Frontend Product Engineer (React + TypeScript)

Warsaw
Engineering – Performance /
B2B /
On-site
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Location: Warsaw, Poland - Hybrid (4 days on-site / 1 day remote)
Contract: B2B · 25-40 k PLN net / month + RSUs

Why Fresha & Why Now?

Fresha is re-imagining how the global beauty and wellness industry runs. 120k+ businesses, 450k+ professionals, millions of clients, and 1 billion+ appointments already rely on our platform for everything from bookings to payments.

Join us at a moment of rapid scale - your work will surface on screens around the world within days, not quarters.

What You’ll Do

* Own and evolve our core booking & scheduling engine - the heartbeat of Fresha - ensuring it scales smoothly and delivers seamless experiences for millions.
* Design, build, and ship new user-facing features in React + TypeScript, reaching millions of professionals and clients.
* Own features end-to-end: discovery, technical design, implementation, testing, rollout, and observability.
* Tap into (and extend) our Design System to ship polished UI quickly while raising the bar for consistency.
* Write robust automated tests (Cypress, Jest, React Testing Library) and keep the CI/CD pipeline green.
* Partner closely with Product, Design, Backend, Infrastructure, and Mobile engineers to take features from discovery to rollout and beyond.
* Accelerate with AI: harness AI agents, LLM-powered coding tools, and access to a wide range of AI tools (e.g., chatbots, dev assistants).
* Curious about backend, DevOps, or mobile? Great - we’ll support you in exploring any part of the stack.

What We’re Looking For

    • Deep expertise in modern React & TypeScript, with a track record of shipping large-scale, consumer-facing web apps.
    • Solid grasp of GraphQL (Apollo or urql) and REST fundamentals.
    • Experience working with design systems.
    • Fluency in web performance, cross-browser, and responsive design best practices.
    • A testing mindset and familiarity with JS/TS testing frameworks.

      • Don’t meet every single requirement? Passion and potential matter more than perfect check-boxes. If this role excites you, apply today and grow with us!

Why You’ll Love It Here

    • Direct impact & ownership - your decisions shape the product.
    • Modern tech stack, continuous learning, and innovation.
    • Competitive salary, equity, private healthcare, and more.

Our Technology Stack - Frontend Technologies

    • React - Modern JavaScript UI library
    • TypeScript - Strongly typed JavaScript
    • React Router DOM - Client-side routing
    • React Redux - State management
    • Zustand - Lightweight state management
    • Formik - Form management

Build Tools & Bundlers

    • Rsbuild - Modern build tool (Rspack-based)
    • esbuild - Fast JavaScript bundler
    • Turbo - High-performance build system
    • SWC - Rust-based JavaScript compiler

UI & Design System

    • Fresha Design System - Custom design system
    • Sass/SCSS - CSS preprocessor
    • PostCSS - CSS transformation
    • Lottie - Animations

State Management & Data Fetching

    • Redux with Redux Actions
    • URQL - GraphQL client

Backend Communication

    • GraphQL - API query language
    • GraphQL Code Generator - Type-safe GraphQL
    • Phoenix - Real-time WebSocket channels
    • WebSocket & Server-Sent Events support

Backend Technologies

    • Node.js
    • TypeScript
    • Elixir
    • Ruby on Rails
    • PostgreSQL
    • Redis
    • Docker
    • Kubernetes
    • NginxAWS

Testing Framework

    • Jest - Unit testing
    • Cypress - Component and integration testing
    • Testing Library - React testing utilities
    • MSW - API mocking

Code Quality & Linting

    • ESLint - JavaScript linting
    • TypeScript strict mode

Development Tools

    • Storybook - Component documentation
    • Happo - Visual regression testing

Mobile Development

    • Capacitor - Native mobile app wrapper
    • iOS & Android - Native mobile platforms

CI/CD & DevOps

    • GitHub Actions - Continuous integration
    • AWS - Cloud infrastructure
    • Datadog - Monitoring and analytics

Monitoring & Analytics

    • Sentry - Error tracking
    • Amplitude - User analytics
    • Unleash - Feature flags

Date & Time

    • date-fns - Date manipulation
    • moment - Date handling (legacy)

Interview Process

    • Screen call - Video call with a member from the Talent Team - 30 - 60 minutes
    • 1st stage - Technical Video call/In-person interview with our Engineers- Up to 60 minutes
    • Tech stage - Technical Video call/In-person interview with our Engineers - up to 2 hours
    • Final stage - Video call/In person meet with our CTO - up to 60 minutes

      • We aim to finalise the entire interview process and deliver feedback within 4 weeks.

      Every job application received is reviewed manually by our talent team. While we strive to assess applications within 7 days, the sheer volume of talented individuals expressing interest may occasionally extend this timeframe
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