Python Backend Developer, Fullstack-capable (EdTech)

Location: Remote from Serbia

Salary: From $4,000 net per month

Company

Novakid is an online English school for children building AI-driven education products.

What you will do

• Design, build, and maintain Python services and APIs for registration, booking, and visitor accounts.
• Develop server-side integrations with advertising platforms, including event delivery, deduplication, retries, and monitoring.
• Own backend attribution, including visit tracking, UTM persistence, and investigation of gaps in visitor-to-lead and visitor-to-booking data.
• Improve service speed and reliability through caching, query optimization, production debugging, and server-side rendering maintenance in Node.js/Express.
• Support server-side A/B testing with feature flags, rollouts, and experiment cleanup.
• Deliver frontend changes in React and TypeScript when features require end-to-end implementation.

Requirements

• 5+ years of production backend development in Python, including independently designed, shipped, and supported services.
• Strong fundamentals in API design, relational databases, SQL, caching, background jobs, and third-party API integrations.
• Production debugging experience with logs, error tracking, and root-cause analysis.
• Ability to read and modify Node.js/Express services and deliver features with TypeScript and React.
• Understanding of tracking data flows from click to report and the ability to locate data loss.
• Fluent English required.

Nice to have

• Experience with server-side conversion tracking, including CAPI, Events API, or server-side GTM.
• BigQuery experience for validating hypotheses with data.
• CDN and edge caching experience, including CloudFront or similar technologies.
• Knowledge of GDPR and consent mechanisms.
• End-to-end testing experience with Playwright or Cypress.

Culture & Benefits

• Fully remote work.
• Opportunity to contribute to AI-driven education.
• Dynamic product team focused on building innovative products.
• Unlimited holidays.