Course

Java Full Stack Development with AI — Spring Boot, Microservices & React

A complete Java Full Stack Developer program: modern Java 21+ fundamentals and advanced collections/streams, Spring Core and Spring Boot, production REST APIs with Spring Data JPA and Hibernate, database design and optimization, microservices with Spring Cloud (Eureka, API Gateway, Resilience4j), a React and TypeScript frontend, security with Spring Security (JWT/OAuth2), AI-augmented Java development with GitHub Copilot/Claude Code and the Spring AI framework, and testing, containers and CI/CD — choose from 6 flexible packages, each with mock-interview checkpoints and full career-launch support.

⏱ 15 Weeks 🖥 Online 💻 5 Projects ⭐ 4.8/5

🎓 Book Free Demo 📞 +91 75502 51906

INCLUDED AT NO COST

Everything below is included at no extra cost

🚀 FREE!

Live Project(s)

💼 FREE!

Job Reference(s)

🎓 FREE!

Career Guidance

♾️ FREE!

Life Time Support

PACKAGES

We Offer Responsive Packages With An Unexplored Syllabus

Start from zero

⏱ 5 Weeks

★ 4.7/5

Java Backend Foundations

Core and advanced Java plus your first Spring Boot service — the on-ramp for anyone starting from zero.

Java Programming Fundamentals (Java 21+)
Advanced Java & Collections
Spring Core & Spring Boot Fundamentals
Comprehensive Interview Prep & Career Launch

Java 21, IntelliJ/Eclipse, Git & GitHub, Spring Boot

View Curriculum →

Most enrolled

⏱ 6.5 Weeks

★ 4.9/5

Spring Boot REST API Specialist

Java through production-grade Spring Boot REST APIs backed by a real relational database.

Java Programming Fundamentals (Java 21+)
Advanced Java & Collections
Spring Core & Spring Boot Fundamentals
REST APIs with Spring Boot, Spring Data JPA & Hibernate
Databases for Java Backends
Comprehensive Interview Prep & Career Launch

Java 21, Spring Boot, Spring Data JPA, Hibernate, MySQL/PostgreSQL, HikariCP

View Curriculum →

Custom

⏱ 8 Weeks

★ 4.8/5

Java Full Stack Core

Spring Boot backend, secured with Spring Security, paired with a real React/TypeScript frontend.

Spring Core & Spring Boot Fundamentals
REST APIs with Spring Boot, Spring Data JPA & Hibernate
Databases for Java Backends
Frontend with React & TypeScript for Java Developers
Security with Spring Security
Comprehensive Interview Prep & Career Launch

Java 21, Spring Boot, Spring Data JPA, Hibernate, MySQL/PostgreSQL, React, TypeScript, Spring Security

View Curriculum →

AI-specialized

⏱ 7 Weeks

★ 4.8/5

Java Microservices & AI

Spring Cloud microservices with resilience patterns, secured, and built with AI-augmented workflows, Spring AI and production observability.

Spring Core & Spring Boot Fundamentals
Microservices with Spring Cloud
Security with Spring Security
AI-Augmented Java Development
Observability & Modern Cloud Deployment for Spring Boot
Comprehensive Interview Prep & Career Launch

Spring Cloud, Eureka, Resilience4j, Spring Security, Spring AI, GitHub Copilot, OpenTelemetry, Prometheus, Grafana, pgvector, Railway, Fly.io

View Curriculum →

Flagship

⏱ 17 Weeks

★ 4.9/5

Complete Java Full Stack Flagship Program

Every module — Java, Spring Boot, microservices, React, security, AI, DevOps and production observability — the full Java Full Stack Developer path.

All 12 core modules, start to finish
Spring Boot REST APIs + Spring Cloud microservices
React/TypeScript frontend & Spring Security
AI-Augmented Java Development with Spring AI
Observability & Modern Cloud Deployment (OpenTelemetry, Prometheus/Grafana, pgvector, Railway/Fly.io)
Comprehensive Interview Prep & Career Launch

Java 21, Spring Boot, Spring Data JPA, Hibernate, MySQL/PostgreSQL, Spring Cloud, Eureka, Resilience4j, React, TypeScript, Spring Security, Spring AI, Docker, Kubernetes, Jenkins, GitHub Actions, OpenTelemetry, Prometheus, Grafana, pgvector, Railway, Fly.io

View Curriculum →

Customized

⏱ Custom

★ 4.8/5

Build Your Own (Customized)

Pick exactly the modules you need from the full Java full stack module bank, priced and scheduled to match.

Choose any modules from the shared bank
Custom duration & pricing
Same trainers, same mock-interview access
Comprehensive Interview Prep & Career Launch included

Selected per module

View Curriculum →

LEARNING OUTCOMES

What you will be able to do

Concrete skills, not topic names — each one is something you can show an interviewer.

🎯

Design test cases that find real defects

Boundary values, equivalence classes and edge cases — not just happy-path coverage.

🧪

Automate with a real framework

Page Object Model, reusable helpers and a suite you can actually maintain.

📊

Read a defect report the way a developer will

Reproduction steps, severity and evidence — reports that get fixed, not ignored.

🔧

Build and maintain a test suite

Structure tests so they survive the product changing under them.

🔗

Test APIs, not just interfaces

Postman and REST Assured, including auth flows most courses skip.

📈

Run suites in a CI pipeline

Jenkins and GitHub Actions — tests that run on every commit automatically.

