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# Frontend Engineer

- **Company:** Innovation Labs
- **Location:** Madrid, Spain
- **Contract:** Temporary to permanent
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Artificial Intelligence, Application Integration Architecture, HTML5, Cascading Style Sheets (CSS), Cursor (Graphical User Interface Elements), ECMAScript, Responsive Web Design, TypeScript, ReactJS, Cypress (Programming Language), Git, Material UI, Information Technology, Playwright, Front End Software Development, React Testing Library, JestJS
- **Published:** September 2, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ Bachelor's degree in computer science
 + 4 years or more of working experience in Front-end web development, React and TypeScript
 + Great knowledge of Front-end technologies & frameworks:
 - CSS3
 - JavaScript (including ES6)
 - HTML5
 - Material UI
 - React Hook Form with Zod
 - TanStack Query
 - Zustand
 - Vitest or Jest for testing
 + Ability to implement Responsive Web Design principles
 + Fluency in Git
 + AI-Assisted Development:
 - Experience in utilizing AI tools during development (Copilot, Cursor, Claude...)
 - Critical, deliberate approach to AI usage
Nice to have skills

 + Experience with styled components
 + Knowledge of React Testing Library, MSW and Playwright or Cypress
 + Building interactive maps with live-updating and draggable marker
 + Experience in writing custom agent skills / instructions / rules
General skills

 + Excellent knowledge of English language (both verbal & written)
 + Ability to write well-documented, reusable and clean code
 + Care and value code maintainability, readability, and testing
 + Ability to work in cross-functional team

## Description

We are looking for an experienced Front-End Engineer to join our team on a 3-month contract, with the possibility of extension. The role will focus on building scalable, high-quality front-end solutions, developing reusable components, integrating APIs, and ensuring strong performance, accessibility, and reliability across our applications.
Main duties

 + Designing scalable front-end architectures
 + Translating product/design requirements into high-quality code
 + Developing reusable, maintainable components
 + Implementing responsive and accessible interfaces
 + Handling API integration
 + Monitoring and improving front-end performance
 + Writing unit, integration, and end-to-end tests
 + Documenting application changes


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