Python Backend Developer

Senior Python Backend Developer at Novakid Inc, remote, full-time, $4000/month. Build and maintain Python services and APIs, integrate ad platforms, ensure reliability.

Design, build and maintain Python services and APIs behind the funnel: registration, booking and the visitor account. Build and own server-side integrations with ad platforms (Meta CAPI, TikTok Events API and similar): event delivery, deduplication, retries and monitoring. Own attribution on the backend: end-to-end visit tracking, UTM persistence, and diagnosing gaps in V2L/V2B data. Keep services fast and reliable: caching, query optimization, debugging server-side rendering in our Node.js/Express layer. Investigate production incidents through Sentry and see them through to resolution. Support A/B testing on the server side: feature flags, rollouts, and cleanup after experiments. Ship frontend changes in React/TypeScript when a feature needs it.

5+ years of production backend development in Python, including services you designed, shipped and supported in production yourself. Strong backend fundamentals: API design, relational databases and SQL, caching, background jobs, and integrating third-party APIs (auth, rate limits, retries, idempotency). Production debugging experience: logs, error tracking, finding the root cause of an issue. Node.js: comfortable reading and changing an Express service. Working frontend skills: enough TypeScript and React to deliver a feature end-to-end. Expert level not required. An understanding of how tracking data travels from click to report, and the ability to find where it gets lost. Product mindset: you work with metrics and hypotheses, not just tickets. Fluent English.

Salary from $4000 per month, full-time, schedule 5/2, remote work.