Senior Front-End Developer

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ALTEN

WebsiteLinkedInAll Job Openings

10,000+ employees

🚘 Automotive

🏗️ Construction

💼 Consulting

Automotive • Construction • Consulting

ALTEN is a leader in outsourced Engineering and R&D and IT Services, catering to various industries such as aeronautics, automotive, banking, and life sciences. With a workforce of over 57,400 employees across nearly 30 countries, ALTEN specializes in executing complex and technical projects, supporting innovation and technology advancements in multiple sectors. The company focuses on providing engineering services, project management, and IT solutions to enhance client operations and foster sustainable innovation.

📋 Description

• Develop and maintain reusable UI components for the Design System, ensuring accessibility (RGAA/WCAG) and performance. • Evolve the technical architecture of the Design System: design tokens, theming, and tooling for smooth integration into React, Angular and Vue projects. • Work closely with UX/UI designers to translate mockups (Figma, Adobe XD) into robust technical components. • Support product teams in integrating the Design System and promote best practices (clean code, performance, accessibility). • Document components and integration guidelines for designers and developers. • Optimize performance (lazy loading, Core Web Vitals) and ensure a smooth user experience across devices (mobile-first). • Participate in code reviews and CI/CD processes to ensure code quality.

🎯 Requirements

• Degree from an engineering school or a Master’s degree (Bac+5) in Computer Science, Web Development or equivalent. • More than 7 years of Front-End development experience, with proven expertise in Design Systems and reusable components. • Expert command of TypeScript/JavaScript (ES6+) and web standards (HTML5, CSS3/Sass). • Solid experience with at least one modern framework (React, Angular or Vue.js), with a multi-framework perspective. • Deep knowledge of accessibility (RGAA/WCAG) and UX best practices. • Experience with complex state management (Redux, Context API, NgRx, Pinia) and API integration (REST/GraphQL). • Automated testing (Jest/Vitest, Cypress/Playwright) and performance optimization (lazy loading, code splitting). • Meticulousness and attention to detail to deliver robust, maintainable components. • Team spirit and ability to rally teams around best practices. • Teaching ability to support teams in adopting the Design System. • Autonomy and proactivity to propose innovative solutions. • Technical curiosity and active monitoring of Front-End evolutions. • Professional proficiency in French (written and spoken).