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team.blue

Full Stack Developer – RoR, React Native

team.blue

Full Stack Developer role for Kolsquare, building a new influencer marketing B2C product. Involvement in architecture decisions and feature development across web and mobile.

Posted 7/4/2026full-timeRemote • 🇫🇷 FranceMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
ReactReact NativeRubyRuby on Rails

About the role

Key responsibilities & impact
  • Responsible for the technical execution and quality of our new B2C product: Full Stack Development.
  • Build and maintain features end-to-end - from Rails API endpoints to React Native screens.
  • Contribute to architecture decisions and uphold high standards through code reviews and testing.
  • Work with social media APIs (Instagram, TikTok, Facebook) and third-party services for integrations.
  • Participate in deployment pipeline and ensure product stability and performance in production.
  • Collaborate closely with product and design to turn user needs into technical solutions.

Requirements

What you’ll need
  • Minimum of 3 years of experience in Ruby / Rails.
  • Relevant experience with React (preferably Native).
  • Ability to shape the technical direction of early-stage projects.
  • Autonomous, organized and proactive, with demonstrated ability to prioritize and manage multiple projects.
  • Knowledge on how to leverage AI to optimize output.
  • Empathetic and love working with people from different backgrounds.
  • Excellent communication skills, able to collaborate effectively across teams.
  • Fluent in English.

Benefits

Comp & perks
  • Full flexibility: full remote work with European hubs and 400+ coworking spaces worldwide.
  • Monthly and quarterly highlights in person to get together with other Kolsquarians for great team building events.
  • A package linked to the market that will not be based on your location.
  • The stability and resources of a profitable group, with the agility of a scale-up.
  • Continuous training opportunities and career development support.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
Full Stack DevelopmentRubyRailsReactAPI DevelopmentTestingArchitecture DecisionsAI Optimization
Soft Skills
CommunicationCollaborationOrganizational SkillsProactivityEmpathy