Senior Full-Stack Engineer - Praktika

Praktika is an AI-native education company on a mission to deliver efficient, engaging language learning to billions of people worldwide. We're bridging the gap between traditional learning apps and human tutors through a fully automated tutorship experience powered by generative AI avatars.

Since launching our mobile apps in 2023, we've grown to over 2 million monthly active users, become one of the world's top-4 learning apps, and recently closed a $30M Series A to accelerate our roadmap. We're a fully distributed team of ~50 people across 4 continents and 15+ countries, working asynchronously to ship fast and operate at a high bar.

We're hiring a Senior Full-Stack Engineer to own and evolve every web-facing surface at Praktika ; onboarding flows, landing pages, customer portals, our web app, and internal tools. This is a full-cycle product engineering role: you'll shape product direction, design and run experiments, ship features end-to-end, and measure their impact on conversion, retention, and learner experience.

You'll partner closely with Product, Marketing, and Growth, and your work will directly influence how tens of millions of learners discover and engage with Praktika .

What you'll do

Own the entire web stack: marketing site, onboarding funnels, customer portals, web app, and internal tools.

Lead architecture, development, experimentation, and operations across all web applications.

Drive product decisions: contribute to the vision, design and run A/B tests, analyze results, and iterate quickly.

Build adaptive, animated, mobile-first experiences that convert and delight users.

Integrate with backend services (via Swagger docs), authentication providers (Google/Apple SSO), and payment gateways (Stripe, PayPal, RevenueCat).

Set up and optimize analytics, tracking, and conversion funnels in collaboration with Growth and Marketing.

Ship production-ready code end-to-end; from idea through deployment to monitoring.

What we're looking for

We're looking for outstanding engineers who thrive in a challenging environment, bring a growth mindset, and operate with a high degree of agency, devotion, and autonomy.

Required

Product-first mindset: you think in user problems and business outcomes, not just code.

Extensive experience with TypeScript, React (hooks, context, state management), and Node.js.

Proficiency across modern full-stack tooling: Next.js (or equivalent), CSS-in-JS or Tailwind.

Hands-on experience integrating auth providers (Firebase, Auth0), payment systems (Stripe, RevenueCat, PayPal), feature-flag platforms (LaunchDarkly, Flagsmith), and analytics tools (Amplitude, PostHog).

Strong UI/UX sensibility; you care about animation, micro-interactions, and conversion details.

Comfortable working with RESTful APIs and collaborating closely with backend teams.

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