158 react English-speaking jobs in Barcelona

Proficiency in front-end frameworks such as Angular, React or Vue.js.

Our core stack is Ruby on Rails and React but the interesting work right now is what we're building on ... You're comfortable working with Ruby on Rails & React and understand how to integrate AI models into

real-user experience Требования: Proven ability to build and deliver high-quality web applications with React

Our core stack is Ruby on Rails and React, though we're open to engineers from other stacks — what matters ... Our team currently works with Ruby on Rails and React, but we're open-minded about candidates from other

, and AI model platforms Design resilient systems that handle failures gracefully Contribute to the React

distributed systems and Big Data computing technologies Web development on a modern framework such as React

Your mission is twofold: react quickly and effectively when things go wrong, and build, automate, and

Hands‑on experience with prompt engineering, function calling and LLM agent architectures such as ReAct

Our core stack is Ruby on Rails and React but the interesting work right now is what we’re building on

workflows Nice to have: Ability to deliver AI-augmented, implementation-ready designs aligned with our React

Experience with JS‑rendered environments (React, Next.js).

Experience with JS‑rendered environments (React, Next.js).

workflows Nice to have: Ability to deliver AI-augmented, implementation-ready designs aligned with our React

Familiarity with React-based applications and modern web product integration.

Nice-to-have Skills Understanding of how design systems connect to code (CSS, React component APIs, etc

Hands‑on experience with prompt engineering, function calling and LLM agent architectures such as ReAct

Hands-on experience with prompt engineering, function calling and LLM agent architectures such as ReAct

Hands-on experience with prompt engineering, function calling and LLM agent architectures such as ReAct

Frontend: TypeScript, React, Next.js, Tailwind Backend: Node.js, Supabase and Postgres, Vercel infrastructure

Mobile: React Native with TypeScript. Analytics: BigQuery, Mixpanel, Metabase.