SUCCESS STORIES

Our Students Excelling Worldwide

“

Padmavathi Govindarajan

Associate Software Engineer

🏢 Cognizant

★★★★★

“The Jenkins module on this course is what actually got me interview-ready for Cognizant — practical, not just theory.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Hema Latha Ravindran

Software Test Engineer

🏢 Deloitte

★★★★★

“I came in with almost no exposure to JUnit 5. By the end of the Java Full Stack Development with AI — Spring Boot, Microservices & React course I was confident enough to talk through it in my Deloitte interview.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Farida Sheik

Associate Software Engineer

🏢 Mphasis

★★★★★

“What stood out on the Java Full Stack Development with AI — Spring Boot, Microservices & React course was how much real, hands-on time we got with Spring Cloud instead of just slides.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

TOOLS & SKILLS

Tools and skills covered

Java

Selenium

TestNG

Postman

Git

Jenkins

JMeter

SQL

🏆

Certificate of Completion

Awarded once every module and project is complete — recognised by our hiring partners.

IS THIS FOR YOU?

Who this course is for

If none of these describe you, tell us — we will point you at a better fit rather than sell you this one.

🎓

Freshers from any engineering branch

🔁

Manual testers hitting the automation ceiling

💻

Support engineers moving into QA

WHY IN FOURCUP?

Software Testing Program

Practical exposure to actual work environment

Work on live, under-construction projects with the exposure of an actual work environment, alongside a freelancer.

Dynamic syllabus structure

Built with multiple industry experts, so students become genuinely fluent in the subject rather than exam-ready.

Expert teachers who are active practitioners too

Mentors bring real industry experience and share their ups, downs and delivery skills, not just slides.

GET STARTED

Get Started Today

Download our Syllabus and review it thoroughly.

Request Call Back / Apply the Enquiry Form.

Join Our Free Demo Class.

Understand the Opportunity.

Join the Training session and become an expert!

KEEP EXPLORING

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AI, ML & Soft Skills

AI, ML & Soft Skills — Complete Career Accelerator

A complete AI/ML Engineer flagship program covering Python and statistical foundations, classical machine learning with scikit-learn, XGBoost and LightGBM, deep learning with PyTorch, the full LLM/GenAI engineering stack (Hugging Face, LangChain, LlamaIndex, fine-tuning, end-to-end RAG pipeline design), vector databases (Pinecone, Weaviate, Chroma, Milvus), MLOps (FastAPI, Docker, Kubernetes, MLflow, Airflow, ONNX), AI agent frameworks (LangGraph, AutoGen, CrewAI, MCP) and responsible AI — folded together with professional communication, behavioral interview mastery and resume/portfolio building, so technical depth and interview readiness are built in one program instead of two.

PythonNumPypandasscikit-learnXGBoost+19 more

15% OFF Flagship AI/ML program

AI, ML & Soft Skills

Soft Skills & Interview Readiness Add-On

A focused Soft Skills & Interview Readiness program covering professional communication for technical roles, group discussion and aptitude fundamentals, the STAR method for behavioral interviews, body language and virtual-interview presence, salary negotiation and offer evaluation, workplace professionalism, and resume/LinkedIn optimization — anchored by a mock interview tailored to your own track (developer, tester or cloud/DevOps), not a generic HR-round rehearsal. Designed to work equally well as a standalone short course or as an add-on graduates of other Fourcup tracks bolt onto their main course.

Zoom/Google MeetSlackLinkedInResume templates

22% OFF Standalone or add-on

AI, ML & Soft Skills

AI & GenAI Add-On — Practical AI Skills for Tech Professionals

Works two ways: as a standalone short course in practical AI/GenAI literacy, or as an add-on for graduates of Fourcup's testing, development or cloud/DevOps tracks who want to layer AI skills onto their main course. Covers what LLMs are and aren't, prompt engineering, evaluating AI output critically, using AI coding/testing/ops assistants day to day, RAG (embeddings, vector databases), calling LLM APIs with streaming and tool-calling, a beginner-level intro to AI agents (LangGraph, AutoGen, CrewAI, MCP), and responsible AI use — scoped for practical fluency, not full ML engineering depth.

ChatGPTClaudeGeminiGitHub CopilotClaude Code+10 more

20% OFF Add-on ready

CURRICULUM

Module by module

Open any module to see exactly what it covers. Nothing is hidden behind a "download the syllabus" form.

5 Weeks

DURATION

MODULES

REAL-TIME PROJECTS

MOCK INTERVIEWS

Start from zero

Java Backend Foundations

⏱ 5 Weeks ★ 4.7

4 modules

Most enrolled

Spring Boot REST API Specialist

⏱ 6.5 Weeks ★ 4.9

6 modules

Custom

Java Full Stack Core

⏱ 8 Weeks ★ 4.8

6 modules

AI-specialized

Java Microservices & AI

⏱ 7 Weeks ★ 4.8

6 modules

Flagship

Complete Java Full Stack Flagship Program

⏱ 17 Weeks ★ 4.9

12 modules

Customized

Build Your Own (Customized)

⏱ Custom ★ 4.8

0 modules

1 Java Programming Fundamentals (Java 21+) 1.5 wks ▾

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

2 Advanced Java & Collections 1.5 wks ▾

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

3 Spring Core & Spring Boot Fundamentals 1 wk ▾

Topic	What You'll Learn
1. Dependency Injection & IoC	Beans, the application context, and why Spring manages object lifecycles instead of you calling `new` everywhere.
2. Spring Boot Autoconfiguration	What Spring Boot actually does under `@SpringBootApplication`, and when to override its defaults instead of fighting them.
3. Application Properties & Profiles	application.yml, environment-specific profiles (dev/test/prod), and externalized configuration.
4. Building Your First REST Service	A working Spring Boot application with a controller, service and response — end to end, before the bigger modules layer on complexity.
5. 🚀 Mock Interview Checkpoint	Spring fundamentals: dependency injection, bean scopes, and "explain what happens when a Spring Boot app starts" live questions.

