Senior Front-End Developer (React) to join a client project within ALTEN’s Software Factory, focusing on automation tooling and accelerating software development. You will build and maintain Front-End applications in React and TypeScript, integrate REST/GraphQL APIs, and manage application state with Redux, Zustand, or Recoil. The role emphasizes performance optimization (lazy loading, code splitting, memoization) and delivering a responsive, mobile-first user experience. Collaboration with design (Figma, Storybook) and product teams to translate mockups into technical solutions is required. You will implement Front-End tests (Jest, React Testing Library, Cypress/Playwright), contribute to CI/CD and advanced Git workflows, promote accessibility (WCAG) and maintainable code, and participate in Agile rituals (Scrum, Sprint Planning, Backlog). Requirements include 7+ years of Front-End development with strong React/TypeScript expertise, excellent JavaScript ES6+, API integration, modern CSS frameworks (Tailwind, MUI, Styled-components), testing, performance tuning, and tooling (Vite, ESLint, Prettier); professional French is required with English technical proficiency. Location options: Remote (100% remote) or on-site in Lyon, France.

Senior Front-End Developer (React) to join a client project within ALTEN’s Software Factory, focusing on automation tooling and accelerating software development. You will build and maintain Front-End applications in React and TypeScript, integrate REST/GraphQL APIs, and manage application state with Redux, Zustand, or Recoil. The role emphasizes performance optimization (lazy loading, code splitting, memoization) and delivering a responsive, mobile-first user experience. Collaboration with design (Figma, Storybook) and product teams to translate mockups into technical solutions is required. You will implement Front-End tests (Jest, React Testing Library, Cypress/Playwright), contribute to CI/CD and advanced Git workflows, promote accessibility (WCAG) and maintainable code, and participate in Agile rituals (Scrum, Sprint Planning, Backlog). Requirements include 7+ years of Front-End development with strong React/TypeScript expertise, excellent JavaScript ES6+, API integration, modern CSS frameworks (Tailwind, MUI, Styled-components), testing, performance tuning, and tooling (Vite, ESLint, Prettier); professional French is required with English technical proficiency. Location options: Remote (100% remote) or on-site in Lyon, France.