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Ubique Systems

Frontend Developer

Ubique Systems
Spain · Contract · Associate

Greetings from Ubique Systems!!!




We are looking for a Senior Frontend Developer for one of our customer who has an expertise in:-



  • 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.
  • Demonstrable experience as a React developer with a track record of applying design system guidelines and partnering closely with design teams to ensure polished, intuitive interfaces.
  • Familiarity with modern JavaScript features: Proficient in features such as arrow functions, classes, modules, and promises, all of which enhance code readability and maintainability.
  • 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.




Employment type:- B2B Contract.




It would be hybrid working in Barcelona, Spain.



Note:-Only apply if you have valid visa in the EU Region, Sponsorship will not be given.

Key Skills

Ranked by relevance

ux javascript react git continuous integration design systems reactjs figma yarn cicd npm
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Posted
Dec 02, 2025
Type
Contract
Level
Associate
Location
Barcelona

Industries

IT Services IT Consulting

Categories

Information Technology

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