MERN Fullstack Developer

Not specified · FULL TIME

Compensation: ₹30,000 – ₹35,000/month

5 openings

Posted 13 Nov 2026

About the role

optimumindia is a Delhi-based web technology company building modern, scalable digital products for clients across the web. We are looking for a MERN Fullstack Developer to join our small, fast-moving Engineering team and take ownership of features from the first database schema through to the final pixel in production. In this role you will work across the entire stack — modelling data in MongoDB, building RESTful services with Express.js and Node.js, and crafting responsive, component-driven interfaces in React. Because we are a tight-knit team of under ten people, your work will be highly visible: you will ship code every week, see your features go live, and have a direct influence on architecture and product decisions rather than waiting on layers of approval. You will collaborate closely with designers, other developers, and stakeholders to turn requirements into clean, reliable, maintainable software. This is an excellent opportunity for a developer who wants breadth over narrow specialisation — someone who enjoys solving problems end to end, values clean code and clear communication, and is eager to grow quickly in a startup environment where initiative is rewarded. If building real web applications with the MERN stack excites you, we would love to hear from you. About the Company: optimumindia is a Delhi-based web technology company that builds and delivers modern web applications for its clients. As a small, close-knit team, it offers developers direct ownership, fast feedback loops, and the chance to work across the full stack rather than on a narrow slice of the product. The company focuses on practical, well-built web solutions and on growing its engineers alongside the business. Responsibilities: • Design, build, and maintain full-stack web applications using MongoDB, Express.js, React, and Node.js, covering both client-side interfaces and server-side APIs. • Develop RESTful APIs in Node.js/Express.js and integrate them with React front ends, including authentication and authorisation flows such as those built with JWT. • Model and query application data in MongoDB using Mongoose, including schema design, indexing, and performance-conscious data access. • Build responsive, reusable, and accessible UI components in React with HTML, CSS, and modern JavaScript or TypeScript, managing state with tools such as Redux. • Write clean, well-documented, and testable code, and participate in code reviews using Git and GitHub within an Agile workflow. • Debug and troubleshoot issues across the stack, from browser rendering and network/API integration through to server-side logic and database queries. • Integrate third-party services and APIs, handle JSON data exchange, and manage dependencies with npm. • Collaborate with designers, fellow developers, and stakeholders to refine requirements, estimate work, and deliver features on schedule. Qualifications: • Strong hands-on experience with the MERN stack: MongoDB, Express.js, React, and Node.js. • Proficiency in JavaScript, with solid understanding of ES6+ features, async programming, and the event loop. • Solid command of HTML and CSS, including responsive layouts and cross-browser compatibility. • Proven experience designing and consuming REST APIs, including handling requests, responses, and error states. • Working knowledge of Git and GitHub for version control, branching, and collaborative code review. • Experience with MongoDB data modelling and querying, preferably using Mongoose. • Familiarity with package management using npm and typical Node.js project tooling. • Strong problem-solving mindset and the ability to debug issues independently across front end and back end. • Good communication and team collaboration skills, with comfort working in a small, fast-paced team. • Understanding of authentication concepts such as JWT and secure handling of JSON-based data. • Exposure to Agile development practices, including sprints, stand-ups, and iterative delivery. • A portfolio, GitHub profile, or examples of shipped web applications demonstrating your MERN work. Benefits: • Competitive monthly salary of ₹30,000 – ₹35,000 based on skill and experience. • Direct mentorship and hands-on exposure to the full product lifecycle in a small, senior-accessible team. • Rapid learning and ownership: your work ships to real users and shapes the product. • Flexible working arrangements with a supportive, collaborative team culture. • Opportunity to expand into architecture, DevOps, or technical leadership as the team grows. • Exposure to a wide range of client projects and modern web technologies. • Informal, low-bureaucracy environment where initiative and new ideas are actively encouraged.

Requirements

MongoDB, Express.js, React, Node.js, JavaScript, TypeScript, HTML, CSS, REST APIs, Redux, Git, GitHub, npm, Mongoose, JWT, JSON, Agile, Problem solving, Team collaboration, Communication, Debugging, API integration

About optimumindia

this is a web based company