Frontend Developer

Role: Frontend Developer

Location: Barcelona, Spain

Job Type: Contract - Hybrid

We are looking for a skilled front-end developer to join our team in building an innovative application that will revolutionize healthcare. The ideal candidate will have a strong proficiency in JavaScript and experience with modern front-end frameworks such as React. Responsibilities will include collaborating with the design and back-end teams to implement user-friendly interfaces, optimizing application performance, and ensuring cross-browser compatibility. The successful candidate will have a passion for creating elegant and intuitive user experiences, a strong attention to detail, and a collaborative mindset to work effectively within a diverse team

Responsibilities

• Develop new user-facing features: Translate designs and wireframes into high-quality, reusable React components.
• Ensure responsiveness and performance: Optimize components for a variety of devices and browsers. Write clean, maintainable code.
• Implement state management: Utilize libraries like Redux or Context API to manage application state in complex projects.
• Collaborate with team members: Work effectively with designers, back-end developers, and other stakeholders.
• TypeScript: Familiarity with TypeScript for improved type safety and maintainability in large projects.
• Write unit and integration tests: Ensure code quality and maintainability using frameworks like Jest and React Testing Library.
• Stay up-to-date: Continuously learn and adapt to the evolving React ecosystem

Required Skills

• In-depth knowledge of React.js: Proficiency with core React concepts, components, state management, props, JSX syntax, and modern JavaScript features (ES6+).
• Strong experience working with design systems: Proven ability to build and maintain reusable, scalable component libraries; direct collaboration with UX designers using tools such as Figma and Storybook is essential.
• User experience (UX) mindset: All front-end developers are expected to exhibit strong UX attitudes, consistently prioritizing usability, accessibility, and user-centric principles in every aspect of their work.
• Experience with front-end build tools: Comfortable leveraging Vite, Babel, npm (or yarn) for development workflows, bundling, and dependency management.
• Version control systems: Skilled in using Git for version control and team collaboration, including automation with Git actions for continuous integration and deployment.
• RESTful APIs: Ability to effectively fetch data from and interface with RESTful APIs.
• Testing frameworks: Proficiency with tools such as SonarQube and GitHub Copilot, integrating tests into CI/CD pipelines, and utilizing frameworks such as Vitest, Pytest, and Playwright; full ownership of code quality and comprehensive testing prior to integration is required.
• Code quality tools: Familiarity with SonarQube for ongoing code quality and security analysis.