4 Comprehensive Interview Preparation & Career Launch 1 wk ▾

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

1 Java Programming Fundamentals (Java 21+) 1 wk ▾

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

2 Advanced Java & Collections 1 wk ▾

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

3 Spring Core & Spring Boot Fundamentals 1 wk ▾

Topic	What You'll Learn
1. Dependency Injection & IoC	Beans, the application context, and why Spring manages object lifecycles instead of you calling `new` everywhere.
2. Spring Boot Autoconfiguration	What Spring Boot actually does under `@SpringBootApplication`, and when to override its defaults instead of fighting them.
3. Application Properties & Profiles	application.yml, environment-specific profiles (dev/test/prod), and externalized configuration.
4. Building Your First REST Service	A working Spring Boot application with a controller, service and response — end to end, before the bigger modules layer on complexity.
5. 🚀 Mock Interview Checkpoint	Spring fundamentals: dependency injection, bean scopes, and "explain what happens when a Spring Boot app starts" live questions.

4 REST APIs with Spring Boot, Spring Data JPA & Hibernate 1.5 wks ▾

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

5 Databases for Java Backends 1 wk ▾

Topic	What You'll Learn
1. Schema Design	Normalization, keys and indexes for MySQL/PostgreSQL, designed around how a Spring Data application will actually query it.
2. Query Optimization	Reading an EXPLAIN plan, spotting a missing index, and fixing the N+1 query problem Hibernate silently introduces.
3. Transactions	@Transactional, isolation levels, and what actually happens when two requests touch the same row at once.
4. Connection Pooling with HikariCP	Why pool sizing matters under load, and the default Spring Boot uses versus when you tune it yourself.
4.1) Real-world starting point	Most junior Java developers can write a query; fewer can explain why their API got slow in production. This module is built around that gap.

6 Comprehensive Interview Preparation & Career Launch 1 wk ▾

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

1 Spring Core & Spring Boot Fundamentals 1 wk ▾

Topic	What You'll Learn
1. Dependency Injection & IoC	Beans, the application context, and why Spring manages object lifecycles instead of you calling `new` everywhere.
2. Spring Boot Autoconfiguration	What Spring Boot actually does under `@SpringBootApplication`, and when to override its defaults instead of fighting them.
3. Application Properties & Profiles	application.yml, environment-specific profiles (dev/test/prod), and externalized configuration.
4. Building Your First REST Service	A working Spring Boot application with a controller, service and response — end to end, before the bigger modules layer on complexity.
5. 🚀 Mock Interview Checkpoint	Spring fundamentals: dependency injection, bean scopes, and "explain what happens when a Spring Boot app starts" live questions.

2 REST APIs with Spring Boot, Spring Data JPA & Hibernate 1.5 wks ▾

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

3 Databases for Java Backends 1 wk ▾

Topic	What You'll Learn
1. Schema Design	Normalization, keys and indexes for MySQL/PostgreSQL, designed around how a Spring Data application will actually query it.
2. Query Optimization	Reading an EXPLAIN plan, spotting a missing index, and fixing the N+1 query problem Hibernate silently introduces.
3. Transactions	@Transactional, isolation levels, and what actually happens when two requests touch the same row at once.
4. Connection Pooling with HikariCP	Why pool sizing matters under load, and the default Spring Boot uses versus when you tune it yourself.
4.1) Real-world starting point	Most junior Java developers can write a query; fewer can explain why their API got slow in production. This module is built around that gap.

4 Frontend with React & TypeScript for Java Developers 2 wks ▾

Topic	What You'll Learn
1. React Fundamentals for Backend Developers	Components, props, and JSX, taught from the perspective of someone who already thinks in Java classes.
2. TypeScript Essentials	Types, interfaces, and why a typed frontend catches the same class of bugs your Java backend already catches at compile time.
3. State Management	useState/useEffect, and lifting state up cleanly in a small but real application.
4. Forms & Validation	Building forms that mirror your Spring Boot Bean Validation rules, so frontend and backend agree on what "valid" means.
5. Consuming a Spring Boot API	Fetch/Axios patterns, handling loading and error states, and wiring a real CRUD screen end to end against your own backend.
5.1) Where this shows up in real jobs	"Full stack" job postings increasingly expect a Java developer to own the whole screen, not hand a spec to a separate frontend team.

Topic	What You'll Learn
1. React Fundamentals for Backend Developers	Components, props, and JSX, taught from the perspective of someone who already thinks in Java classes.
2. TypeScript Essentials	Types, interfaces, and why a typed frontend catches the same class of bugs your Java backend already catches at compile time.
3. State Management	useState/useEffect, and lifting state up cleanly in a small but real application.
4. Forms & Validation	Building forms that mirror your Spring Boot Bean Validation rules, so frontend and backend agree on what "valid" means.
5. Consuming a Spring Boot API	Fetch/Axios patterns, handling loading and error states, and wiring a real CRUD screen end to end against your own backend.
5.1) Where this shows up in real jobs	"Full stack" job postings increasingly expect a Java developer to own the whole screen, not hand a spec to a separate frontend team.

