Senior Full-Stack Engineer — AI-Driven, Remote Impact

Praktika.ai Company; Greater London; Hybrid; GBP 90,000 - 135,000; Full time

Benefits offered by this job

Equity (stock options)

26 days holiday

Annual off-site

Health benefits

AI toolkit access

Education budget

Fully remote

Job summary

Praktika is hiring a Senior Full-Stack Engineer to own all web-facing surfaces—marketing site, onboarding flows, customer portals, web app, and internal tools. You will shape product direction, run experiments, and ship features end-to-end to boost conversion and learner experience.

You will work with Product, Marketing, and Growth to optimize funnels, analytics, and A/B testing while building adaptive, mobile-first experiences across a distributed, async team.

Qualifications

• 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.
• Data-driven approach with proven experience in A/B testing, funnel optimization, and analytics.
• Ability to thrive in an async, distributed, written-first culture.

Responsibilities

• 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.

Skills

TypeScript

React

Node.js

Next.js

CSS-in-JS

Tailwind

Auth providers

Payments integrations

A/B testing

REST APIs

Analytics

UI/UX

Tools

Swagger

Google SSO

Stripe

PayPal

RevenueCat

LaunchDarkly

Flagsmith

Amplitude

Job description

Praktika is hiring a Senior Full-Stack Engineer to own all web-facing surfaces—marketing site, onboarding flows, customer portals, web app, and internal tools. You will shape product direction, run experiments, and ship features end-to-end to boost conversion and learner experience.

You will work with Product, Marketing, and Growth to optimize funnels, analytics, and A/B testing while building adaptive, mobile-first experiences across a distributed, async team.