We’re looking for a Backend Developer who can take ownership of our backend systems and help us build, maintain, and scale reliable production applications.

You’ll work across APIs, databases, real-time communication, payments, deployments, monitoring, and performance optimization. We’re looking for someone who is comfortable owning backend problems end-to-end rather than only working on isolated tickets.

What You’ll Do
Build, maintain, and optimize Node.js + Express backend services
Design and develop scalable REST APIs
Design and manage MongoDB / Mongoose schemas
Build and maintain WebSocket / Socket.io based real-time features
Integrate and maintain payment gateways such as Razorpay, Cashfree, PhonePe, or similar providers
Build reliable transaction, wallet, ledger, and payout-related backend flows
Work with Redis for caching, queues, and background processing
Monitor production servers, logs, application health, and system performance
Set up alerts and help respond to production incidents
Identify performance bottlenecks and optimize APIs, databases, and backend services




Manage deployments and basic production infrastructure
Improve backend reliability, scalability, security, and error handling
Debug and resolve production issues independently
Work closely with frontend and product teams to ship features end-to-end

Must Have
1+ years of hands-on Node.js backend development experience
Solid knowledge of Node.js and Express.js
Strong understanding of MongoDB and Mongoose
Good understanding of REST API design and backend architecture
Hands-on experience with WebSockets / Socket.io
Experience integrating payment gateways
Understanding of authentication, authorization, validations, and API security
Basic DevOps knowledge including deployments, server logs, restarts, and production debugging
Strong debugging and problem-solving skills
Ability to understand and work with an existing production codebase

Good to Have
Experience with Redis for caching or job queues
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📌 Back End Developer (Noida)
🏢 ChatSpark
📍 Noida