UI/UX Developer
Infoplus Technologies GmbH
Contact person: Vinita Sharma
barcelona, Spain
ITHTMLUser Experience (UX)Cascading Style Sheets (CSS)SAP Web DynproUser Interface DesignSemantic HTMLTypeScriptUser Interface TestingUser-Centered DesignModern UiUX WritingPlaywrightGlade Interface DesignerFigmaGraphQLFront End Software DevelopmentAndroid UiRich Ui
Description
Freelancing
Location- Barcelona
Hybrid
Duration- 3 months with possible extension
As a UI/UX Developer, you will lead the design and implementation of intuitive, high-performance user interfaces for AI-driven image analysis solutions.
Day to day, you’ll partner with software engineering teams, product owners and other relevant functional teams to translate scientific and product needs.
Required skills
? Expert with React and TypeScript, including hooks, state management, and modern patterns.
? Proficiency in UX/UI tools and practices (Figma/Sketch, wireframing, prototyping, user flows).
? Strong CSS skills (CSS-in-JS or utility frameworks), responsive design, and cross-browser compatibility.
? Experience with Playwright for E2E testing and testing-library/Jest for unit/integration tests.
? Familiarity with accessibility standards (WCAG), semantic HTML, and ARIA best practices.
? Comfortable defining and evolving a design system and component library.
? Experience integrating REST/gRPC/GraphQL APIs and handling auth, caching, and error states.
? Practical understanding of performance profiling, code splitting, and CI/CD for frontend apps.
? Clear communication, user empathy, and ability to drive work from discovery through delivery. Desirable (Nice to have):
? Data visualization (e.g., D3, openLayers), storybook-driven development, analytics/telem