Frontend Product Engineer (React + TypeScript)

Location: Warsaw, Poland - Hybrid (4 days on-site / 1 day remote)Contract: B2B 25-40 k PLN net / month + RSUsWhy 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 ForDeep 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 HereDirect 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 TechnologiesReact - Modern JavaScript UI libraryTypeScript - Strongly typed JavaScriptReact Router DOM - Client-side routingReact Redux - State managementZustand - Lightweight state managementFormik - Form managementBuild Tools & BundlersRsbuild - Modern build tool (Rspack-based)esbuild - Fast JavaScript bundlerTurbo - High-performance build systemSWC - Rust-based JavaScript compilerUI & Design SystemFresha Design System - Custom design systemSass/SCSS - CSS preprocessorPostCSS - CSS transformationLottie - AnimationsState Management & Data FetchingRedux with Redux ActionsURQL - GraphQL clientBackend CommunicationGraphQL - API query languageGraphQL Code Generator - Type-safe GraphQLPhoenix - Real-time WebSocket channelsWebSocket & Server-Sent Events supportBackend TechnologiesNode.jsTypeScriptElixirRuby on RailsPostgreSQLRedisDockerKubernetesNginxAWSTesting FrameworkJest - Unit testingCypress - Component and integration testingTesting Library - React testing utilitiesMSW - API mockingCode Quality & LintingESLint - JavaScript lintingTypeScript strict modeDevelopment ToolsStorybook - Component documentationHappo - Visual regression testingMobile DevelopmentCapacitor - Native mobile app wrapperiOS & Android - Native mobile platformsCI/CD & DevOpsGitHub Actions - Continuous integrationAWS - Cloud infrastructureDatadog - Monitoring and analyticsMonitoring & AnalyticsSentry - Error trackingAmplitude - User analyticsUnleash - Feature flagsDate & Timedate-fns - Date manipulationmoment - Date handling (legacy)Interview ProcessScreen call - Video call with a member from the Talent Team - 30 - 60 minutes1st stage - Technical Video call/In-person interview with our Engineers- Up to 60 minutesTech stage - Technical Video call/In-person interview with our Engineers - up to 2 hoursFinal 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