Nineleaps - Software Development Engineer - Node.js

About the Role :

We're looking for a highly skilled and self-driven Node.js Software Development Engineer to join our team. You'll be responsible for building scalable backend services and APIs that power our products, with a focus on performance, security, and reliability.You're expected to take ownership of features end-to-end, mentor junior developers when needed, and contribute to architectural discussions.

Key Responsibilities :

- Design, build, and maintain RESTful, gRPC and/or GraphQL APIs using Node.js

- Write clean, modular, and testable code

- Collaborate closely with product managers, frontend engineers, and DevOps

- Optimize existing codebases for performance and scalability

- Integrate with third-party services and internal microservices

- Participate in code reviews and ensure coding best practices are followed

- Write unit and integration tests (e.g., using Jest, Mocha, etc.)

Required Skills & Experience :

- 3-5 years of experience building production-grade backend applications

- Strong proficiency in Node.js (Express.js, NestJS, or similar frameworks)

- Solid understanding of JavaScript/TypeScript

- Experience with MongoDB, PostgreSQL, or MySQL

- Experience building APIs that scale - rate limiting, caching, pagination, etc.

- Good understanding of async patterns (Promises, async/await, queues)

- Familiarity with CI/CD, Git workflows, and containerized deployments (Docker)

- Experience working with cloud services (AWS/GCP/Azure)

Nice to Have :

- Experience with microservices architecture

- Familiarity with message brokers (Kafka, RabbitMQ, etc.)

- Experience working in Agile or Scrum teams

- Contributions to open-source or tech blogs