> Markdown version of [/jobs/ext/25193-senior-software-engineer-ruby-on-rails-fullstack](https://www.wearedevelopers.com/jobs/ext/25193-senior-software-engineer-ruby-on-rails-fullstack). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer - Ruby on Rails (Fullstack)

- **Company:** Découvrir Les Formations
- **Location:** Paris, France
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Agile Methodology, Artificial Intelligence, Amazon Web Services, Software Quality, Programming Tools, PostgreSQL, Ruby on Rails, Ruby, Data Streaming, Reliability of Systems, Backend, Information Technology, Front End Software Development
- **Published:** May 20, 2026
- **Apply:** https://www.jobtomove.fr/offres/rail-europe/senior-software-engineer-ruby-rails-fullstack

## About the Role

* You are a senior, hands-on software engineer with a strong product mindset.
 * Fullstack Engineer: Comfortable working across backend and frontend in a Ruby on Rails environment, with a clear strength on backend topics and a genuine interest in frontend development.
 * Problem Solver: Able to understand root causes, propose pragmatic solutions, and make sound technical trade-offs.
 * Craft-Oriented: You value code quality, testing, and long-term maintainability.
 * Product-Oriented: You care about what you build, why it is built, and the impact it has on users and the business.
 * AI-assisted development tools: You have hands-on experience using AI-powered developer tools in your daily work. You are comfortable integrating them into your workflow and contributing to their adoption within the team.

Must-Haves

 * 8+ Years of Engineering Experience: A minimum of 8 years of progressive work
experience as a software engineer.

 * Ruby and Ruby on Rails: Extensive, in-depth knowledge and hands-on experience with Ruby and Ruby on Rails.
 * Frontend Development Experience: Proven experience with modern frontend
development.

 * English Fluency: Mandatory professional working proficiency in English (our daily
working language).

Nice-to-Haves

 * BSc in Engineering, Computer Science, or a relevant field.
 * Experience with or strong interest in Hotwire.
 * Experience with PostgreSQL.
 * Familiarity with AWS.
 * Experience with Agile methodologies.

## Description

software features using Ruby on Rails, contributing across backend and frontend with a strong backend core.

 * Full Lifecycle Participation: Participate in all stages of the development lifecycle, from technical design to implementation, testing, deployment, and monitoring.
 * Problem Solving & Optimization: Identify and help solve technical challenges related to data flows, performance, scalability, and overall system reliability.
 * Technical Excellence: Write clean, modular, and maintainable code, supported by appropriate testing and aligned with engineering best practices.
 * Collaborative Contribution: Work closely with engineers, Product Managers, and the Engineering Manager to deliver cohesive and valuable product features.
 * Knowledge Sharing & Growth: Continuously learn, share knowledge with the team, and contribute to a culture of continuous improvement.
 * Innovation & Engagement: Take part in team initiatives such as monthly hack days.


## Related Videos

- [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson)
- [Recruitment Reinvented: Bold strategies and the $10K signing incentive](https://www.wearedevelopers.com/videos/1068-recruitment-reinvented-bold-strategies-and-the-10k-signing-incentive)
- [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [Your next 10x engineer isn't in your city. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly)

## Related Articles

- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)