Design, build, and maintain high-performance Python microservices (FastAPI, AsyncIO)
Analyze legacy systems and extract business logic into modern architectures
Refactor and migrate existing modules into clean, scalable, and maintainable services
Ensure system reliability through idempotency, fault tolerance, and robust error handling
Design and integrate external APIs, handling edge cases, retries, and failures
Implement and manage webhooks, callbacks, and complex retry mechanisms
Write high-quality unit and integration tests
Collaborate with cross-functional teams to ensure service stability and performance
Contribute to architectural discussions and continuous system improvements
Take ownership of services end-to-end, from design to production

5+ years of backend development experience with strong Python expertise
Deep knowledge of AsyncIO and FastAPI
Experience building non-blocking, high-reliability microservices
Strong experience with relational databases (MySQL, PostgreSQL)
Solid understanding of API design and third-party integrations
Experience implementing webhooks, callbacks, and retry strategies
Strong testing practices (unit and integration testing)
Ability to work with legacy systems and migrate them into modern architectures
Strong analytical and problem-solving skills
Ownership mindset and ability to work autonomously within a defined architecture

Senior Backend Developer – Services

Key skills