5 Security with Spring Security 1.5 wks ▾

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

6 Comprehensive Interview Preparation & Career Launch 1 wk ▾

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

1 Spring Core & Spring Boot Fundamentals 0.5 wk ▾

Topic	What You'll Learn
1. Dependency Injection & IoC	Beans, the application context, and why Spring manages object lifecycles instead of you calling `new` everywhere.
2. Spring Boot Autoconfiguration	What Spring Boot actually does under `@SpringBootApplication`, and when to override its defaults instead of fighting them.
3. Application Properties & Profiles	application.yml, environment-specific profiles (dev/test/prod), and externalized configuration.
4. Building Your First REST Service	A working Spring Boot application with a controller, service and response — end to end, before the bigger modules layer on complexity.
5. 🚀 Mock Interview Checkpoint	Spring fundamentals: dependency injection, bean scopes, and "explain what happens when a Spring Boot app starts" live questions.

2 Microservices with Spring Cloud 2 wks ▾

Topic	What You'll Learn
1. Why Microservices	Splitting a monolith into independently deployable services, and the real trade-offs (network calls, data consistency) nobody mentions in the marketing pitch.
2. Service Discovery with Eureka	Services finding each other by name instead of hardcoded URLs.
3. API Gateway	Routing, and cross-cutting concerns (auth, rate limiting) handled once at the edge instead of in every service.
4. Centralized Configuration	Spring Cloud Config for managing settings across many services without redeploying each one.
5. Resilience Patterns with Resilience4j	Circuit breakers, retries, and fallback logic so one slow dependency doesn't cascade into a full outage.
6. Inter-Service Communication	Synchronous REST calls with a load-balanced client vs. asynchronous messaging, and when to choose which.
6.1) Why this module exists	"I built a REST API" is table stakes; "I understand what happens when a downstream service goes down" is what separates a mid-level candidate from a junior one.

Topic	What You'll Learn
1. Why Microservices	Splitting a monolith into independently deployable services, and the real trade-offs (network calls, data consistency) nobody mentions in the marketing pitch.
2. Service Discovery with Eureka	Services finding each other by name instead of hardcoded URLs.
3. API Gateway	Routing, and cross-cutting concerns (auth, rate limiting) handled once at the edge instead of in every service.
4. Centralized Configuration	Spring Cloud Config for managing settings across many services without redeploying each one.
5. Resilience Patterns with Resilience4j	Circuit breakers, retries, and fallback logic so one slow dependency doesn't cascade into a full outage.
6. Inter-Service Communication	Synchronous REST calls with a load-balanced client vs. asynchronous messaging, and when to choose which.
6.1) Why this module exists	"I built a REST API" is table stakes; "I understand what happens when a downstream service goes down" is what separates a mid-level candidate from a junior one.

3 Security with Spring Security 1 wk ▾

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

4 AI-Augmented Java Development 1.5 wks ▾

Topic	What You'll Learn
1. AI Coding Assistants for Java & Spring	Using GitHub Copilot and Claude Code inside a real Spring Boot project: scaffolding a controller, generating tests, and reviewing what the assistant produced like an editor, not a rubber stamp.
2. The Spring AI Framework	Wiring an LLM into a Spring Boot application: chat clients, prompt templates, and structured output mapped back to Java objects.
3. Retrieval-Augmented Generation with Spring AI	Connecting a vector store to ground LLM responses in your own application data.
4. AI-Assisted Code Review & Legacy Refactoring	Using AI to explain an unfamiliar legacy Java codebase and propose a safe, incremental refactor.
4.1) Where AI gets it wrong	Hallucinated Spring annotations and confidently wrong dependency versions — treating AI output as a first draft that still needs a Java developer's judgement, the same discipline taught across every Fourcup AI-augmented module.

Topic	What You'll Learn
1. AI Coding Assistants for Java & Spring	Using GitHub Copilot and Claude Code inside a real Spring Boot project: scaffolding a controller, generating tests, and reviewing what the assistant produced like an editor, not a rubber stamp.
2. The Spring AI Framework	Wiring an LLM into a Spring Boot application: chat clients, prompt templates, and structured output mapped back to Java objects.
3. Retrieval-Augmented Generation with Spring AI	Connecting a vector store to ground LLM responses in your own application data.
4. AI-Assisted Code Review & Legacy Refactoring	Using AI to explain an unfamiliar legacy Java codebase and propose a safe, incremental refactor.
4.1) Where AI gets it wrong	Hallucinated Spring annotations and confidently wrong dependency versions — treating AI output as a first draft that still needs a Java developer's judgement, the same discipline taught across every Fourcup AI-augmented module.

