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This job expired on 01/08/2026. It no longer accepts applications.

Front End Engineer – Product Team

Alta Ares · Paris

CDI Hybrid Mid 🇬🇧 English
ReactJS NodeJS Kotlin Python Figma

Job description

About the role

Alta Ares is a deep‑tech startup developing real‑time AI solutions for defence operations. We are looking for a Front‑End Engineer to join the Product team in Paris and help build and scale user‑facing applications across cloud, on‑premise and edge deployments.

Key responsibilities

  • Design, develop and maintain high‑quality web interfaces using ReactJS and modern frontend frameworks.
  • Lead the creation and evolution of a coherent design system and reusable component library together with the UI/UX designer.
  • Integrate front‑end applications with backend APIs, data services and middleware, and contribute to backend code when needed.
  • Ensure performance, reliability and resilience of applications in real‑time, batch and constrained connectivity scenarios.
  • Write unit, integration and end‑to‑end tests, conduct code reviews and uphold code‑quality standards.

Required profile

  • 3‑5 years of professional software engineering experience with a strong focus on frontend development.
  • Background in SaaS or scale‑up environments and ability to work in a small, fast‑moving team.
  • Product‑oriented mindset with attention to UX consistency and visual quality.

Required skills

  • ReactJS
  • NodeJS
  • Kotlin
  • Python (web services)
  • Figma

What we offer

  • Full‑time permanent contract (CDI) with hybrid work arrangement.
  • Opportunity to work on cutting‑edge AI defence products for NATO‑aligned customers.
  • Collaborative environment with a focus on technical excellence and product impact.

Questions fréquentes

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Le contrat proposé est un CDI basé à Paris.

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Published 3 months ago

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Alta Ares

Paris