Frontend Product Engineer (React + TypeScript)

Fresha

🇵🇱 Poland

On-site

32 months ago

PLN 25,000 – PLN 40,000 / month

AI
Claude
Cursor
React.js
TypeScript
Cypress
Jest
Testing Library
CI/CD
Devops
GraphQL
Apollo
urql
Design Systems
JavaScript
React Router
DOM
Redux
Zustand
Formik
esbuild
SWC
Rust
Sass
CSS
PostCSS
Lottie
Server-Sent Events
Node.js
Ruby on Rails
PostgreSQL
Redis
Docker
Kubernetes
Unit Testing
Integration Testing
ESLint
Storybook
Visual Regression Testing
Capacitor
iOS
Android
GitHub Actions
AWS Cloud
Datadog
Sentry
Amplitude

Health insurance
Equity

32 months ago

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Location: Warsaw, Poland - Onsite (4 days/week)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 At Fresha, we believe AI is a force multiplier for feature delivery, not just a coding assistant. We provide every engineer with top-tier tooling (Claude, GitHub Copilot, Cursor) to strip away technical toil—so you can focus your energy on shipping high-impact product features. We value engineers who know how to leverage these tools to drive momentum within our 6-week cycles, accelerating the journey from concept to code while maintaining the deep technical judgment to verify, secure, and own the final user experience. * Own and evolve ourcore 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 inReact + TypeScript, reaching millions of professionals and clients.* Own features end-to-end: discovery, technical design, implementation, testing, rollout, and observability.* Tap into (and extend) ourDesign 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

AI-Augmented Workflow:You have deep experience building and interacting with AI agents, using them to amplify your output to 5x that of manual coding. You are able to integrate agents into our workflow while strictly adhering to our architecture and security standards, taking full accountability for ensuring all generated code meets the quality expectations of a Senior Engineer.
Deep expertise in modernReact & TypeScript, with a track record of shipping large-scale, consumer-facing web apps.
Solid grasp ofGraphQL (Apollo or urql) and REST fundamentals.
Experience working withdesign systems.
Fluency inweb performance, cross-browser, and responsive design best practices.
A testing mindset and familiarity with JS/TS testing frameworks.

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 90 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 within4 weeks.

Frontend Product Engineer (React + TypeScript) · Fresha

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