5 Observability & Modern Cloud Deployment for Spring Boot 1 wk ▾

Topic	What You'll Learn
1. OpenTelemetry & Micrometer	Instrumenting a Spring Boot service for distributed tracing so a slow request can be followed across microservices, not guessed at.
2. Prometheus & Grafana for Production Monitoring	Exposing metrics via Spring Boot Actuator, scraping them with Prometheus, and building dashboards and alerts a team actually watches.
3. PostgreSQL + pgvector for AI-Ready Data	Adding vector search on top of the same PostgreSQL database already taught in this course, and wiring it as a vector store for Spring AI.
4. Modern Cloud Deployment Targets	Deploying a Spring Boot service to Railway, Fly.io or Render alongside traditional Docker/Kubernetes hosting, and knowing when the lighter-weight option is the right call.
4.1) Why this module exists	2026 job postings increasingly name OpenTelemetry, a managed Postgres+pgvector stack, or a Railway/Fly.io deployment target directly, even for Java roles. A candidate who has only deployed to a self-managed Kubernetes cluster reads as narrower than one who can explain the tradeoffs.

Topic	What You'll Learn
1. OpenTelemetry & Micrometer	Instrumenting a Spring Boot service for distributed tracing so a slow request can be followed across microservices, not guessed at.
2. Prometheus & Grafana for Production Monitoring	Exposing metrics via Spring Boot Actuator, scraping them with Prometheus, and building dashboards and alerts a team actually watches.
3. PostgreSQL + pgvector for AI-Ready Data	Adding vector search on top of the same PostgreSQL database already taught in this course, and wiring it as a vector store for Spring AI.
4. Modern Cloud Deployment Targets	Deploying a Spring Boot service to Railway, Fly.io or Render alongside traditional Docker/Kubernetes hosting, and knowing when the lighter-weight option is the right call.
4.1) Why this module exists	2026 job postings increasingly name OpenTelemetry, a managed Postgres+pgvector stack, or a Railway/Fly.io deployment target directly, even for Java roles. A candidate who has only deployed to a self-managed Kubernetes cluster reads as narrower than one who can explain the tradeoffs.

6 Comprehensive Interview Preparation & Career Launch 1 wk ▾

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

1 Java Programming Fundamentals (Java 21+) 1.5 wks ▾

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

Topic	What You'll Learn
1. Java Syntax & the JVM	Variables, control flow, methods, and how source becomes bytecode that actually runs on a server.
2. Object-Oriented Programming	Classes, objects, inheritance, interfaces, and encapsulation, built through small programs you can defend in an interview.
3. Records & Pattern Matching	Java 17-21's records, sealed classes, and pattern matching in switch — the modern, concise Java that current hiring managers now expect, not just legacy verbose classes.
4. Modern Java Language Features	var, text blocks, enhanced switch expressions, and virtual threads (Project Loom) for lightweight concurrency.
5. Git & GitHub	Branching, commits, pull requests, and resolving conflicts, because every module after this one assumes you already work this way.
5.1) Real-world starting point	Most beginner Java courses still teach as if Java 8 were current. Starting on Java 21+ syntax means you never have to unlearn habits later.

2 Advanced Java & Collections 1.5 wks ▾

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

Topic	What You'll Learn
1. Collections Framework	List, Set, Map implementations, and choosing the right one for the access pattern you actually need.
2. Streams API	Filtering, mapping and reducing collections declaratively instead of with hand-written loops.
3. Functional Interfaces & Lambdas	Predicate, Function, Consumer, and writing your own functional interfaces for cleaner service-layer code.
4. Exception Handling	Checked vs. unchecked exceptions, custom exceptions, and designing an error-handling strategy an API can actually return.
5. Multithreading Basics	Threads, the Executor framework, and the concurrency bugs (race conditions, deadlocks) that show up once code moves past a single request.
5.1) Why this module exists	Streams and functional-style code are now the default in production Spring codebases; a candidate who still writes only imperative loops reads as behind, even with correct logic.

3 Spring Core & Spring Boot Fundamentals 1 wk ▾

Topic	What You'll Learn
1. Dependency Injection & IoC	Beans, the application context, and why Spring manages object lifecycles instead of you calling `new` everywhere.
2. Spring Boot Autoconfiguration	What Spring Boot actually does under `@SpringBootApplication`, and when to override its defaults instead of fighting them.
3. Application Properties & Profiles	application.yml, environment-specific profiles (dev/test/prod), and externalized configuration.
4. Building Your First REST Service	A working Spring Boot application with a controller, service and response — end to end, before the bigger modules layer on complexity.
5. 🚀 Mock Interview Checkpoint	Spring fundamentals: dependency injection, bean scopes, and "explain what happens when a Spring Boot app starts" live questions.

4 REST APIs with Spring Boot, Spring Data JPA & Hibernate 1.5 wks ▾

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

Topic	What You'll Learn
1. Building Production REST Controllers	Request mapping, DTOs vs. entities, status codes, and consistent error responses across an API.
2. JPA Entity Mapping	@Entity, relationships (OneToMany, ManyToMany), and mapping a real relational schema to Java objects with Hibernate.
3. Spring Data Repositories	JpaRepository, derived query methods, and custom @Query when the derived method isn't enough.
4. Pagination & Sorting	Returning large result sets the way a real frontend actually consumes them, not one giant unpaginated array.
5. Bean Validation	@Valid, custom validators, and returning field-level errors a frontend can render directly.
5.1) Why this module exists	This is the single most commonly interviewed Java backend skill: build a correct, paginated, validated REST API against a real database, not a toy in-memory list.

5 Databases for Java Backends 1 wk ▾

Topic	What You'll Learn
1. Schema Design	Normalization, keys and indexes for MySQL/PostgreSQL, designed around how a Spring Data application will actually query it.
2. Query Optimization	Reading an EXPLAIN plan, spotting a missing index, and fixing the N+1 query problem Hibernate silently introduces.
3. Transactions	@Transactional, isolation levels, and what actually happens when two requests touch the same row at once.
4. Connection Pooling with HikariCP	Why pool sizing matters under load, and the default Spring Boot uses versus when you tune it yourself.
4.1) Real-world starting point	Most junior Java developers can write a query; fewer can explain why their API got slow in production. This module is built around that gap.

