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The One Studio

Staff Frontend Engineer – Web Platform, Performance

The One Studio

Staff Frontend Engineer developing web platforms and performance at The One Studio. Designing features and evolving front-end architecture for a digital ecosystem.

Posted 6/16/2026full-timeBoulogne-Billancourt • 🇫🇷 FranceLeadWebsite

Tech Stack

Tools & technologies
JavaScriptOpen SourceTypeScript

About the role

Key responsibilities & impact
  • Design and develop high-performance front-end features
  • Define and evolve front-end architecture and design systems
  • Conduct rigorous code reviews
  • Collaborate closely with Product, Design, and Back-end teams
  • Communicate professionally in English

Requirements

What you’ll need
  • 8+ years of front-end development experience
  • Strong proficiency in HTML, CSS, JavaScript, and TypeScript
  • Deep knowledge of the browser and rendering engines
  • Hands-on experience with Web Performance and Core Web Vitals
  • Experience working with Design Systems
  • Ability to review and challenge code across a team
  • Professional-level English required
  • Nice-to-haves: Web Components, open-source contributions, experience in distributed teams

Benefits

Comp & perks
  • Variety of projects, full remote, high autonomy
  • Opportunity to work on high-traffic missions/projects
  • Engineering culture that takes front-end seriously

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
HTMLCSSJavaScriptTypeScriptWeb PerformanceCore Web VitalsDesign SystemsWeb Components
Soft Skills
code reviewscollaborationcommunication