Mellow Vault is hiring a Full-Stack MERN Developer!

About the Company:

Mellow Vault is an engineering-first technology ecosystem building developer platforms, cloud sandboxing products, real-time execution systems, and enterprise recruitment infrastructure. The team creates dependable web applications and distributed services that help developers learn, build, and evaluate software at scale.

Responsibilities:

- Build modular, responsive interfaces with React.js and manage complex application state using Redux Toolkit, Redux Thunk, or Redux Saga.
- Design, implement, document, and maintain secure RESTful APIs with Node.js and Express.js, including validation, pagination, rate limiting, and robust error handling.
- Develop efficient MongoDB data models with Mongoose, aggregation pipelines, transaction safeguards, and appropriate indexing strategies.
- Implement authentication and authorization workflows using JWT, OAuth2, and role-based access control.
- Create real-time data flows, caching approaches, optimistic updates, automated tests, and maintainable CI/CD-ready code.
- Participate in architecture discussions, peer reviews, debugging,



and end-to-end delivery of production features.

Requirements:

- Applicants should have 2 to 5 years of commercial experience delivering production software with the MERN stack.
- Robust JavaScript and React fundamentals, including hooks and component design, are required, along with practical expertise in Redux Toolkit, Node.js, Express.js, asynchronous programming, REST API design, and MongoDB schema optimization.
- Familiarity with OpenAPI or Swagger, Git and GitHub workflows, Postman or Insomnia, Docker, Jest or Mocha, and secure API development is expected.
- Exposure to WebSockets, AI or LLM integrations, TypeScript, Next.js, Redis, AWS, or automated deployment pipelines will be valuable.
- The role suits an engineer who solves technical problems methodically, writes maintainable code, takes ownership of delivery, and can explain architecture decisions clearly.
- This is a hybrid, full-time employment opportunity based in Noida, with monthly compensation of ₹30,000 to ₹1,00,000 depending on skills and experience.

📌 Full-Stack MERN Developer (Noida)
🏢 Important Group
📍 Noida