We are seeking a Node.js Backend Developer with 4-7 years of experience to design, develop, and maintain secure, scalable backend applications and RESTful APIs. The ideal candidate will have strong expertise in , , MongoDB, and Java Script.

Key Responsibilities

- Design, develop, and enhance backend services using , Java Script, and

- Own the design and maintenance of secure, scalable REST APIs and middleware.

- Model and manage data using MongoDB and Mongoose (schemas, indexes, queries, transactions).

- Implement and maintain authentication/authorization with JWT, secure cookies, sessions, roles, and permissions.

- Enforce secure coding practices: validation, error handling, logging, audit trails, and consistent API responses.

- Integrate with internal/external systems using Axios/HTTP clients, TLS/SSL, and API gateways (, Azure API Management).

- Handle secure file upload/download flows (Busboy, MongoDB GridFS) with proper validation and sanitization.

- Write and maintain unit and integration tests using Jest; help improve test coverage and reliability.

- Collaborate with Dev Ops teams on CI/CD pipelines (Jenkins, Git, Artifactory, Sonar Qube, Fortify, Black Duck).





- Incrementally refactor and modernize legacy code while preserving business functionality.

Mandatory Technical Skills & Experience:

·Strong hands-on experience with and modern asynchronous Java Script (Promises, async/await).

·Deep experience with (routing, middleware, validation, centralized error handling).

·Proven track record building and consuming RESTful APIs in production environments.

·Practical, hands-on experience with MongoDB and Mongoose.

·Experience implementing JWT-based authentication and role-based access control.

·Positive understanding of web security: secure cookies, session management, CSRF, CORS, token lifecycle, and common vulnerabilities (OWASP).

·Experience integrating downstream APIs using Axios or similar HTTP clients.

·Experience with TLS/SSL certificates, timeouts, resilience patterns, and troubleshooting service-to-service communication.

·Experience writing unit tests with Jest, including mocks and async test cases.

·Working knowledge of Git workflows and CI/CD pipelines.

📌 Node Developer (India)
🏢 Kumaran Systems
📍 India