Senior Python Backend Developer (FastAPI)

Senior Python Backend Developer (FastAPI) for Production Mobile App About the Project We are building a production-ready mobile application with a separate admin CRM. The frontend is already designed in Figma , and development is in progress. We are looking for an experienced backend developer who can build a scalable, secure, and well-documented backend. This is a long-term project, and we are looking for someone who can take ownership of backend architecture and deliver production-quality code. Tech Stack Python FastAPI PostgreSQL Firebase (Authentication, Push Notifications) AWS REST APIs JWT Authentication Git & GitHub Responsibilities Design and develop scalable REST APIs using FastAPI. Build secure authentication and authorization. Design an optimized PostgreSQL database. Integrate Firebase Authentication and Notifications. Implement role-based access control. Develop APIs for the mobile application and admin CRM. Optimize API performance and database queries. Write clean, modular, and maintainable code. Provide complete API documentation (Swagger/OpenAPI). Coordinate with the Flutter frontend developer for API integration. Fix bugs and improve backend performance. Mandatory Requirements 4+ years of Python backend development experience. Strong expertise in FastAPI. Excellent PostgreSQL database design skills. Experience deploying applications on AWS. Knowledge of API security best practices. Git version control experience. Ability to write clean and reusable code. Good communication skills in English. Nice to Have Docker Redis Celery CI/CD GraphQL WebSockets Background Jobs Firebase Cloud Functions Deliverables Production-ready backend. Well-structured project architecture. Database schema documentation. Swagger/OpenAPI documentation. Postman Collection. Environment setup guide. Deployment documentation. Complete source code pushed to GitHub. Code Quality Requirements Modular architecture Proper exception handling Input validation Logging Secure password handling SQL injection protection Rate limiting JWT token security Environment variables Unit testing where applicable Handover Requirements Before project completion, the developer must provide: Full source code. GitHub repository transfer. Database schema. API documentation. Deployment guide. Environment configuration documentation. Third-party service credentials list. Knowledge transfer session.