Backend Developer - Python
First seen by Alion on Jul 23, 2026.
Job Summary:
We are looking for an experienced Backend Developer with strong expertise in Python and FastAPI to design and build scalable, secure, and high-performance backend systems. The ideal candidate will have hands-on experience in API development, database design, system architecture, and deploying highly available applications, preferably within fintech or regulated environments.
Job Description:
- Design, develop, and maintain backend services using Python and FastAPI.
- Build and manage secure, scalable RESTful APIs, WebSockets, and microservices.
- Design and optimize database schemas using PostgreSQL, MySQL, or MongoDB.
- Implement authentication, authorization, and secure coding practices aligned with compliance standards.
- Optimize system performance, reliability, and scalability.
- Write clean, well-documented code with unit and integration tests.
- Collaborate with Frontend, DevOps, QA, and Product teams in Agile sprints.
- Support deployment, monitoring, and troubleshooting of production systems.
Profile Description:
Must have:
- 5+ years of backend development experience.
- Strong proficiency in Python and FastAPI framework.
Additional qualifications:
- Experience building and managing REST APIs, WebSockets, or gRPC services.
- Strong knowledge of database design, query optimization, and ORM tools.
- Experience with asynchronous programming and scalable system design.
- Familiarity with microservices architecture and API lifecycle management.
- Understanding of CI/CD pipelines, Docker, and cloud deployment environments.
- Knowledge of secure coding practices (JWT, OAuth, encryption, etc.).
- Experience working in Agile/Scrum teams.
- Bachelors degree in Computer Science or related field preferred.
Role Details:
- Role: IT & Information Security - Other
- Industry Type: IT Services & Consulting
- Department: IT & Information Security
- Employment Type: Full Time, Permanent
- Role Category: IT & Information Security - Other
Education:
- UG: Any Graduate
Key Skills:
- Fast API, Rest Api, Backend Development, Python, Websocket, Postgresql, Database Design, Microservices, gRPC services, query optimization, ORM tool, microservices architecture, MySQL, MongoDB, asynchronous programming.
Skills
Python, FastAPI, RESTful API, WebSockets, Microservices Architecture