David Kennedy Recruitment
Senior Ruby on Rails Engineer
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David Kennedy Recruitment Job Opportunity
David Kennedy Recruitment is working with a fast-growing AI technology company serving millions of users worldwide that is seeking to onboard a Senior Ruby on Rails Engineer to join their R&D / Engineering team.
This is a hands-on individual contributor role, helping design, build and scale core applications while working alongside the CTO, Tech Lead, Product Managers and SREs. The company's products include adult/NSFW content, so candidates must be fully comfortable working on them.
Position: Senior Ruby on Rails Engineer
Location: Europe, Remote
Employment type: B2B engagement
DUTIES AND RESPONSIBILITIES:
- Design, develop and maintain scalable backend applications using Ruby on Rails
- Collaborate with Product Managers to review requirements and translate specifications into technical solutions
- Prepare technical integration plans, development breakdowns and effort estimates
- Implement new features and improve existing platform functionality
- Write clean, maintainable, well-tested production code
- Take part in pull requests, peer code reviews and testing
- Troubleshoot application issues and improve reliability, performance and scalability
- Contribute to technical decision-making and product roadmap discussions
- Experiment with technologies and approaches that improve product functionality and user experience
- Work with distributed engineering, infrastructure and product teams
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REQUIREMENTS:
- 5+ years' commercial experience as a Backend or Full-Stack Software Engineer
- Strong, recent hands-on Ruby on Rails experience in production
- Ability to independently design and implement complex backend features
- Experience on applications serving thousands or more monthly active users, with an understanding of building reliable, scalable systems
- Experience in technology scale-ups, startups or similarly agile environments, comfortable with changing priorities and tight deadlines
- Proven ability to take features from requirements through development, testing and production
- Excellent spoken and written English, and comfortable working with international remote teams
- Based in Europe, with CET ±3 hours working overlap
- Fully comfortable working on AI companionship products involving uncensored and NSFW content
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BENEFITS:
- 100% remote working, with a B2B contract
- 20 working days of paid time off annually
- Annual company gathering
- Health and wellbeing support
- Learning and professional development budget
- Company laptop and equipment support
- Access to AI development tools, including Cursor, Claude Code and ChatGPT
- Direct collaboration with experienced engineering leadership and the chance to influence technical decisions
- And many more!!!
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