Senior Ruby on Rails Backend Engineer

Comeen is seeking a Ruby on Rails senior developer to join our development team. You will work on workplace features such as meeting room management and desk booking, impacting thousands of employees worldwide!You will design robust backend systems, integrate Google Workspace and Microsoft 365, lead architectural decisions, ensure code quality with RSpec,...

A tech company based in Paris is looking for a Senior Rails Engineer to lead the Ruby on Rails framework of their B2B SaaS product. You will be responsible for the backend systems, crafting APIs, and ensuring product scalability. Ideal candidates will have extensive experience in backend development and a knack for building complex dashboards. This role...

We're Comeen, our mission is to create a seamless experience between people and workplaces. We help 300+ companies worldwide to implement today’s workplace environment with Communication and Workplace Management tools. We have worldwide customers from fast-growing startups to large enterprises, such as: Veolia, Sanofi or Imerys. Our SaaS platform is...

We're looking for a Senior Rails Engineer to own and scale the Ruby on Rails layer of our AI-native data platform. You'll be responsible for the core B2B SaaS experience: dashboards, APIs, auth, permissions, and the product surface that both humans and AI agents rely on every day. Requirements 5+ years of backend engineering experience, with deep experience...

MonDocteur is seeking a Senior Software Engineer to enhance the Patient Online Booking feature. Responsibilities include defining features, leading technical visions, and ensuring scalability. Ideal candidates should be backend experts in Java with knowledge of Ruby on Rails, and possess a user-first mindset. The position offers health insurance, mental...

Le Wagon in Paris (11e arrondissement) is seeking a Senior Software Engineer to join its Engineering team. You will work with senior engineers across Paris, Tours, and Madrid to build tools and features using Ruby on Rails, Redis, PostgreSQL, and modern CI/CD practices.You will own features end-to-end, lead deployments, mentor colleagues, and help shape the...

À proposSimundia, c'est une équipe d'une quarantaine de talents, ultra motivés et engagés autour d'une mission qui nous fait vibrer : permettre à chacun de transformer ses aspirations en actions !Notre solution ?Le coaching situationnel®, une expérience de coaching digital à la fois flexible, concret et efficace.Comment ça marche ?C'est simple : 3h...

Sweep is seeking a Senior Fullstack Engineer (freelance) to contribute to our Sustainability Data Intelligence Platform. You'll own features end-to-end, from database design and backend services to a React/TypeScript UI, shaping scalable data pipelines that help enterprises track greenhouse gas emissions and drive decarbonization.Requires 5+ years shipping...

We are hiring a Senior Software Engineer in Le Wagon's Engineering team. The job is based in Paris (11e) and requires speaking French and English fluently. We are a team of 5 Software Engineers based in Paris, Tours and Madrid. Our mission is to build the right tools and features to support Le Wagon's consolidation and growth. We work in cycles and follow...