Develop and evolve React applications with a focus on performance, responsiveness and stability on Chrome Desktop and Chrome Mobile
Build interfaces optimized for medium and large screens, with good touch ergonomics
Perform advanced troubleshooting, investigating incidents and degradations using metrics, logs and traces
Contribute to front-end architecture patterns, code quality, componentization and scalability
Work closely with Product and technical teams to deliver improvements that have real impact for users

Advanced React: Hooks, Context, modern componentization patterns and state management (Redux/Zustand/React Query)
TypeScript (strong)
JavaScript ES6+
HTML5
CSS3
Experience with Styled Components, Tailwind or equivalent
Tooling: experience with Vite/Webpack/Next.js and build/deploy pipelines (CI/CD)
Proven experience with Chrome on Windows and Chrome Mobile (real devices, not just responsive mode in an emulator)
Debugging and performance: strong command of Chrome DevTools, Lighthouse and optimization techniques (rendering, memoization, bundling, network)
Observability: experience with Dynatrace, Datadog, New Relic, Elastic APM, Sentry or similar tools
Front-end security: solid understanding of XSS, CSRF, secure handling of tokens/cookies/storage and integration with authentication/authorization
Collaborative mindset, with active participation in technical discussions and architecture decisions
Strong analytical thinking for investigation and root-cause analysis
Product mindset: understands context, users and trade-offs, not just "closing tickets"
Clear communication with technical and non-technical audiences
Ownership of quality and stability: delivers and maintains solutions without passing problems on to others

React Frontend Developer, Mid-level

Key skills