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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Frontend Developer (Barcelona) - **Company:** Festo - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Unit Testing, Continuous Integration, JQuery, SonarQube, TypeScript, Openapi, ReactJS, Gitlab, Git, Syntactically Awesome Style Sheets (SASS), Webpack, Information Technology, Playwright, Front End Software Development, Docker, Service Stack - **Published:** September 25, 2026 - **Apply:** https://www.buscojobs.com.es/frontend-developer-barcelona-en-barcelona-ID-373641285 ## About the Role Degree in Information Technology or a related field. - 3+ years of relevant professional experience. - Strong hands-on experience with React, state management, TypeScript, Sass, and Git (GitLab) . - Experience with Modern.js (or similar React meta-frameworks), OpenAPI , fundamental CI/CD concepts, Docker , and Module Federation is considered a plus. - Commitment to delivering high-quality code and exceptional user experiences. - Ability to work effectively within an international and diverse team, supported by strong communication skills. - Independent, structured, and proactive approach to work, combined with a holistic mindset. - Good written and spoken English skills, as daily communication will be conducted in English, including technical discussions and the ability to articulate complex topics clearly. - Spanish, German, and Lithuanian language skills are appreciated but not required. ## Description We are looking for a Front-End Developer who will have the opportunity to work with a modern technology stack, including Modern.js, Module Federation, Sass, TypeScript, OpenAPI, Nx, pnpm, Docker, Rstest, Playwright , within an agile and technology-driven environment .As the project is currently undergoing a transition phase, you should be prepared to work with legacy code when required. This may involve maintaining and enhancing implementations ranging from older React/Webpack solutions to code originating from the jQuery era . You will collaborate closely with colleagues across different disciplines, contributing to an innovative, cross-functional, and highly technical environment.Role Description- Develop and maintain the front end of our continuously evolving, enterprise-scale integral eCommerce platform, supporting our online catalog and processing customer transactions in more than 55 countries worldwide .- Build and maintain decentralized frontend modules within a micro-frontend architecture powered by Module Federation and Modern.js .- Create and maintain tests and documentation to ensure high code quality. This includes unit testing with Rstest and contributing to end-to-end quality assurance through the daily use of SonarQube .- Coordinate and align development activities with various stakeholders, a dedicated Operations team, and a QA team.- Support and collaborate with a distributed, cross-border agile team located in Spain, Germany, and Lithuania .Requirements- Degree in Information Technology or a related field.- 3+ years of relevant professional experience.- Strong hands-on experience with React, state management, TypeScript, Sass, and Git (GitLab) .- Experience with Modern.js (or similar React meta-frameworks), OpenAPI , fundamental CI/CD concepts, Docker , and Module Federation is considered a plus.- Commitment to delivering high-quality code and exceptional user experiences.- Ability to work effectively within an international and diverse team, supported by strong communication skills.- Independent, structured, and proactive approach to work, combined with a holistic mindset.- Good written and spoken English skills, as daily communication will be conducted in English, including technical discussions and the ability to articulate complex topics clearly.- Spanish, German, and Lithuanian language skills are appreciated but not required.? Frontend Developer (Barcelona)? Festo? 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