Frontend Engineer Jobs

Build polished, reliable frontend web applications for Justworks as a senior member of its Frontend Engineering team. You’ll shape customer-facing experiences, solve UI/UX problems, and help grow the engineering team.

Build high-scale, mission-critical payment web applications as a frontend engineer using React and TypeScript. You’ll develop micro-frontends, expand payment methods, and improve reliability across production systems.

Founding Design Engineer owning the frontend experience, design system, and interaction patterns for an AI-powered pricing optimization platform. Build polished React interfaces and conversational experiences while establishing scalable frontend standards across the team.

Senior Software Engineer building and operating a TypeScript-based full-stack platform for certificate management, TLS, vulnerability monitoring, uptime, and security products. The role spans APIs, frontends, databases, cloud infrastructure, production operations, and legacy-system modernization.

Build high-performance Firefox rendering and interaction features, with a particular focus on Asynchronous Pan and Zoom (APZ). You’ll work in an open-source, globally distributed team across desktop and mobile platforms.

Join Mozilla’s Firefox Platform Layout/APZ team to build high-performance scrolling, zooming, layout, graphics, and user-interaction capabilities for Firefox across major platforms. You’ll develop open-source, standards-compliant browser-engine code that improves the experience of millions of users.

Build high-performance Firefox layout and rendering features focused on Asynchronous Pan and Zoom, helping make web interactions fast and delightful across major platforms. You’ll work openly with a distributed team on standards-compliant browser engine code.

Join the founding Madrid Technology Hub team as a Frontend Engineer I, building accessible, scalable enterprise interfaces with React and TypeScript. You will shape design systems, collaborate globally, and contribute to high-quality digital products for commercial real estate.