Top Front End Developer Jobs in Lisbon

Looking for a Frontend Developer with experience in JavaScript and its frameworks, along with HTML5, CSS3, and REST APIs for a collaborative team.

Build and maintain complex, data-heavy React front-end features for a cybersecurity SaaS platform. Implement reusable UI components, integrate with REST APIs, optimize performance, handle permissions and async workflows, and collaborate with cross-functional teams to deliver stable enterprise-grade user experiences.

Lead frontend development of sportsbook web applications using React and TypeScript. Build reusable, performant, secure UI components, optimize for speed and scalability, collaborate with designers, backend, QA, and product, participate in full application lifecycle, and mentor the team.

The Frontend Developer will design and implement features in React, Angular, or Vue.js, ensuring code quality and optimizing performance, while collaborating in an agile setting.

Seeking a Frontend Developer skilled in TypeScript and JavaScript, with experience in web development and 2D/3D graphics, to join our team.

Design, develop, and optimize complex front-end applications for a high-scale payment integration platform using React and TypeScript. Ensure performant, testable, maintainable code, lead projects, perform code reviews, collaborate with backend/DevOps/product teams, and stay current with React ecosystem trends.

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.

The Senior Frontend Developer will create user-facing features, optimize code performance, innovate with new technologies, and collaborate with team members and stakeholders.

As a Senior Software Engineer, you will develop high-performance UIs and architect the Backend for Frontend layer, collaborating with cross-functional teams to enhance usability and integrate AI tools.

Design and build scalable, accessible frontend applications for AI-driven Contact Center and UC products. Implement responsive interfaces with Angular/React, integrate with backend AI services (REST/GraphQL), optimize performance, participate in architecture and code reviews, and collaborate with cross-functional teams in an Agile environment.

Build, ship, and own major parts of the product UI using React and Next.js. Design and optimize responsive, accessible interactive experiences. Collaborate with product, design, and backend teams, contribute to frontend architecture, performance, and component library, and elevate product quality through pragmatic, fast-moving execution.

Full-Stack Engineer responsible for developing and maintaining front-end and back-end components, collaborating on product solutions, and improving user interfaces.

Design, implement, and maintain frontend applications and internal tools. Own delivery of high-visibility features, collaborate with cross-functional teams, mentor peers, and ensure performant, accessible, polished user interfaces integrated with backend systems.

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.

Seeking a Senior Frontend Engineer to build cloud-native applications and scalable infrastructure, focusing on architecture, user experience, and data processing in a collaborative environment.

Design and implement core capabilities for SingleStore's cloud platform, tackling complex system problems while mentoring engineers and collaborating with Product Management.

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

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.

As a Front-End Web Developer, you'll create high-performance web applications, collaborating with designers and back-end developers to optimize user interfaces using modern technologies.

As a Software Engineer, you will develop features focused on business growth, collaborate with various teams, innovate customer experiences, and enhance application reach.

As a Senior Frontend Engineer, you'll develop seller-facing products, enhance the design system, and ensure high-quality TypeScript code delivery, while collaborating with teams.

Join OutSystems as a Mid Frontend Developer, collaborating with teams to create innovative, user-centered applications, utilizing OutSystems and AI-assisted tools.

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