Backend Developer – Python / Fast API
Confirmed on the employer's own hiring board on Nov 14, 2026. First seen by Alion on Nov 10, 2026.
Location: Pune
Experience: 5-7 Years
Openings: 1
About the Role
We are seeking a Backend Developer with strong experience in Python and FastAPI to build scalable, high-performance backend systems. The role focuses on developing RESTful APIs, working with PostgreSQL, implementing secure backend services, and supporting production-ready applications. The candidate will collaborate with frontend, product, and DevOps teams.
Job Description
The role involves designing and developing backend services and business logic using Python and FastAPI, with an emphasis on asynchronous programming, API validation, authentication, and reliable application performance. The developer will work extensively with PostgreSQL and SQL, including query optimization, indexing, transactions, and JSON/JSONB data.
The position also involves automated testing, Docker-based deployments, CI/CD pipelines, troubleshooting, logging, debugging, and monitoring. The developer will contribute to production deployments and continuous improvements to backend performance and reliability.
Key Responsibilities
- Design and develop RESTful APIs using FastAPI.
- Build backend services and implement business logic using Python.
- Develop and optimize PostgreSQL queries and database operations.
- Implement authentication, authorization, validation, and secure API practices.
- Write and maintain unit and integration tests using tools such as Pytest.
- Support Docker, CI/CD pipelines, and production deployments.
- Troubleshoot backend issues and improve application performance.
- Collaborate with frontend, product, and DevOps teams.
Required Skills
- Python
- FastAPI
- Python 3.8
- Async programming and Pydantic
- REST API development
- API documentation, middleware, and exception handling
- PostgreSQL and SQL
- Indexing, transactions, JSON/JSONB, and query optimization
- Git, Docker, and CI/CD
- JWT/OAuth authentication
- Pytest
- Logging, debugging, and monitoring
Preferred / Good to Have
- Redis or other caching solutions
- Message queues such as Kafka, RabbitMQ, or Celery
- Microservices experience
- Cloud platforms such as AWS, Azure, or GCP
- Kubernetes or container orchestration
- Observability tools such as Grafana, Prometheus, or ELK
Mandatory Skills
- Python
Candidate Profile
The ideal candidate will have backend development experience with strong hands-on expertise in Python, FastAPI, and PostgreSQL. The candidate should be comfortable developing production-ready APIs, troubleshooting performance issues, writing automated tests, and working collaboratively with product, frontend, and DevOps teams.
Benefits Package
- Competitive salary and benefits package
- Opportunities for professional growth and development
- A collaborative and inclusive work environment
- The opportunity to work on exciting and challenging projects with leading clients