Senior Backend Developer - Node.js/NestJS
First seen by Alion on Oct 22, 2026.
Role & responsibilities :
- Take end-to-end ownership of backend services, from requirements gathering and system design to deployment and production support.
- Design and develop scalable, secure, and maintainable backend applications using Node.js and NestJS.
- Architect and implement microservices-based systems and distributed applications.
- Design efficient database schemas and optimize application performance for scale.
- Build and maintain RESTful APIs and asynchronous workflows.
- Translate business requirements into robust and scalable technical solutions.
- Ensure application reliability, performance, and security through industry best practices.
- Implement monitoring, logging, and observability solutions to proactively identify and resolve issues.
- Troubleshoot production incidents, perform root cause analysis, and implement preventive measures.
- Drive engineering best practices, code quality standards, and architectural discussions.
- Conduct code reviews and mentor fellow engineers to maintain high development standards.
- Collaborate closely with product, frontend, QA, and DevOps teams to deliver high-quality solutions.
Preferred candidate profile :
- Strong expertise in Node.js and NestJS.
- Extensive experience with TypeORM.
- Strong knowledge of MySQL, including database design, query optimization, indexing strategies, and performance tuning.
- Experience working with NoSQL (MongoDB, etc).
- Strong understanding of System Design principles and distributed systems.
- Hands-on experience designing and building Microservices Architectures.
- Experience building and operating scalable, high-performance applications.
- Hands-on experience with AWS (EC2, S3, SES, SQS, RDS).
- Experience with monitoring and observability tools (ELK Stack, Grafana).
- Hands-on experience with Docker and containerized deployments.
- Strong understanding and practical implementation of SOLID Principles, Design Patterns, and Clean Architecture.
- Strong understanding of RESTful API design principles.
- Experience with Git and collaborative development workflows.
- Ability to independently drive projects and take ownership of backend systems.
- Experience operating and maintaining production systems (performance optimization, observability, troubleshooting, reliability engineering, incident resolution).
Preferred Qualifications :
- Experience with Redis and caching strategies.
- Experience with event-driven architectures and messaging systems (Kafka, RabbitMQ, Advanced SQS).
- Experience setting up and maintaining CI/CD pipelines.
- Familiarity with Infrastructure as Code (Terraform).
- Exposure to Kubernetes and container orchestration.
- Experience working in startup or fast-paced product environments.
- Good to have : AI assisted coding, Python, Agentic AI.
Skills
Node.js, NestJS, MySQL, AWS, Microservices Architecture, RESTful API, ORM, System Design, Kafka, RabbitMQ