6 Microservices with Spring Cloud 2 wks ▾

Topic	What You'll Learn
1. Why Microservices	Splitting a monolith into independently deployable services, and the real trade-offs (network calls, data consistency) nobody mentions in the marketing pitch.
2. Service Discovery with Eureka	Services finding each other by name instead of hardcoded URLs.
3. API Gateway	Routing, and cross-cutting concerns (auth, rate limiting) handled once at the edge instead of in every service.
4. Centralized Configuration	Spring Cloud Config for managing settings across many services without redeploying each one.
5. Resilience Patterns with Resilience4j	Circuit breakers, retries, and fallback logic so one slow dependency doesn't cascade into a full outage.
6. Inter-Service Communication	Synchronous REST calls with a load-balanced client vs. asynchronous messaging, and when to choose which.
6.1) Why this module exists	"I built a REST API" is table stakes; "I understand what happens when a downstream service goes down" is what separates a mid-level candidate from a junior one.

Topic	What You'll Learn
1. Why Microservices	Splitting a monolith into independently deployable services, and the real trade-offs (network calls, data consistency) nobody mentions in the marketing pitch.
2. Service Discovery with Eureka	Services finding each other by name instead of hardcoded URLs.
3. API Gateway	Routing, and cross-cutting concerns (auth, rate limiting) handled once at the edge instead of in every service.
4. Centralized Configuration	Spring Cloud Config for managing settings across many services without redeploying each one.
5. Resilience Patterns with Resilience4j	Circuit breakers, retries, and fallback logic so one slow dependency doesn't cascade into a full outage.
6. Inter-Service Communication	Synchronous REST calls with a load-balanced client vs. asynchronous messaging, and when to choose which.
6.1) Why this module exists	"I built a REST API" is table stakes; "I understand what happens when a downstream service goes down" is what separates a mid-level candidate from a junior one.

7 Frontend with React & TypeScript for Java Developers 2 wks ▾

Topic	What You'll Learn
1. React Fundamentals for Backend Developers	Components, props, and JSX, taught from the perspective of someone who already thinks in Java classes.
2. TypeScript Essentials	Types, interfaces, and why a typed frontend catches the same class of bugs your Java backend already catches at compile time.
3. State Management	useState/useEffect, and lifting state up cleanly in a small but real application.
4. Forms & Validation	Building forms that mirror your Spring Boot Bean Validation rules, so frontend and backend agree on what "valid" means.
5. Consuming a Spring Boot API	Fetch/Axios patterns, handling loading and error states, and wiring a real CRUD screen end to end against your own backend.
5.1) Where this shows up in real jobs	"Full stack" job postings increasingly expect a Java developer to own the whole screen, not hand a spec to a separate frontend team.

Topic	What You'll Learn
1. React Fundamentals for Backend Developers	Components, props, and JSX, taught from the perspective of someone who already thinks in Java classes.
2. TypeScript Essentials	Types, interfaces, and why a typed frontend catches the same class of bugs your Java backend already catches at compile time.
3. State Management	useState/useEffect, and lifting state up cleanly in a small but real application.
4. Forms & Validation	Building forms that mirror your Spring Boot Bean Validation rules, so frontend and backend agree on what "valid" means.
5. Consuming a Spring Boot API	Fetch/Axios patterns, handling loading and error states, and wiring a real CRUD screen end to end against your own backend.
5.1) Where this shows up in real jobs	"Full stack" job postings increasingly expect a Java developer to own the whole screen, not hand a spec to a separate frontend team.

8 Security with Spring Security 1.5 wks ▾

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

Topic	What You'll Learn
1. Authentication & Authorization	Spring Security's filter chain, and the difference between "who are you" and "what are you allowed to do."
2. JWT-Based Authentication	Issuing, validating and refreshing JSON Web Tokens across a stateless API.
3. OAuth2	Authorization Code and Client Credentials flows, and integrating a third-party identity provider.
4. Method-Level Security	@PreAuthorize and role-based access control enforced at the service layer, not just the URL.
5. Securing Microservices	Propagating identity across service boundaries so the API Gateway isn't the only thing checking who's calling.
5.1) Why this module exists	Nearly every real Spring Boot job requires securing an API properly; most beginner courses leave this out entirely or treat it as an afterthought.

9 AI-Augmented Java Development 1.5 wks ▾

Topic	What You'll Learn
1. AI Coding Assistants for Java & Spring	Using GitHub Copilot and Claude Code inside a real Spring Boot project: scaffolding a controller, generating tests, and reviewing what the assistant produced like an editor, not a rubber stamp.
2. The Spring AI Framework	Wiring an LLM into a Spring Boot application: chat clients, prompt templates, and structured output mapped back to Java objects.
3. Retrieval-Augmented Generation with Spring AI	Connecting a vector store to ground LLM responses in your own application data.
4. AI-Assisted Code Review & Legacy Refactoring	Using AI to explain an unfamiliar legacy Java codebase and propose a safe, incremental refactor.
4.1) Where AI gets it wrong	Hallucinated Spring annotations and confidently wrong dependency versions — treating AI output as a first draft that still needs a Java developer's judgement, the same discipline taught across every Fourcup AI-augmented module.

