> Markdown version of [/jobs/ext/31157-senior-product-engineer-ruby-rails](https://www.wearedevelopers.com/jobs/ext/31157-senior-product-engineer-ruby-rails). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # (Senior) Product Engineer - Ruby/Rails - **Company:** Ablefy - **Location:** Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Agile Methodology, Artificial Intelligence, Continuous Integration, Github, PostgreSQL, NoSQL, Object-Oriented Software Development, Ruby on Rails, Ruby, Web Applications, Workflow Management Systems, Circleci, Test-Driven Development (TDD), Large Language Models, Prompt Engineering, Git - **Published:** May 22, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=44222677cefe1914 ## About the Role Do you have experience in Writing skills?, Enthusiastic drivers. You fully own your projects and get them done. You know when to ask for help. "Are we there yet?" is the wrong question. Optimistic problem solvers. Things get hard sometimes: scaling, complex product work, a flood of edge cases, features that touch multiple teams. You won't get disheartened. You'll collaborate, iterate, and ship your way through it. Grown ups. We're an international bunch, and one thing unites us: everyone is kind, considerate, and professional. This isn't about age or experience. It's about being low-ego, flexible, and respectful. Genuine builders. People who love building software and would still be doing it without a paycheck. If that sounds like you, we should talk., * 4+ years of commercial experience with Ruby on Rails. * Solid understanding of object-oriented programming and scalable application design. * Deep experience with Git. * An eye for clean code and a habit of writing it. * Strong problem-solving skills and comfort with ambiguity. * Understanding of agile software development. * Fluent in English. Nice to have * Experience with test-driven development. * Familiarity with CI/CD (CircleCI, GitHub Actions). * Hands-on experience with PostgreSQL and NoSQL databases. * Experience building high-load systems. * Background in FinTech or e-commerce. * Familiarity with prompt engineering, AI workflow tools, LLMs, vector databases, or building AI agents. ## Description Our engineering team builds scalable, user-centric software for digital entrepreneurs in the DACH region and beyond. We ship fast, iterate constantly, and care deeply about the people using what we build., * Own features end-to-end: from understanding the problem to shipping the solution and making sure it actually works for users. * Design, build, and maintain high-quality Ruby code using best practices. * Build back-end components for web applications and integrate AI-powered capabilities where they create real value. * Collaborate with designers, product managers, and other engineers to figure out what to build and why. * Work on technical feasibility assessments, architecture decisions, and process improvements. * Test for performance, responsiveness, and security. * Stay curious about new technologies and push for their adoption when it makes sense. ## Related Videos - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Fireside Chat with Werner Vogels, VP & CTO, Amazon.com & Daniel Gebler, CTO at Picnic](https://www.wearedevelopers.com/videos/1405-fireside-chat-with-werner-vogels-vp-cto-amazon-com-daniel-gebler-cto-at-picnic) - [Fireside Chat with David Heinemeier Hansson](https://www.wearedevelopers.com/videos/980-fireside-chat-with-david-heinemeier-hansson) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)