Senior MERN Stack Developer

About the role

The Growth Square is hiring 5 Senior MERN Stack Developers with 2+ years of experience who build faster and smarter with AI. You will design, build and ship web products end to end on MongoDB, Express.js, React and Node.js, using today's AI and LLM coding tools as a core part of how you work, not an afterthought. This is a full-time role based at our office in Indiranagar, Bangalore.

Job Title: Senior MERN Stack Developer
Company: The Growth Square
Experience Required: 2+ years
Openings: 5
Employment Type: Full-time
Location: On-site, Indiranagar, Bangalore
Salary Range: ₹4 lakh – ₹12 lakh per annum

What you'll do

• Build and maintain full-stack web applications on the MERN stack: React frontends, Node.js and Express.js APIs, and MongoDB databases.
• Use AI coding tools (such as Claude Code, Cursor, GitHub Copilot or similar) daily to plan, write, review, test and refactor code.
• Integrate LLM features into our products, such as chat, content generation, summarisation and automated workflows, using APIs from providers like Anthropic and OpenAI.
• Turn business requirements into clean, well-tested and maintainable code.
• Review pull requests from teammates and AI tools critically for correctness, security and performance before code is merged.
• Work closely with design, marketing and growth teams to launch and iterate on features quickly.
• Write clear documentation and share what you learn about new AI tools with the team.

What you must have

• At least 2 years of professional full-stack experience building with the MERN stack.
• MongoDB: schema design, Mongoose, aggregation pipelines and indexing.
• Express.js and Node.js: building RESTful APIs, middleware, and authentication (JWT, OAuth).
• React: hooks, component-driven UI, and state management (Redux, Zustand or Context API).
• Strong JavaScript (ES6+) skills; working knowledge of TypeScript.
• Regular, practical use of the latest AI and LLM coding tools, such as Claude Code, Cursor, GitHub Copilot or Windsurf, as part of your daily workflow.
• Good understanding of how LLMs work in practice: prompting, context, API usage and their limitations.
• Strong Git skills and a pull request (PR)-based workflow: branching, rebasing, resolving merge conflicts and writing clear PRs. Hands-on experience reviewing PRs and giving clear, constructive feedback is required.
• Clear communication and the ability to work independently and take ownership.

Nice to have

• Experience deploying and running applications on platforms like Vercel, Netlify, AWS, Google Cloud or Azure.
• Familiarity with Docker, CI/CD pipelines (such as GitHub Actions) and environment management.
• Experience with monitoring, logging and debugging apps in production.
• Exposure to AI app building blocks: vector databases, embeddings, RAG (retrieval-augmented generation), AI agents or MCP (Model Context Protocol).
• Experience with Next.js, Tailwind CSS, Socket.io for real-time features, or SQL databases such as PostgreSQL.
• Interest in marketing, growth or analytics products.
• A portfolio, GitHub profile or side projects that show what you've built with AI.