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We are looking for a smart, agile, and hands-on Sr. MERN Developer who will play a key role in building, scaling, and supporting MERN-based applications. The role requires robust technical expertise along with the ability to understand business requirements and communicate effectively with customers and internal stakeholders. What Youll Be Doing Build, enhance, and maintain full-stack applications using the MERN stack (Node.js, React.js, Next.js, MongoDB). Work on both backend and frontend with strong attention to performance, scalability, and clean architecture. Translate business requirements into scalable technical solutions in collaboration with Project Managers and Solution teams. Participate in customer discussions to provide technical clarity, solution recommendations, and feasibility checks. Design effective data models and optimize applications dealing with large datasets and high data volumes. Propose and implement microservices-based architectures where relevant. Integrate third-party APIs and services (REST / GraphQL). Act as the primary technical point of contact for MERN-related issues, troubleshooting, and guidance. Review code, support junior developers, and ensure adherence to best practices in development. Use AI-assisted tools to improve development speed, code quality, and problem-solving. What Wed Love To See 5+ years of hands-on experience working across the MERN stack. Strong expertise in Node.js, React.js, Next.js, Express.js. Deep understanding of MongoDB, especially data modeling for large-scale applications. Solid JavaScript fundamentals (ES6+) and ability to work across frontend and backend. Experience building and consuming RESTful APIs and GraphQL endpoints. Exposure to microservices architecture and scalable system design. Familiarity with Git, version control practices, and CI/CD workflows. Ability to understand business context and make informed technical decisions. Excellent communication .
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Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.