Topic	What You'll Learn
1. AI Coding Assistants for Java & Spring	Using GitHub Copilot and Claude Code inside a real Spring Boot project: scaffolding a controller, generating tests, and reviewing what the assistant produced like an editor, not a rubber stamp.
2. The Spring AI Framework	Wiring an LLM into a Spring Boot application: chat clients, prompt templates, and structured output mapped back to Java objects.
3. Retrieval-Augmented Generation with Spring AI	Connecting a vector store to ground LLM responses in your own application data.
4. AI-Assisted Code Review & Legacy Refactoring	Using AI to explain an unfamiliar legacy Java codebase and propose a safe, incremental refactor.
4.1) Where AI gets it wrong	Hallucinated Spring annotations and confidently wrong dependency versions — treating AI output as a first draft that still needs a Java developer's judgement, the same discipline taught across every Fourcup AI-augmented module.

10 Testing, Containers & CI/CD 1.5 wks ▾

Topic	What You'll Learn
1. Unit Testing with JUnit 5 & Mockito	Testing services in isolation, mocking dependencies, and writing tests that actually catch regressions.
2. Integration Testing with Testcontainers	Running tests against a real, disposable database container instead of mocking your way around one.
3. Docker	Containerizing a Spring Boot application and a React frontend, and writing a Dockerfile you'd actually ship.
4. Kubernetes Basics	Pods, deployments and services — enough to understand where a containerized app actually runs in production.
5. CI/CD with Jenkins & GitHub Actions	Building a pipeline that tests, builds and deploys on every commit, the way a real team's repo is wired.

11 Observability & Modern Cloud Deployment for Spring Boot 1 wk ▾

Topic	What You'll Learn
1. OpenTelemetry & Micrometer	Instrumenting a Spring Boot service for distributed tracing so a slow request can be followed across microservices, not guessed at.
2. Prometheus & Grafana for Production Monitoring	Exposing metrics via Spring Boot Actuator, scraping them with Prometheus, and building dashboards and alerts a team actually watches.
3. PostgreSQL + pgvector for AI-Ready Data	Adding vector search on top of the same PostgreSQL database already taught in this course, and wiring it as a vector store for Spring AI.
4. Modern Cloud Deployment Targets	Deploying a Spring Boot service to Railway, Fly.io or Render alongside traditional Docker/Kubernetes hosting, and knowing when the lighter-weight option is the right call.
4.1) Why this module exists	2026 job postings increasingly name OpenTelemetry, a managed Postgres+pgvector stack, or a Railway/Fly.io deployment target directly, even for Java roles. A candidate who has only deployed to a self-managed Kubernetes cluster reads as narrower than one who can explain the tradeoffs.

Topic	What You'll Learn
1. OpenTelemetry & Micrometer	Instrumenting a Spring Boot service for distributed tracing so a slow request can be followed across microservices, not guessed at.
2. Prometheus & Grafana for Production Monitoring	Exposing metrics via Spring Boot Actuator, scraping them with Prometheus, and building dashboards and alerts a team actually watches.
3. PostgreSQL + pgvector for AI-Ready Data	Adding vector search on top of the same PostgreSQL database already taught in this course, and wiring it as a vector store for Spring AI.
4. Modern Cloud Deployment Targets	Deploying a Spring Boot service to Railway, Fly.io or Render alongside traditional Docker/Kubernetes hosting, and knowing when the lighter-weight option is the right call.
4.1) Why this module exists	2026 job postings increasingly name OpenTelemetry, a managed Postgres+pgvector stack, or a Railway/Fly.io deployment target directly, even for Java roles. A candidate who has only deployed to a self-managed Kubernetes cluster reads as narrower than one who can explain the tradeoffs.

12 Comprehensive Interview Preparation & Career Launch 1 wk ▾

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

Topic	What You'll Learn
1. Java/Spring Boot/Microservices Interview Question Bank	Core Java, Spring, JPA, microservices and security questions asked in real interviews, reviewed and explained.
2. Resume & LinkedIn Building for Java Full Stack Roles	Framing Spring Boot and React projects the way a hiring manager actually scans a resume.
3. Live Mock Interviews with Feedback	Recorded, one-on-one mock interviews with a working Java full stack engineer, with specific, actionable feedback.
4. "Design a Microservice for This Requirement" Whiteboard Round	Practising the system-level question that trips up otherwise-strong candidates.
5. Salary Negotiation & Offer Evaluation	Reading an offer letter and negotiating from an informed position.
6. Placement Assistance	Referrals and interview opportunities where available, resume review, and continued mentor access after the course ends. Placement assistance is support, not a guarantee of a job or a specific salary — see full terms.
7. 🚀 Final Mock Interview	A full-length, role-realistic Java Full Stack Developer interview, end to end.

The curriculum for this package has not been added yet.

