David Kennedy RecruitmentHiring

Senior Ruby on Rails Engineer

  • Remote, France
  • Contract
  • Senior
  • Posted 2 weeks ago
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In one line

Hands-on backend role on a small R&D team, building and scaling core Rails applications; remote across Europe on a B2B contract.

About the role

The team works on AI companionship products that serve millions of users, including uncensored and adult content, so comfort with that material is required. You would work closely with the CTO, tech lead, product managers and SREs.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, France
Seniority
Senior
Employment
Contract
Working hours
CET plus or minus 3 hours overlap
Skills
Ruby on Rails, Ruby, Testing, Scalability
Posted
9 Oct 2026
Last checked
29 Oct 2026

What you will do

  • Design, build and maintain backend applications in Ruby on Rails
  • Review requirements with product managers and turn specs into technical plans
  • Write integration plans, development breakdowns and effort estimates
  • Ship new features and improve what already exists on the platform
  • Write clean, tested production code and take part in code reviews
  • Debug issues and work on reliability, performance and scale

What they look for

  • 5+ years of commercial backend or full-stack engineering experience
  • Recent hands-on Ruby on Rails work in production
  • Confidence to design and ship complex backend features alone
  • Experience with apps used by thousands or more monthly active users
  • Startup or scale-up background, at ease with shifting priorities
  • English strong enough for international remote teamwork

Benefits

  • Fully remote with a B2B contract
  • 20 paid days off each year
  • Annual company gathering
  • Health and wellbeing support
  • Learning and development budget

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Claude

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ChatGPT

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Connector URL
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Muse

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How to connect

Questions about this job

Is this job fully remote, and from where?

Yes, it is listed as remote, aimed at candidates in France. On hours, the posting says: CET plus or minus 3 hours overlap.

What does this job pay?

No pay range is stated in the posting.

What experience is needed?

It is a senior role. The posting asks for: 5+ years of commercial backend or full-stack engineering experience; recent hands-on Ruby on Rails work in production; confidence to design and ship complex backend features alone. Skills it names include Ruby on Rails, Ruby, Testing, Scalability.

How do I apply with Keywordise AI?

Click Apply with Keywordise AI, create an account and upload your CV. Your CV and cover letter are written for this job from what you have really done, then Keywordise applies for you. Trial: 7 days, no card.

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David Kennedy RecruitmentRemote, France
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