Backend Development Lead
First seen by Alion on Sep 1, 2026.
Role : Backend Development (NodeJS)
Responsibilities :
- Implement real-time streaming (WebSockets/SSE) for bidirectional client-server communication.
- Design event-driven architecture using Kafka for message streaming and asynchronous processing.
- Build high-performance REST APIs for conversation management, context persistence, and user interactions using modern frameworks.
- Integrate and manage AI APIs for chat and assistant features.
- Optimize streaming pipelines and handle concurrent requests at scale.
- Implement response handling, context management, and data validation.
- Write and optimize SQL queries for conversation history and user data (PostgreSQL).
- Cache frequently accessed data and session state using Redis.
- Write comprehensive unit tests and ensure code quality.
- Containerize with Docker and deploy to cloud platforms.
- Handle rate limiting, authentication, and security for API integrations.
Required Skills :
- 3+ years of Node.js and backend development.
- Expert TypeScript and JavaScript proficiency.
- Production experience with NestJS, HapiJS, or Fastify.
- PostgreSQL expertise with complex query optimization.
- Redis for caching and session management.
- Kafka for event streaming and message queue architecture.
- Real-time streaming (WebSockets and/or SSE).
- Unit testing and test-driven development experience.
- Experience building high-performance, scalable APIs.
- REST API design and asynchronous programming.
- Docker and cloud platform knowledge (AWS/GCP/Azure).
- Git and debugging expertise.
Skills
Node.js, Kafka, WebSockets, REST API, SQL, TypeScript, Javascript, NestJS, PostgreSQL, AWS