Senior Front-End Developer, React

ALTEN

Développeur Front-End React Senior chez ALTEN, leader en Ingénierie et IT Services. Développer des applications web performantes avec React et collaborer en environnement Agile.

Posted 4/28/2026full-timeRemote • 🇫🇷 FranceSeniorWebsite

Tech Stack

Tools & technologies

CypressGraphQLJavaScriptJestReactReduxTypeScript

About the role

Key responsibilities & impact

Develop modern web interfaces using React (Hooks, Context API, functional components)
Design robust applications in TypeScript following development best practices
Integrate REST and/or GraphQL APIs with careful state and error handling
Manage state using Redux, Zustand, Recoil or equivalent solutions as required
Implement responsive, mobile-first interfaces in HTML5/CSS3 with modern frameworks (Tailwind, MUI, Styled-components…)
Write front-end tests (unit and end-to-end) with Jest, Vitest, React Testing Library, Cypress or Playwright
Optimize application performance (lazy loading, memoization, code splitting)
Ensure application accessibility (WCAG standards)
Participate in Git workflows (PRs, code reviews, rebases) and continuous improvement of practices
Collaborate in an Agile environment with product, design and engineering teams

Requirements

What you’ll need

Degree from an engineering school or a Master’s degree (Bac+5) in Computer Science or Web Development
Minimum 7 years of front-end development experience
Proven expertise in React
Advanced knowledge of React (Hooks, Context API) and JavaScript ES6+ / TypeScript
Experience with state management (Redux, Zustand, Recoil…)
Familiarity with modern tools (Vite, ESLint, Prettier) and CI/CD environments
Practice of front-end testing (Jest, React Testing Library, Cypress / Playwright)

Benefits

Comp & perks

RTT (additional time-off days)
Meal vouchers (60% covered by ALTEN)
Transport contribution (Pass Navigo covered at 90%)
Holiday vouchers
Preferential rates/discounts
ALTEN Solidarity 1% housing program: volunteering with charitable organizations (Les Restos du Cœur, Emmaüs…)
Annual company events
After-work events
Team-building activities
ALTEN Awards
Wellness activities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

ReactTypeScriptJavaScript ES6+ReduxZustandRecoilHTML5CSS3front-end testingperformance optimization

Soft Skills

collaborationAgile methodologycode reviewscontinuous improvement

Certifications

Bachelor's degreeMaster's degree