Top Front End Developer Jobs in Barcelona

Build and maintain responsive, high-performance user interfaces using React and modern front-end technologies. Translate UI/UX designs into reusable code, integrate with backend APIs, optimize performance and cross-browser compatibility, and contribute to testing, code reviews, and engineering best practices in a product-driven, remote environment.

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

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.

As a Frontend Engineer at Proton, you will develop features for Proton Drive, collaborate with teams, conduct code reviews, and implement testing strategies.

Develop and maintain resilient front-end components for Proton VPN, collaborating with engineering teams to enhance user experience and system performance.

Proton seeks a Senior Frontend Engineer to develop React components, lead complex projects, and enhance B2B product functionality while promoting privacy-oriented solutions for businesses.

As a Frontend Engineer, you will develop new features for Proton's services, collaborate with teams, ensure code quality, and implement testing strategies.

The Senior Frontend Engineer will develop and support innovative privacy-centric tools, ensuring seamless user experiences and collaborating with teams to enhance product features while managing software quality and team mentorship.

As a Frontend Software Engineer, you will build user interfaces for Amplemarket's sales platform, collaborating with co-founders and cross-functional teams to enhance product usability and user experience.