Full Stack Developer Trainer (MERN / JavaScript)

About the role

Unified JavaScript stacks (MERN and Next.js) remain among the most hired full stack skill sets in SaaS, fintech and product companies. Learners need a trainer who has shipped real products, can teach clean architecture, and prepares them for the interview. You will take learners from web fundamentals to deploying a complete, tested, production-style application.

Why this role matters now: TypeScript, React, Node.js, SQL and basic cloud deployment are the core combination in current full stack hiring, and interviews are practical: candidates are asked to build a small typed API and UI in one sitting.

What you will do

• Deliver live online full stack batches from fundamentals to deployment
• Guide learners through 2–3 portfolio projects built the way product teams work (Git, code review, CI)
• Teach debugging, testing and API design — not only syntax
• Run code reviews, assignments with feedback and mock interviews
• Add current topics: Next.js rendering strategies and calling AI / LLM APIs

Technical skills you must be strong in

Front end

• HTML5, CSS3, Flexbox / Grid, responsive design, Tailwind CSS
• JavaScript (ES6+), TypeScript, asynchronous programming
• React: hooks, context, Redux Toolkit / Zustand, React Router, React Query
• Next.js (routing, SSR / SSG, API routes)

Back end & data

• Node.js, Express / NestJS, REST and GraphQL APIs
• MongoDB with Mongoose; PostgreSQL / MySQL with an ORM
• Authentication and authorisation: JWT, OAuth, sessions; input validation and API security
• Caching with Redis, file uploads, email and payment integrations

Quality & delivery

• Git and GitHub, pull requests, code review
• Testing: Jest, React Testing Library, Playwright / Cypress, API tests
• Docker, CI/CD with GitHub Actions, deployment on AWS / Vercel / Render
• System-design basics, performance and accessibility basics

Certifications

• Not mandatory — a strong, public portfolio of shipped projects matters more
• Cloud or professional certificates are a plus

You should have (the Fourcup trainer standard)

• 7+ years of hands-on industry experience in full stack web development — real projects delivered, not only teaching
• Excellent spoken and written English — you can explain a hard concept simply, live, to career-switchers and freshers
• A genuine interest in teaching and mentoring; patience with beginners and joy in seeing learners get job-ready
• Strong delivery: structured live sessions, hands-on demos and labs, clear doubt-clearing, assignments with feedback and mock interviews
• Reliable and professional: punctual, prepared, follows the batch plan and curriculum, and keeps learners motivated

Nice to have

• Prior experience as a trainer, mentor or interviewer
• Published content, a blog, GitHub projects or conference talks
• Experience preparing learners for interviews and certifications

How we select

• Resume and profile review
• A short demo session: teach one topic from this role live, as you would to a batch
• A technical and teaching-approach discussion with the Fourcup team

What we offer

• Flexible weekend / evening online batches and a clear batch plan
• Ready course material, labs and learner support from the Fourcup team
• Competitive pay based on your experience and batches taken
• The chance to build a long-term trainer career with a growing institute