> Markdown version of [/jobs/ext/3598061-react-software-engineer](https://www.wearedevelopers.com/jobs/ext/3598061-react-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # React Software Engineer - **Company:** Wizeline - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Adobe Analytics, JavaScript (Programming Language), Web Accessibility, Agile Methodology, Artificial Intelligence, HTML5, Browser Compatibility, Cascading Style Sheets (CSS), Software Quality, Design of User Interfaces, Next.js, Responsive Web Design, User-Centered Design, Web Content Accessibility Guidelines, Web Standards, ReactJS, Backend, Material UI, Information Technology, Front End Software Development, Service Stack - **Published:** October 7, 2026 - **Apply:** https://startup.jobs/senior-react-software-engineer-barcelona-hybrid-wizeline-10319462 ## About the Role * Frontend: Strong hands-on experience with React, JavaScript, and Next.js. * Styling: Experience working with CSS-in-JS solutions. * Component Libraries & Design Systems: Experience building, maintaining, or working with reusable component libraries and design systems. * Storybook: Hands-on experience using Storybook for developing, documenting, and testing UI components. * Accessibility: Strong understanding of web accessibility principles and experience developing interfaces that meet WCAG 2.1 AA standards. * Frontend Architecture: Ability to design and implement scalable, maintainable, and high-quality frontend solutions across different types of products. * Code Quality: Strong focus on writing clean, reusable, tested, and well-documented code. * Collaboration: Ability to work closely with Product, Design, and Backend teams to deliver high-quality user experiences. * Communication: Strong communication skills in English., * BS/MS in Computer Science, Engineering, or a related subject. * Experience working directly with clients or stakeholders. * Hands-on experience working in an Agile environment. * Strong understanding of modern web standards, including HTML5 and CSS3. * Experience with responsive design and cross-browser development. * Strong understanding of UI/UX principles and user-centered design. * Experience contributing to or establishing frontend design systems and component standards. * Experience with frontend testing frameworks and practices. * Experience optimizing frontend applications for performance, scalability, and maintainability. * Experience working across different products, architectures, and technology stacks., * AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, coding, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.