Novakid is an online English school for kids. The Visitor Squad is responsible for the funnel from the first visit to the paid lesson: landing pages, registration and booking, blog, and the visitor’s personal account. We measure our performance using two key metrics—visitor → lead and visitor → booking—and validate almost everything we do through experimentation.A core role within the team: approximately 70% frontend and 30% backend. Your area of responsibility includes the visitor’s personal account, attribution and funnel tracking, server-side integrations with ad platforms, and supporting experiments. You will work within the squad's processes: planning, grooming, code reviews, sprints, and releases.Key Responsibilities Develop and maintain the visitor’s personal account and parts of the funnel from landing pages to booked lessons Own attribution: end-to-end visit tracking chains, UTM parameters, and diagnosing gaps in V2L/V2B tracking Build server-side integrations with ad platforms (e.g., Meta CAPI, TikTok Events API, and similar) Write and debug backend code in Python/Node: endpoints, caching, and server-side rendering Support A/B testing: rollouts, feature flags, and post-experiment code cleanup Investigate production incidents via Sentry and drive them through to resolution Monitor and optimize public page speed: Core Web Vitals Requirements 3+ years of production experience with TypeScript and React Python and Node.js: ability to work independently on the backend—endpoints, caching, SSR debugging—beyond just a thin BFF (Backend-For-Frontend) layer Experience with analytics and tracking: GTM, event tracking, server-side conversion delivery. Understanding how data travels from click to report, and the ability to locate data leaks/loss Product mindset: working with metrics and hypotheses rather than just closing tickets English proficiency Nice to Have GDPR and consent mechanism implementation on public pages Headless WordPress End-to-end testing with Playwright or Cypress SQL and BigQuery—ability to self-verify hypotheses using data CDN and edge caching (CloudFront or similar) Hands-on experience with Sentry and handling production errors Our Tech StackTypeScript, React, Python, Next.js, Node.js, Express with server-side rendering via Pug, Sass and PostCSS, Vite and Gulp, MUI and an in-house design system in Storybook, Vitest, Jest, Cypress, and Playwright for E2E testing.What we offer: Fully remote work. A chance to shape the future of AI-driven education. A fun, dynamic team that loves building innovative products. Unlimited holidays – because we trust you to deliver. Originally posted on Himalayas