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Full Stack DevelopmentOnsite

Senior Full Stack Developer (JavaScript)

Seyos - Company

Rennes-Sud-Ouest, Rennes, ๐Ÿ‡ซ๐Ÿ‡ท FranceFull-time - Senior (4-7 years)0 applicantsCloses Jun 16, 2026

Salary

EUR 50,000 - 65,000 / year

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Job description

Job details

  • Location: Rennes-Sud-Ouest, Rennes
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: EUR 50,000 - 65,000 per year

Role overview

Seyos seeks a Senior Full Stack Developer to build and enhance their phygitale communication platform combining digital tools with physical touchpoints. You'll work on modules like internal news, event organization, document sharing, and more.

Job details

Based in Rennes, this full-time position offers a salary of โ‚ฌ50,000-โ‚ฌ65,000. The role is onsite and requires senior-level experience with JavaScript, React, Node.js, and RESTful APIs to develop cross-platform solutions for internal communication.

Responsibilities

  • Develop and maintain cross-platform communication modules (web, mobile, kiosks)
  • Collaborate with UX/UI teams to implement intuitive interfaces
  • Optimize application performance and scalability

Requirements

  • 4+ years full stack JavaScript development experience
  • Proficiency in React and Node.js frameworks
  • Experience with RESTful API design and implementation

Benefits

  • Work on innovative phygitale communication solutions
  • Collaborative environment with regular professional development

Keywords

JavaScriptNode.jsReactREST APIsAgileFull StackWeb DevelopmentUI/UXAPI IntegrationDigital Solutions