pBrainRocket is a integral company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits. /ppWe're looking for a strongSenior Front-End Developer (React) /strong to join our team in our office in Valencia. /pulli5+ years of professional front-end development. /lili3+ years using React (16.8+) in production environments. /liliStrong proficiency in TypeScript, including strict-mode. /liliHands-on experience writing unit tests (Jest) and E2E tests (Cypress or Playwright), with CI integration. /liliExperience with TanStack Query (or similar) for REST/GraphQL data-fetching. /liliExperience with React Hook Form (or equivalent) and schema-based validation for complex forms. /liliKnowledge of modern state management patterns using Zustand, Redux, or equivalent. /liliFamiliarity with modern build tooling like Vite (preferred), Webpack 5, or similar ES-modules pipeline. /liliIntermediate level of English. /li /ulp✅ strongWould be a plus: /strong /pulliProven ability to refactor large front-end codebases—optimising data-fetch patterns, state management, and component architecture. /liliDeep familiarity with modern data-grid libraries—preferably TanStack React Table 8 (virtualised rows, column meta, server-side filtering/pagination).



/liliExperience building UIs with Chakra UI or equivalent component libraries with custom theming. /liliFamiliarity with Storybook. /liliExperience designing and implementing infrastructure for AI agent systems. /liliMaintain and enhance existing React/TypeScript UIs, emphasizing stability. /liliBuild new features on top of an established system, following defined architecture and design patterns. /liliDrive stability efforts - quickly resolve critical bugs and regressions, and proactively refactor fragile parts of the codebase. /liliCollaborate closely with Product, Design, and Backend teams to deliver frontend features on schedule without sacrificing code quality. /liliParticipate actively in code reviews, mentor teammates, and help maintain high standards for code hygiene, CI quality, and technical documentation. /li /ulp✅ strongWe offer excellent benefits, including but not limited to: /strong /pp Learning and development opportunities and interesting, challenging tasks. /pp Official employment following the laws of Spain/EU, registration of family members. /pp✈️ Relocation package (tickets, staying in a hotel for 2 weeks). /pp ️ Company fitness corner in the office for employees. /pp Opportunity to develop language skills and partial compensation for the cost of language classes. /pp Time for proper rest and 23 working days of Annual Vacation. /pp Breakfasts and lunches in the office (partially paid by the company). /ppBold moves start here. Make yours. Apply today! /p #J-18808-Ljbffr

📌 Senior Frontend Developer (React) (Valencia)
🏢 Brainrocket
📍 Valencia