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David Kennedy Recruitment
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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.
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
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
20 working days of paid time off annually
Learning and professional development budget
Access to AI development tools, including Cursor, Claude Code and ChatGPT
Direct collaboration with experienced engineering leadership and the chance to influence technical decisions
Originally posted on Himalayas
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