Senior Software Engineer (Ruby & Python) (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, we've doubled in size!

Since then, our company size, products, features, and services have doubled and we have become Germany's No. 1 platform for coaches, consultants, speakers, and service providers. We continue to grow to this day – that's why we're looking for you.

Our core values are crucial to our success:

• Ownership - Lead by Example, Accountability, Mission first
• Be Curious & Drive Change - Embrace Change & Growth, Never Assume, Lead with a Vision for Change
• Customer-Obsessed - Champion Customer-Centric Decision-making, Deliver Meaningful Value, Go Above and Beyond
• As One Tribe - Embrace Differences, Collaboration over Hierarchy & Competition, Build Trust through Honesty, Integrity & Respect

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!

Description

We're building something bold inside ablefy — a fast-moving AI Incubator team focused on launching entirely new products that drive revenue beyond the core. Think of it as a startup within a scale-up: small, empowered, and business-first.

As our Full-Stack/Backend Engineer, you'll help shape 0→1 products where AI meets commerce — with direct impact on seller success, customer journeys, and our bottom line. You’ll work side by side with product, design, and growth leads who move fast, love shipping, and are obsessed with finding signal in noise.

Responsibilities

• Lead engineering efforts for greenfield product builds from idea to live product.
• Drive technical decision-making on architecture, stack, scalability, and deployment.
• Work hands-on in Ruby on Rails and Python, owning both backend services and integrations.
• Deploy and maintain systems in cloud environments (AWS, Docker, Heroku, etc.).
• Collaborate closely with product, design, and growth to test, learn, and iterate fast.
• Build and integrate AI-powered capabilities that create user and platform value.
• Contribute directly to business strategy by connecting tech decisions to MRR outcomes.

Requirements

• 5+ years of backend experience with deep expertise in Ruby and 2+ years in Python.
• Strong hands-on experience building and scaling backend systems from scratch.
• End-to-end understanding of cloud deployment, CI/CD, and devOps basics.
• Comfortable navigating fast, iterative cycles with shifting priorities.
• Entrepreneurial mindset with a strong sense of product ownership.
• Clear communicator who thrives in collaborative, cross-functional teams.

Nice to Have

• Experience working with LLMs, vector databases, or building AI agents.
• Familiarity with prompt engineering or AI workflow tools.
• Contributions to open-source or incubator/startup experience.
• Prior experience in the FinTech or e-commerce industry.
• Knowledge of security best practices for web applications.
• Experience with machine learning or AI integration in backend systems.

Benefits

• Paid Time Off - 30 vacation days.
• A competitive salary.
• A personal training & development budget of € 1,500 per year.
• Responsibility and trust from day 1.
• 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.
• A Culture of equity and Inclusion where you are appreciated for the person you are.