Senior Full-Stack Developer (React + React Native & Typescript)

Senior Full-Stack Developer
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Location: Barcelona, Spain
Responsibilities
Develop and maintain cross‑platform interfaces using React.
Refactor and modernize components to improve speed, usability, and accessibility.
Complete cross-functional tasks to improve and optimize the performance and design of our products and interfaces.
Collaborate closely with a small, agile team.
Take ownership of projects and features from concept to release.
Drive architecture and code quality (patterns, refactoring, maintainability).
Be ready to contribute quickly after a fair onboarding period.
Improve performance & UX with measurable outcomes such as Core Web Vitals, load times, and responsiveness.
Qualifications
Several years of production experience.
Excellent TypeScript skills (clean types, ref...