Python backend developer, fullstack-capable

Novakid is an online English school for kids. The Visitor Squad owns the funnel from first visit to paid lesson: landing pages, registration and booking, blog, and the visitor's personal account. We track two key metrics, visitor → lead and visitor → booking, and test almost everything we ship through experiments. This is a backend-first role: about 70% backend (Python, some Node.js ) and 30% frontend (React/TypeScript).

• 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

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