FullStack Developer Frontend Focus (Remote)

Novakid·Serbia·Удалённо·вчера

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

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 Stack

TypeScript, 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: