Ruby/JS Full Stack Developer

Location: Paris, Paris, France

Department: Engineering

Type: Full Time

Min. Experience: Mid Level

Launchmetrics Technologies is a company that lets brands and agencies accelerate the launch of their products to market and streamline the way they operate. We work with thousands of businesses worldwide, delivering reliable, effective and innovative solutions that have redefined industry standards. We specialize in efficient sample, contacts and event management solutions. Our system was built to simplify all aspects of the fashion industry workflow and we are now considered the standard with designers including Gucci, Dior, YSL, and DVF and PR powerhouses KCD Worldwide, Karla Otto, and BPCM.

As a Full Stack Developer at Launchmetrics Technologies, it’s all about end-to-end ownership. You'll be responsible for designing, developing, and deploying new features and frameworks, focusing on high-performance implementations without neglecting the user experience. You’ll work in JavaScript on the client, Ruby on the server, and a number of languages, frameworks, and tools in between. You will be responsible for writing clean HTML and CSS. You will work closely with other developers, Lead UI/UX manager, Product Owners and Product Managers in a collaborative and energetic environment. Here, we iterate quickly and refactor frequently, writing clean and simple code to solve critical business needs – and to provide the best possible experience for Launchmetrics users. You will be an important part of a fast growing business in the luxury fashion industry.



  • Creating web applications using Ruby on Rails, Javascript, HTML, CSS, and occasionally other languages.
  • Building and maintaining a REST API used by Web and Mobile clients
  • Architect efficient database schemas for new implementations or improve existing ones.
  • Working closely with product management and ui/ux managers to define user requirements and translating them into reliable, intuitive features.
  • Evangelizing code quality through writing well architected, structured code, unit tests, while following best industry practices.
  • Refactoring, optimizing and constantly driving for improved efficiency and code health.
  • Implement or customize web interfaces using Javascript, CSS, and HTML.
  • Building and maintain backend system for internal app-to-app interaction.


Minimum qualifications:

  • Fluent in English
  • Knowledge of Ruby on Rails.
  • Knowledge of web technologies such as Javascript, CSS, HTML.
  • Knowledge of NoSQL databases such as MongoDB or Redis.
  • Understanding of MVC and experience frameworks.
  • Experience using version control systems: Git, Mercurial, SVN etc.
  • Excited to solve complex problems in sophisticated web applications as part of a fast-paced team.
  • Familiar with Agile methodologies.
  • Ability to adapt, solve problems, self-improve and suggest new ways of improvement.
  • Ability to estimate workload.
  • At least 4 years of experience.


Preferred qualifications:

  • Experience with Agile development processes: Scrum
  • Understanding of Object Oriented Design, Design Patterns, Service Oriented and Restful architecture as well as all SOLID principles.
  • Experience with modern scripting languages as ES6 or TypeScript.
  • Experience with Javascript frameworks such as React, Angular or Vue.js.


What do we offer?

  • A fantastic opportunity to participate in the development of a revolutionary company open to what’s trending in all businesses worldwide.
  • An incredible work environment – fun, casual, fast-paced with team lunches and outings
  • A passionate, driven and fun team that is as eager to learn new things as you are.
  • Health insurance offered
  • Tickets Restaurant
  • Plan Epargne Entreprise
  • Comité d’Entreprise


To apply, please send your cover letter & résumé to :



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