Top Front End Developer Jobs in Lisbon

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 maintain shared frontend libraries and applications (TypeScript/React) for a micro-frontend architecture. Improve developer experience, support frontend teams, mentor junior engineers, and ensure high performance, testing, and deployment practices across the organization.

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

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 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.

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.

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 and maintain modern dashboard UIs using React and TypeScript. Implement canvas-based generative AI pipelines, integrate async pipelines via WebSockets, ensure performance for large media datasets, shape UX decisions, and define data contracts with backend teams.

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

Software Engineer responsible for developing and improving features in a fast-paced environment. Involves collaboration across teams and ownership of projects throughout their lifecycle.

Build and maintain responsive, accessible React frontends from Figma designs; create reusable components and Storybook docs; implement client and server state management; integrate wallet and blockchain interactions; write unit, integration, and E2E tests; monitor and debug production with Sentry; participate in architecture, estimation, code review, and CI/CD workflows.

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.

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.

Own and ship frontend features end-to-end with a product mindset: onboarding, activation, dashboards, and billing UI. Build AI-first experiences, instrument features (analytics, events, dashboards), run A/B experiments, collaborate with backend and cross-functional teams, mentor engineers, and maintain clean, well-tested React code.

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

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.

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.

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.

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.