(Senior) Product Engineer – Ruby/Rails (F/M/X)

About us At ablefy, we believe that passion can turn into a career for anyone! With our cloud-based SaaS platform solution, ablefy.io, we offer an easy and efficient way for everyone to create and sell digital products and online courses. More than 70,000 entrepreneurs have already placed their trust in our expertise! Our story began in 2015, and for the first five years, we grew organically, becoming a profitable company with a team of around 60 employees. Then, in September 2021, we raised $38 million in series A funding led by Target Global, with participation from Partech Ventures and Avid Ventures. Since then, our company size, products, features, and services have more than doubled and we have become the No. 1 platform for coaches, consultants, speakers, and service providers in the DACH-region. We continue to grow to this day – that's why we're looking for you. Our mission; to build software that empowers everyone to start, run and grow a successful digital business - borderless, is supported by our high performance principles that are crucial to our success: Radical Collaboration Constructive confrontation Adaptive execution Collective ambition Evolving expertise Empathetic leadership About the role 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. Responsibilities 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. Who we're looking for 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. Qualifications 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. ** This role can be based in our Berlin office in a hybrid setup for candidates located in Berlin, or offered as a fully remote role for those based within European Union. Benefits Paid time off – 30 vacation days. A competitive salary. A personal training and development budget of €1,500 per year. Responsibility and trust from day one. Individual coaching and further training to support you in your development. A free BVG ticket. Employee discounts at numerous companies (e.g. at the gym or in online stores). Pension program with company match up to 30% of employee contributions. A culture of equity and inclusion where you are appreciated for the person you are. Diversity & Inclusion At ablefy, we embrace our differences, as they are our greatest strength. We recognize that everyone has a unique perspective based on their experiences, identities, and thought processes, and we strive to create an inclusive environment for all. Discrimination based on race, religion, color, national origin, gender identity or expression, sexual orientation, age, marital status, disability status, or any other aspect that makes you unique is not tolerated at ablefy. We aim to make growth accessible to everyone! We know that no candidate checks every single box, and that’s okay! If you’re excited about this role and think you can bring something valuable to our team, we encourage you to apply—even if you don’t meet every requirement. We’d love to hear from you! AI at ablefy As an AI-first company, we put intelligent technology at the heart of everything we do. AI is part of how we build, learn, and grow together. It helps us work smarter, move faster, and focus on creating real impact. We believe the strongest results come from combining thoughtful technology with curious, driven people — and we’re excited to shape what’s next, together.