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Responsibilities
Design, build, and maintain high‑quality Ruby code using best practices.
Work on technical feasibility assessments, developing new solutions, architecture, and process improvements.
Build back‑end components for web applications.
Collaborate with other developers and stakeholders to understand requirements and develop solutions.
Test applications for performance, responsiveness, and security.
Participate at all stages of the development lifecycle.
Maintain existing applications and make necessary updates and enhancements.
Stay informed about relevant new technologies and drive their continuous adoption and integration into the design.
Build and integrate AI‑powered capabilities that create user and platform value.
Requirements
At least 4+ years of commercial experience with Ruby on Rails.
Experience with architecture decisions and development process improvements.
Solid understanding of object‑oriented programming.
Understanding of fundamental design principles behind a scalable application.
Deep experience with version control systems like Git.
You have an eye and passion for clean code.
Problem‑solving skills.
Understanding of agile software development.
Fluent in English.
It will be a plus if you have:
Experience in test‑driven development.
Good understanding of CI/CD process (Circle CI, GitHub Actions).
Hands‑on experience with PostgreSQL & NoSQL databases.
Experience in building high‑load systems.
Experience in the FinTech or e‑commerce industry.
Familiarity with prompt engineering or AI workflow tools.
Experience working with 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 the European Union.
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.
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Sprachkenntnisse
- English
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