Senior Ruby On Rails Engineer (Remote)

pbLocation: /b Fully remote – Europe (CET ±3 hours)br/bSalary: /b €75,000–€105,000/year, depending on location and experiencebr/bContract: /b B2B preferred, flexiblebr/bExperience: /b 5+ yearsbr/bImportant: /b Must be comfortable working with explicit NSFW content. /ph3About the Role /h3pWe’re looking for an experienced bSenior Ruby on Rails Engineer /b to join a fast-growing AI technology company behind an AI companionship platform used by millions worldwide. /ppYou’ll work on scalable, AI-powered applications, developing new features and improving existing functionality alongside the CTO, Tech Lead and wider engineering team. /ppThis is a hands-on individual contributor role for someone who enjoys coding, taking ownership and delivering high-quality solutions in a fast-moving environment. /ph3Key Responsibilities /h3ullipDesign, develop and maintain scalable backend applications using Ruby on Rails. /p /lilipBuild new features and improve existing platform functionality. /p /lilipWork with Product Managers to translate requirements into technical solutions and estimate development efforts. /p /lilipWrite clean, maintainable, well-tested production code. /p /lilipParticipate in code reviews, testing and technical decision-making. /p /lilipTroubleshoot issues and improve application performance, reliability and scalability. /p /lilipCollaborate with distributed engineering, product and infrastructure teams. /p /li /ulh3Requirements /h3ullip5+ years of commercial experience in backend or full-stack software engineering. /p /lilipStrong, hands-on Ruby on Rails experience, ideally recent and in production. /p /lilipExperience building and scaling production applications with real users. /p /lilipAbility to take ownership of features from requirements through development, testing and deployment. /p /lilipPrevious experience in a startup, scale-up or similarly fast-paced environment. /p /lilipStrong problem-solving skills and the ability to balance code quality with delivery speed. /p /lilipExcellent English and experience working with international teams. /p /lilipFull comfort working with uncensored AI companionship products and explicit NSFW content. /p /li /ulh3Tech Stack /h3pRuby on Rails, PostgreSQL, Redis, Hotwire (Turbo and Stimulus) and Tailwind CSS. /ph3Nice to Have /h3ullipExperience with generative AI, LLMs, NLP or machine learning. /p /lilipFamiliarity with modern Rails development practices and AI-assisted coding tools. /p /lilipExperience working with globally distributed engineering teams. /p /li /ulh3What’s on Offer? /h3ullip100% remote working. /p /lilipCompetitive salary, depending on location and experience. /p /lilipDirect collaboration with senior engineering leadership. /p /lilipOpportunity to influence technical decisions and product development. /p /lilip20 days of paid annual leave. /p /lilipLearning and development budget, health and wellbeing support. /p /lilipCompany laptop and equipment. /p /lilipAccess to AI development tools, including Cursor, Claude Code and ChatGPT. /p /lilipAnnual company gathering. /p /li /ul #J-18808-Ljbffr