Senior MERN Stack Developer

Job Description

Experience : 4.00 + years Salary : INR 1000000-1200000 / year (based on experience) Shift : (GMT+05:30) Asia/Kolkata (IST) Opportunity Type : Office (Noida) Placement Type : Full time Permanent Position (*Note: This is a requirement for one of Uplers' client - Rannkly) What do you need for this opportunity? Must have skills required: MERN, MERN Stack, Mernstack Rannkly is Looking for: Job Description: Position: Senior MERN Stack Developer Company: Rannkly Location: Noida (Work from Office) Type: Full Time Experience: 5+ years Industry: SaaS / Startup About Us: We're an ambitious, fast growing SaaS startup building scalable products that help businesses grow. We’re looking for a Senior MERN Stack Developer who’s passionate about technology, cares deeply about user experience, and is ready to roll up their sleeves to build something meaningful from the ground up. What You’ll Be Doing: Building and scaling backend APIs using Node.js + Express and a MongoDB database. Developing modern, high performing user interfaces with React.js. Writing clean, testable, and maintainable code across the stack. Collaborating closely with product, design, and growth teams to ship features fast. Optimizing apps for performance, scalability, and security. Owning features end-to-end from design and development to deployment and monitoring. Jumping into DevOps, integrations, bug fixes, or customer support when needed typical startup energy! What We’re Looking For: 5+ years of professional experience with the MERN stack (MongoDB, Express, React, Node.js). Solid experience in both MySQL and MongoDB. Strong understanding of advanced SQL concepts like joins, subqueries, indexes, and aggregation functions. Deep knowledge of MongoDB aggregation pipelines, performance optimization, and schema design. Proficientin building RESTful APIs and modular Node.js applications using TypeScript. Page 1 of 2 Strong frontend skills with React.js, including component architecture, state management, and API integration. Hands-on experience with job queues (e.g., BullMQ/Redis), le processing, or real-time updates is highly valued Solid understanding of scalable system design and database architecture. Experience working in startups or SaaS environments you’re comfortable with ambiguity, tight feedback loops, and wearing many hats. A strong sense of ownership you care about what you build and the impact it has. Comfortable writing optimized and secure APIs, and debugging performance bottlenecks. Practical experience with caching, background jobs, API rate limits, pagination, etc. Knows how to deliver fast without compromising on code quality, testing, or best practices. Good communicator who can explain complex ideas clearly to non-technical teammates. Experience with Puppeteer or browser automation is a plus but not required, but helpful for some of our upcoming use cases. Bonus Points: Experience with TypeScript. Familiarity with Redis, Docker. Worked on multi-tenant SaaS, billing systems (e.g. Stripe), or feature flags. Comfortable with automated testing and test-driven development (Jest, Cypress). Previous exposure to analytics, monitoring, or error tracking tools like Sentry or Datadog. What You’ll Get: Freedom to work on meaningful projects with high autonomy. A team that values shipping, learning, and growing together. A startup environment where your contributions directly influence success. Flexible hours and remote-friendly culture. Opportunities to expand your skills across areas beyond just development. Sound like a good fit? We’d love to hear from you. Whether you're building side projects or scaling production apps if you’re excited about startups and solving real problems with code, let’s talk. How to apply for this opportunity? Step 1: Click On Apply! And Register or Login on our portal. Step 2: Complete the Screening Form & Upload updated Resume Step 3: Increase your chances to get shortlisted & meet the client for the Interview! About Uplers: Our goal is to make hiring reliable, simple, and fast. Our role will be to help all our talents find and apply for relevant contractual onsite opportunities and progress in their career. We will support any grievances or challenges you may face during the engagement. (Note: There are many more opportunities apart from this on the portal. Depending on the assessments you clear, you can apply for them as well). So, if you are ready for a new challenge, a great work environment, and an opportunity to take your career to the next level, don't hesitate to apply today. We are waiting for you! Show more Show less