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Online

🎯

15 Weeks Duration (Flexible)

🖥

5 Real Industry Projects

🏆

Certificate on Completion

♾️

Lifetime Access to Recordings

💼

Job References to 50+ Companies

🎯

5 Mock Interview Rounds

🗣

Soft Skills & Communication

📱

WhatsApp Batch Support

📥

Brochure & Syllabus Download

🛠 Tools Covered:

Java 21IntelliJ/EclipseGit & GitHubSpring BootSpring Data JPAHibernateMySQL/PostgreSQLHikariCPSpring CloudEurekaResilience4jReactTypeScriptSpring SecuritySpring AIGitHub CopilotDockerKubernetesJenkinsGitHub ActionsJUnit 5MockitoTestcontainersJIRA

⬇️ Download Syllabus 💬 Enquire About This Course

SUCCESS STORIES

Our Students Excelling Worldwide

“

Padmavathi Govindarajan

Associate Software Engineer

🏢 Cognizant

★★★★★

“The Jenkins module on this course is what actually got me interview-ready for Cognizant — practical, not just theory.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Hema Latha Ravindran

Software Test Engineer

🏢 Deloitte

★★★★★

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Farida Sheik

Associate Software Engineer

🏢 Mphasis

★★★★★

“What stood out on the Java Full Stack Development with AI — Spring Boot, Microservices & React course was how much real, hands-on time we got with Spring Cloud instead of just slides.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

KEEP EXPLORING

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YOUR MENTOR

Who teaches this course

Sessions are taught by someone who does this work, not by a full-time trainer reading slides.

👨‍🏫

Fourcup Java Full Stack Faculty

Real Industry Trainers, Not Just Instructors

Every Fourcup trainer has a minimum of 9+ years of total IT industry experience and 5+ years of specific, hands-on experience in the exact tool or domain they teach. They are currently working professionals — the frameworks, edge cases and interview questions taught are what's actually used in live projects today. Mock-interview mentors are the same trainers who conduct real technical interviews at their day jobs.

9+ years experience Active practitioner

SUCCESS STORIES

Our Students Excelling Worldwide

“

Padmavathi Govindarajan

Associate Software Engineer

🏢 Cognizant

★★★★★

“The Jenkins module on this course is what actually got me interview-ready for Cognizant — practical, not just theory.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Hema Latha Ravindran

Software Test Engineer

🏢 Deloitte

★★★★★

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Farida Sheik

Associate Software Engineer

🏢 Mphasis

★★★★★

“What stood out on the Java Full Stack Development with AI — Spring Boot, Microservices & React course was how much real, hands-on time we got with Spring Cloud instead of just slides.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

KEEP EXPLORING

Get Your Related Courses

View All Courses

AI, ML & Soft Skills

AI, ML & Soft Skills — Complete Career Accelerator

PythonNumPypandasscikit-learnXGBoost+19 more

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AI, ML & Soft Skills

Soft Skills & Interview Readiness Add-On

Zoom/Google MeetSlackLinkedInResume templates

22% OFF Standalone or add-on

AI, ML & Soft Skills

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ChatGPTClaudeGeminiGitHub CopilotClaude Code+10 more

20% OFF Add-on ready

BATCHES

When you can start

Weekday, weekend and fast-track options. Seats are limited so sessions stay small enough to ask questions in.

Batch dates for this course have not been added yet.

SUCCESS STORIES

Our Students Excelling Worldwide

“

Padmavathi Govindarajan

Associate Software Engineer

🏢 Cognizant

★★★★★

“The Jenkins module on this course is what actually got me interview-ready for Cognizant — practical, not just theory.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Hema Latha Ravindran

Software Test Engineer

🏢 Deloitte

★★★★★

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Farida Sheik

Associate Software Engineer

🏢 Mphasis

★★★★★

“What stood out on the Java Full Stack Development with AI — Spring Boot, Microservices & React course was how much real, hands-on time we got with Spring Cloud instead of just slides.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

KEEP EXPLORING

Get Your Related Courses

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AI, ML & Soft Skills

AI, ML & Soft Skills — Complete Career Accelerator

PythonNumPypandasscikit-learnXGBoost+19 more

15% OFF Flagship AI/ML program

AI, ML & Soft Skills

Soft Skills & Interview Readiness Add-On

Zoom/Google MeetSlackLinkedInResume templates

22% OFF Standalone or add-on

AI, ML & Soft Skills

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ChatGPTClaudeGeminiGitHub CopilotClaude Code+10 more

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FAQ

Questions people actually ask

If yours is not here, call us — a working engineer will answer, not a call centre.

No questions have been added for this course yet.

SUCCESS STORIES

Our Students Excelling Worldwide

“

Padmavathi Govindarajan

Associate Software Engineer

🏢 Cognizant

★★★★★

“The Jenkins module on this course is what actually got me interview-ready for Cognizant — practical, not just theory.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Hema Latha Ravindran

Software Test Engineer

🏢 Deloitte

★★★★★

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

“

Farida Sheik

Associate Software Engineer

🏢 Mphasis

★★★★★

“What stood out on the Java Full Stack Development with AI — Spring Boot, Microservices & React course was how much real, hands-on time we got with Spring Cloud instead of just slides.”

🎓 Java Full Stack Development with AI — Spring Boot, Microservices & React

KEEP EXPLORING

Get Your Related Courses

View All Courses

AI, ML & Soft Skills

AI, ML & Soft Skills — Complete Career Accelerator

PythonNumPypandasscikit-learnXGBoost+19 more

15% OFF Flagship AI/ML program

AI, ML & Soft Skills

Soft Skills & Interview Readiness Add-On

Zoom/Google MeetSlackLinkedInResume templates

22% OFF Standalone or add-on

AI, ML & Soft Skills

AI & GenAI Add-On — Practical AI Skills for Tech Professionals

ChatGPTClaudeGeminiGitHub CopilotClaude Code+10 more

20% OFF Add-on ready