Back End Developer

Job Description – Backend Developer (Node.js API)

Experience :  5–8 Years

Location :  Delhi / NCR (On-site)

Role Type :  Full-time

About the Role We are looking for a strong Backend Developer with hands-on experience in building scalable APIs using Node.js. The role requires deep understanding of databases, microservice architecture, and cloud infrastructure. You will work closely with cross-functional teams to build robust backend services, optimize performance, and ensure end-to-end reliability across systems.

Key Responsibilities Build, maintain, and optimize  Node.js APIs  for high-performance applications.

Design and manage  microservices  with clean service boundaries and reusable components.

Work with multiple databases including  PostgreSQL, MongoDB, and MySQL .

Integrate and maintain  payment gateways  (Razorpay / Stripe / Paytm or similar).

Implement secure, scalable, and modular backend architecture.

Manage deployments and infrastructure on  AWS and GCP .

Ensure CI / CD workflows, version control, and code quality using  Git .

Improve system performance through monitoring, tuning, and load testing.

Collaborate with frontend, product, and QA teams for seamless integrations.

Write clear technical documentation and maintain API specifications.

Required Skills & Experience 5–8 years of hands-on backend development experience.

Strong proficiency in  Node.js , Express.js / Nest.js or similar frameworks.

Solid understanding of  REST APIs , microservice patterns, and service orchestration.

Expertise in at least two databases :   Postgres, MySQL, MongoDB .

Experience integrating  payment gateways  and handling secure payment flows.

Strong understanding of  cloud environments  (AWS / GCP) and DevOps basics.

Hands-on experience with  Git , branching strategies, and code reviews.

Familiarity with caching (Redis / Memcached) and message queues (Kafka / RabbitMQ) is a plus.

Understanding of security best practices : authentication, authorization, token management, rate limiting, etc.

Ability to write clean, modular, maintainable code.

Nice to Have Experience with  Docker, Kubernetes , or containerized deployments.

Exposure to  serverless architecture  (AWS Lambda, Cloud Functions).

Knowledge of monitoring tools (Grafana, Prometheus, New Relic).

Understanding of data pipelines or analytics workflows.

Who You Are Analytical and detail oriented.

Comfortable working in fast-paced, product-driven environments.

Strong problem solver with a collaborative mindset.

Passionate about building scalable systems and clean architecture.