Top Front End Developer Jobs in Portugal

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.

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.

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

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.

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.

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

Build and maintain scalable, accessible, high-performance frontend components and reusable libraries. Collaborate with Product, Design, and Backend teams, write tests, lead code reviews, mentor junior engineers, and drive frontend architecture and technical improvements.

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

The Senior Frontend Product Software Engineer (React) will enhance the Kyte product by executing software development tasks, optimizing performance, collaborating with teams, mentoring, and establishing best practices in frontend development.

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

Build and maintain frontend applications for trading and brokerage products using TypeScript and React. Collaborate with team members, prioritize business value, own features to completion, follow company standards, and ensure quality, accessibility, and web performance.

Build and own frontend UI components for a SaaS AML platform. Collaborate with backend engineers, design performant, maintainable interfaces, ensure production reliability and observability, write tests, and contribute in agile team ceremonies.

As a Power BI Developer, you will design and maintain dashboards, translate business queries into metrics, and engage stakeholders for BI solutions.

Develop, maintain, and improve Angular-based web applications using TypeScript/JavaScript. Ensure code quality via reviews and testing, collaborate with cross-functional teams, and support CI/CD and continuous improvement initiatives.

Design and develop high-performance Angular applications, collaborate with cross-functional teams, ensure architecture and code quality, integrate complex frontend platforms (StencilJS/React), work with modern Angular (Signals, v19-21), TypeScript, RxJS, contribute to monorepo strategies and CI/CD pipelines.

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.

Design, develop, implement and maintain web and mobile front ends. Provide technical leadership on UI/UX, create standards and architectures, build responsive, cross-browser interfaces, collaborate with developers and analysts, and deliver prototypes and production-ready implementations.

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.

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

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.

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.

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.