Top Front End Developer Jobs in Lisbon

Design and build high-performance, mobile-first web applications and internal CMS/analytics tools. Own frontend architecture, reusable UI systems, and developer-friendly foundations. Optimize rendering, caching, and Core Web Vitals for high-load environments. Implement complex editors, forms, dashboards, and state-heavy interfaces with strong testing and observability practices.

Develop server-side applications using Kotlin and Java, collaborate with teams to enhance Atlassian plugins, and ensure code quality through testing and reviews.

As a Frontend Engineer, you will build and enhance frontend solutions for financial configurations, develop internal tools, and create customer-facing interfaces, ensuring high performance and quality in financial applications.

Develop and maintain scalable front-end applications using AngularJS, integrate RESTful APIs, and collaborate with cross-functional teams while ensuring performance optimization and usability.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

Join Cerebras Systems to optimize and develop frontend compiler infrastructure for PyTorch models on their unique wafer-scale AI platform, focusing on model representation and optimization.

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 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.