Role Overview :

We are looking for an experienced Senior Backend Engineer (Node.js) to join our dynamic team. You will be responsible for designing, building, and maintaining scalable, secure, and high-performance backend systems. The role involves working closely with product and front-end teams to deliver reliable APIs and services, with exposure to cloud infrastructure, distributed systems, and modern development practices.

Key Responsibilities :

- Design, develop, and maintain robust server-side applications using Node.js.

- Build and maintain scalable, low-latency RESTful APIs.

- Design systems for high availability, performance, and reliability.

- Work with databases such as PostgreSQL, MongoDB, and Redis.

- Implement authentication, authorization, and data security best practices.

- Optimize backend services for performance, scalability, and cost efficiency.

- Integrate with third-party services and APIs (e.g., messaging, email, payments).

- Collaborate with product, front-end, and QA teams to understand and deliver requirements.

- Participate in code reviews, technical discussions, and documentation.

- Write and maintain unit, integration, and end-to-end tests.

- Work with CI/CD pipelines and containerized environments using Docker.

- Collaborate with platform/DevOps teams on cloud deployments and Kubernetes-based systems.

- Implement and work with message queues and streaming systems such as RabbitMQ, Kafka, AWS SQS/SNS, or Azure Service Bus.

- Support real-time features using Web-Sockets or event-driven architectures.

Qualifications & Skills :

- 5 to 7 years of backend development experience, with strong recent experience in Node.js.

- Deep understanding of Node.js core concepts, asynchronous programming, and event-driven architecture.

- Hands-on experience with Node.js frameworks such as Express.js (or similar).

- Strong experience in API design, microservices, and inter-service communication.

- Proficiency in SQL and NoSQL databases and data modelling.

- Experience with authentication and authorization mechanisms (JWT, OAuth, etc.).

- Familiarity with security best practices, including encryption at rest and in transit, and OWASP guidelines.

- Experience profiling and optimizing backend services and database queries.

- Hands-on testing experience using Jest or Mocha/Chai.

- Exposure to cloud platforms such as AWS or Azure.

- Experience with real-time systems and messaging/event-driven architectures.

- Familiarity with blockchain-based systems or crypto platforms is a plus.

- Strong problem-solving, communication, and collaboration skills.

Education :

- Bachelors or Masters degree in Computer Science or a related field, or equivalent practical experience.

Preferred Experience :

- Experience in FinTech, Banking, or Payments, especially high-scale or regulated systems.

- Exposure to blockchain or crypto platforms.

- Experience working in high-traffic, distributed systems.