Senior Ruby on Rails Engineer

About This Role

This senior individual contributor role involves designing, building, and scaling core applications for a fast-growing AI technology company that serves millions of users worldwide. The engineer will work closely with the CTO, Tech Lead, Product Managers, and SREs, contributing to technical decisions and product roadmap discussions. The company's products include adult/NSFW content, so candidates must be comfortable working on them.

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

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

Benefits

• 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

Important Details