Top Front End Developer Jobs in Barcelona

Build and maintain a high-data web platform using modern frontend technologies. Deliver well-structured code, develop SPAs with React/Redux, integrate Node/Express backends, implement testing, use build tools, follow SCRUM, and adapt across environments.

Build and maintain accessible, scalable web components and UI for a cloud platform. Translate Figma designs into reusable code, write tests (Jest/Vitest/Playwright), document components, collaborate with team members, and ensure responsive, high-performance user interfaces.

The Frontend Engineer will improve architecture, ensure timely project delivery, code features, review team code, and collaborate across functions.

Design and implement front-end applications using React, ensure high performance and security standards, and contribute to CI/CD pipelines and automated testing.

Design and build payment UI components, pages, and merchant/admin dashboards. Translate business requirements into intuitive interfaces, optimize payment flows, leverage AI tools to accelerate frontend work, collaborate with backend engineers, and help evolve the product and tech stack.

Design, develop, and maintain responsive, high-performance Angular user interfaces for enterprise applications. Translate UI/UX designs into reusable code, ensure cross-browser compatibility and accessibility, integrate with RESTful APIs, implement testing strategies, perform code reviews, debug UI issues, and mentor junior developers while improving front-end architecture and processes.

Build user-facing features with React and TypeScript, implement responsive UIs from Figma, collaborate with design, deploy via continuous deployment, learn Node.js/backend, use AI coding tools, and ship production-ready features while receiving mentorship.

Build and ship performant, polished frontend features using React/TypeScript. Refactor code incrementally, implement smooth animations, contribute to backend Node.js APIs when needed, use AI-assisted tools, own production deployments, and collaborate directly with CTO/CPO on product and design.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end engineers to implement high-performance, cross-browser UIs, manage state with Redux/Context API, integrate RESTful APIs, and debug front-end issues while following best practices and maintaining clean, scalable code in a remote team.

The Cloud Frontend Engineer at Signaloid will implement new front-end features, enhance testing infrastructure, and improve platform performance, collaborating with engineering and design teams.

Develop Vue.js components for a dashboard, create data visualizations, debug code, and collaborate with team members in an agile environment.

The role involves developing high-quality Vue.js applications, creating interactions, collaborating with back-end engineers, and writing tests.

As a Senior Angular Frontend Engineer at Fever, you will design and implement web experiences while collaborating with cross-functional teams to enhance performance and scalability. You'll take ownership of core components and contribute to best practices in system design, driving improvements and mentoring others.

As a TypeScript developer, you'll write clean code, develop front-end solutions, and utilize various web technologies to enhance home design experiences.

Lead and build features for WeTravel's ecosystem, focusing on user experience, system architecture, and project leadership. Collaborate with product teams and mentor engineers.

Lead the design and engineering of user interfaces and dashboards for Roche's digital products, mentoring junior engineers and driving technical solutions.

Develop high‑traffic web applications and self‑serve conversion flows (discovery → quote → signup), build and optimize alan.com and marketing acquisition systems, collaborate with Marketing/Sales/Product/Data/Design, and deliver measurable improvements that drive member acquisition and revenue using the company stack.

Serve as a senior Java full-stack engineer building and maintaining backend services for blockchain applications, integrate APIs with React/Vue frontends, design scalable enterprise blockchain solutions, troubleshoot complex backend issues, and collaborate with cross-functional teams to apply best practices.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

Join Dragonfly's talent network as a Senior Frontend Engineer. Connect with global portfolio companies in the crypto ecosystem.

The UX / Frontend Engineer will develop and maintain web applications, focusing on user interfaces, data visualizations, and collaboration with design and engineering teams in the life sciences sector.

Build and optimize a high-performance web photo editor using React, TypeScript, and Next.js. Implement responsive interfaces for heavy in-browser image processing, contribute to frontend architecture (Canvas, WebAssembly, multithreading), and ensure top-tier performance and code quality.

Build and ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.

The Front End Developer will design and implement features, take ownership of projects, and contribute to backend tasks as needed while optimizing performance and scaling UI design.

Build and optimize user-facing features and reusable React components, translate UI/UX into code, collaborate on tests with QA, document technical decisions, and demo products to stakeholders.