Senior Full-Stack Engineer - Remote

Overview

At Praktika, we are building the best AI tutors to teach millions of students new languages. Since we launched our mobile apps in 2023, we have gained over 2 million MAU, become one of the world's top-4 learning apps, and are aiming to lead the AI revolution in education and become the solution of choice for contemporary language learners. We’ve secured our $30 million Series A funding and are scaling the team to run faster!

In Short

• Own the entire web stack — main website, onboarding funnels, customer portals, web app, and internal tools.
• Lead architecture, development, experiments and operations for all web applications.
• Drive product decisions: dive into the product vision, run A/B tests, analyze results, and iterate fast.
• Build adaptive, animated, mobile-first experiences that convert and delight users.
• Integrate with backend services (using 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 to deployment to monitoring.

Requirements

• Product mindset first: you think in user problems and business outcomes, not just code.
• Extensive experience with Typescript, React (hooks, context, state management) and Node.js.
• Proficiency with modern full-stack tooling: TypeScript, Next.js or similar, 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/marketing tools (Amplitude, Posthog).
• Strong sense of UI/UX — you care about animations, micro-interactions, and conversion details.
• Comfortable working with RESTful APIs and collaborating with backend teams.
• Data-driven approach: experience with A/B testing, funnel optimization, and analytics tools.
• Bonus: Portfolio showcasing high-quality web projects and successful conversion experiments.

Benefits

• Equity that grows with your impact: Equity growth via stock options.
• 26 days of holidays plus bank holidays. (34 days per year).
• Yearly off-sites: Last year was in Dubai!
• Health and wellness benefits to support your overall well-being through Safetywing.
• Access to an AI toolkit, including Claude, Cursor, Codex, and other productivity tools.
• Annual educational budget of up to $1,000.