ALTEN Mexico

Engineering and technology consulting services

Senior Front-End Developer

Frontend EngineeringConfirmed live in the last 24 hours

Full-timeLyon, France€45k - €50k /yr

About the Job

Requirements

A Master’s degree in computer science or a degree from an engineering school.
At least 7 years of front-end development experience.
Experience with Vue.js and Nuxt 4.
Proficiency with TypeScript and Pinia.
Experience with automated testing using Jest, Vitest, Cypress, or Playwright.
Knowledge of digital accessibility standards, including RGAA and WCAG.
Professional proficiency in written and spoken French.

Responsibilities

Migrate the legacy front end from Vue 2 to Nuxt 4 progressively, route by route, integrating Marcel Design System Web Components.
Modernize user journeys, including editorial pages and cart and checkout flows, by developing features with Vue 3 Composition API, script setup, TypeScript, and Pinia.
Maintain the stability of the shared foundation through unit, integration, and regression testing using Jest, Vitest, Cypress, or Playwright.
Optimize front-end performance through lazy loading, Core Web Vitals improvements, and reducing asset size.
Apply digital accessibility standards, including RGAA and WCAG.
Document migrated components and Design System integration practices.

Description du poste

Pour renforcer son pôle Digital Factory E-Commerce, Marketing & Relation Clients, la Direction des Opérations Digitales de notre client recherche un Développeur Front-End Sénior spécialisé en Vue.js / Nuxt, sous la responsabilité du Tech Lead de l’équipe Core Team Front.

Missions principales

Intervenir sur la migration progressive du front historique (Vue 2) vers Nuxt 4, route par route, en intégrant les Web Components du Design System Marcel.
Contribuer à la modernisation des parcours utilisateurs (pages éditoriales, tunnels panier et checkout) en développant des fonctionnalités sous Vue 3 (Composition API, script setup), TypeScript et Pinia.
Garantir la stabilité du socle partagé via des tests unitaires, d’intégration et de non-régression (Jest/Vitest, Cypress/Playwright).
Optimiser les performances Front-End (Lazy loading, Core Web Vitals, réduction du poids des assets).
Appliquer les normes d’accessibilité numérique (RGAA / WCAG) pour des solutions inclusives.
Documenter les composants migrés et les bonnes pratiques d’intégration du Design System.

Qualifications

Formation / Expérience

Diplômé d’une école d’ingénieurs ou titulaire d’un Master (Bac+5) en informatique.
Minimum 7 ans d’expérience en Développement Front-End

Compétences techniques

Vue.js / Nuxt 4
TypeScript
Pinia
Tests automatisés (Jest, Vitest, Cypress, Playwright)
Accessibilité (RGAA / WCAG)

Qualités personnelles

Autonomie et rigueur
Esprit d’équipe et collaboration active
Capacité d’analyse et résolution de problèmes
Respect des délais et excellence technique

Langues et mobilité

Maîtrise professionnelle du français (écrit et oral).
Pas de déplacements prévus.

Informations supplémentaires

Et maintenant ?

Compensation: 45000 to 50000 (EUR) (YEARLY)

About the Company

ALTEN Mexico

Engineering and technology consulting services

ALTEN Mexico provides engineering and technology consulting services by supplying highly specialized engineers who embed within client teams to work on complex projects. The way it works is by offering a flexible pool of talent for research and development needs, allowing clients to access experts without committing to permanent hires. The company differentiates itself through a focus on embedded engineering consultants, serving sectors like telecommunications, aerospace, and information systems, and by expanding its reach via organic growth and acquisitions across Europe and globally. Its goal is to help clients access top engineering expertise efficiently while growing the business through deliberate geographic and service expansion.

Company size: Not listed
Company stage: IPO
Headquarters: Boulogne-Billancourt, France
Founded: 1988

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