Top Front End Developer Jobs in Portugal

Develop and maintain scalable customer-facing front-end features (onboarding, pricing, subscriptions, payments) using React and TypeScript. Collaborate with product, design, QA, and back-end teams, participate in architecture and code reviews, write automated UI/integration tests, and improve engineering processes and developer experience.

Build and maintain shared frontend libraries and applications (TypeScript/React) within a micro-frontend architecture. Improve developer experience, ensure SSR performance and testing, support frontend teams, mentor junior engineers, and drive best practices for deployment, CI/CD, internationalization, and frontend performance optimization.

Drive end-to-end product development for iTero 3D imaging systems by translating clinical needs into software requirements, leading cross-functional agile teams, driving ML diagnostic initiatives from PoC to productization, analyzing clinical usage data for improvements, and embedding customer feedback into product decisions to enhance usability, performance, and clinical value.

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.

Design, build, and evolve scalable frontend features and shared UI libraries using React and TypeScript. Lead cross-team frontend architecture, maintain monorepo and micro frontend platform (module federation), and own CI/CD pipelines in GitHub Actions. Use AI-assisted and agentic AI tools as part of daily engineering workflow.

Develop user-facing web and Electron-based desktop applications using React, JavaScript/TypeScript and Node.js. Collaborate with a small multidisciplinary team of developers, data scientists, and clinicians to build digital health software and clinical algorithms. Communicate effectively with non-technical stakeholders and work in a fast-paced environment.

Design, build, and own merchant-facing frontend projects end-to-end. Lead frontend architecture, produce RFCs/ADRs, build composable performant accessible UI, monitor production metrics, participate in incident response, and mentor teammates.

Build and maintain scalable customer-facing front-end features (onboarding, pricing, subscriptions, payments) using React and TypeScript. Collaborate with cross-functional teams, participate in architecture and code reviews, write automated UI/integration tests, ensure code quality, and contribute to developer experience and process improvements.

Design and implement complex customer-facing frontend features using TypeScript and React. Provide technical leadership, mentor junior engineers, drive frontend architecture and best practices, improve performance and accessibility, partner with product/design, integrate with backend APIs, and manage technical debt and scalability.

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.

Frontend-focused product engineer building high-quality SaaS user experiences. Work in cross-functional squads to own UI, interaction patterns, performance, accessibility, prototyping, instrumentation, and feature rollouts. Primary frontend work with openness to backend or mobile tasks, using AI-assisted coding and agile practices.

Build and maintain user-facing features and interfaces for Restream web services. Design and implement UI and business logic, collaborate with product designers and engineers, perform code reviews, improve reliability and scalability, and evaluate emerging technologies.

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

Design, build, and enhance web and mobile frontends (corporate website, dashboards). Implement visual elements, maintain and improve features, optimize with backend teams, and ensure great dashboarding and user experience.

Build, test, and deploy performant web applications using a no-framework approach and custom elements. Collaborate with UX and backend teams, ensure scalability and reliability, perform code reviews, troubleshoot issues, and use CI/CD pipelines.

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 support large frontend features, refactor existing code, and collaborate on full-stack and AI-related initiatives. Work primarily with React-based applications, ensure browser performance and correct network behavior, and apply solid programming patterns and algorithmic reasoning.

Build and maintain high-performance, accessible React frontend applications and component libraries. Collaborate with designers, product, and QA; write tests; optimize performance; mentor juniors; own projects from prototype to production.

The Senior Software Engineer will enhance Dashlane's Web Platform quality and performance, implement testing frameworks, drive AI integration, and mentor teams.

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

Lead frontend development of AI-powered agent and admin interfaces: design and ship React/TypeScript UIs, integrate with backend and ML systems (streaming, latency, failure handling), drive frontend architecture and performance, mentor junior engineers, and own features end-to-end from design to production.

Develop and maintain cloud-native front-end applications using HTML, CSS/SCSS, JavaScript and Vue.js (Vuex, Vue Router). Ensure UI/UX feasibility, build reusable components, maintain cross-browser compatibility, use version control, and collaborate to drive product development for Altium 365.

Design and ship production-quality React frontend features: translate ambiguous product problems into testable specifications, run and review AI agent workflows, debug and root-cause production issues, write accessible HTML/CSS, integrate with backends, and own end-to-end delivery including tests and deployment.

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.

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