Jobs → Engineering → Python Backend Engineer

About the Role Our client is looking for a Senior Python Backend Engineer to join the core backend team of a large-scale platform serving millions of users. Key Responsibilities • Design and implement RESTful APIs • Lead code reviews and mentor junior developers • Collaborate with product team on technical requirements • Troubleshoot production issues Requirements • 5+ years of hands-on Python Backend experience, with strong knowledge of Python 3.10+, Flask, Concurrency, Gevent and Non-blocking I/O • Strong experience with PostgreSQL, MongoDB, SQLAlchemy, database transactions, locking, and data migration (NoSQL to RDBMS) • Hands-on experience with Kafka, Elasticsearch, Celery, Redis, and asynchronous processing • Familiarity with Kubernetes, GCP and production troubleshooting • Proficient in AI coding tools such as Claude Code, Codex, Cursor or similar to support codebase analysis and code reviews • Strong code review mindset, focusing on logic, concurrency, data integrity, security and performance Nice to Have • Experience in Fintech, e-wallets, virtual currency, payment systems, social platforms or live streaming