Experience: 8–10 Years
Employment Type: Full-Time
Location: On-site / Jaipur

About the Role
We are looking for a Senior Backend Engineer with 8–10 years of strong hands-on experience in Node.js to design, build, and scale high-performance backend systems. The ideal candidate should have solid expertise in API development, databases, distributed systems, microservices, and production-level system design.

This is a hands-on engineering role for someone who can take ownership of backend architecture, solve complex technical problems, and build reliable systems at scale.

Key Responsibilities

Design and develop scalable backend services and REST APIs using Node.js.
Build high-performance applications using Express.js/NestJS and TypeScript.
Design database schemas and optimize queries across MongoDB and PostgreSQL/MySQL.
Work with Redis for caching, concurrency, and performance optimization.
Design and implement microservices and event-driven architectures.
Work with Kafka/RabbitMQ for asynchronous processing and inter-service communication.




Build real-time systems using WebSockets/Socket.io where required.
Handle authentication, authorization, RBAC, API security, and data protection.
Identify and resolve performance bottlenecks, memory issues, and production-level challenges.
Design systems capable of handling high concurrency and large data volumes.
Take ownership of backend architecture, technical decisions, development, testing, and production support.
Collaborate with frontend, QA, DevOps, and product teams to deliver reliable solutions.
Conduct code reviews and mentor junior/mid-level developers.
Contribute to technical documentation, coding standards, and engineering best practices.

Required Skills & Experience

8–10 years of professional backend/software development experience.
6+ years of strong hands-on experience with Node.js.
Strong proficiency in JavaScript/TypeScript.
Strong experience with Express.js and/or NestJS.
Excellent understanding of REST API

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🏢 Cognitive Nest Tech Solutions
📍 Jaipur