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.

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.

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.

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).
A culture of equity and inclusion where you are appreciated for the person you are.
Pension program with company match up to 30% of employee contributions.

Ablefy is hiring a (Senior) Product Engineer – Ruby/Rails (F/M/X)