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Senior Ruby on Rails Engineer (Remote)
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Location: Fully remote – Europe (CET ±3 hours)
Salary: €75,000–€105,000/year, depending on location and experience
Contract: B2B preferred, flexible
Experience: 5+ years
Important: Must be comfortable working with explicit NSFW content.
About the Role
We’re looking for an experienced Senior Ruby on Rails Engineer to join a fast-growing AI technology company behind an AI companionship platform used by millions worldwide.
You’ll work on scalable, AI-powered applications, developing new features and improving existing functionality alongside the CTO, Tech Lead, and wider engineering team.
This is a hands-on individual contributor role for someone who enjoys coding, taking ownership, and delivering high-quality solutions in a fast-moving environment.
Key Responsibilities
- Design, develop, and maintain scalable backend applications using Ruby on Rails.
- Build new features and improve existing platform functionality.
- Work with Product Managers to translate requirements into technical solutions and estimate development efforts.
- Write clean, maintainable, well-tested production code.
- Participate in code reviews, testing, and technical decision-making.
- Troubleshoot issues and improve application performance, reliability, and scalability.
- Collaborate with distributed engineering, product, and infrastructure teams.
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Requirements
- 5+ years of commercial experience in backend or full-stack software engineering.
- Strong, hands-on Ruby on Rails experience, ideally recent and in production.
- Experience building and scaling production applications with real users.
- Ability to take ownership of features from requirements through development, testing, and deployment.
- Previous experience in a startup, scale-up, or similarly fast-paced environment.
- Strong problem-solving skills and the ability to balance code quality with delivery speed.
- Excellent English and experience working with international teams.
- Full comfort working with uncensored AI companionship products and explicit NSFW content.
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Tech Stack
- Ruby on Rails
- PostgreSQL
- Redis
- Hotwire (Turbo and Stimulus)
- Tailwind CSS
Nice to Have
- Experience with generative AI, LLMs, NLP, or machine learning.
- Familiarity with modern Rails development practices and AI-assisted coding tools.
- Experience working with globally distributed engineering teams.
What’s on Offer?
- 100% remote working.
- Competitive salary, depending on location and experience.
- Direct collaboration with senior engineering leadership.
- Opportunity to influence technical decisions and product development.
- 20 days of paid annual leave.
- Learning and development budget, health, and wellbeing support.
- Company laptop and equipment.
- Access to AI development tools, including Cursor, Claude Code, and ChatGPT.
- Annual company gathering.
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