Fullstack Developer (Ruby on Rails / Python)

Fullstack Developer (Ruby on Rails / Python / AI) – Hybrid, Paderborn

About Us benfido GmbH, part of the adnext Holding group, builds MeinPlus and other Beyond Banking solutions for banks within the Genossenschaftliche FinanzGruppe, including projects with DZ BANK and DG nexolution. We're growing our engineering team and looking for a Fullstack Developer to help us build and scale our SaaS platforms.

Your Role

• Design and build new features across our SaaS platforms, backend and frontend
• Develop and maintain our Rails applications, including data modeling with PostgreSQL
• Build and maintain infrastructure using Docker and AWS (EC2, S3, SES, ACM)
• Integrate AI capabilities, e.g. based on AWS Bedrock and LLMs
• Contribute to dashboards and data analysis, e.g. with Superset
• Take part in code reviews and technical discussions, and help raise the quality of our codebase

What You Bring

• Experience with Ruby on Rails and/or Python
• Solid grasp of relational databases, ideally PostgreSQL
• Experience with Docker and cloud infrastructure, ideally AWS
• Good understanding of REST APIs and modern software architecture
• A plus: initial experience with AI infrastructure and LLMs (e.g. AWS Bedrock, prompt engineering, retrieval systems)
• Structured, independent way of working and enjoyment of technical discussion
• Good communication skills in English; German is a plus

We care more about how you think and work than which degree you hold. Career changers with relevant hands-on experience are explicitly welcome. Important: This is a hybrid role based on-site in or near Paderborn. We expect you to be in our office 2–3 days per week, so you should live within commuting distance or be willing to relocate.

Nice to Have

• Experience in the fintech industry
• Knowledge of financial products or the banking landscape
• Understanding of security and compliance requirements (GDPR, EU AI Act) in the financial sector

What We Offer

• Hybrid work model (2–3 days per week in our Paderborn office, remote otherwise)
• Competitive salary based on experience and skills
• A team with short decision paths and real ownership
• Work on a platform used in real projects with major banks of the Genossenschaftliche FinanzGruppe
• Regular team events
• Room for personal and professional growth

How to Apply Send us your CV, ideally with a portfolio and a short cover letter, to jobs@benfido.com with the subject line "Fullstack Developer Application".

We look forward to hearing from you!

benfido GmbH · Grüner Weg 8a · 33098 Paderborn, Germany

Art der Stelle: Vollzeit

Gehalt: 60.000,00€ - 80.000,00€ pro Jahr

Leistungen

• Firmenevents
• Flexible Arbeitszeiten
• Homeoffice-Möglichkeit
• Kostenlose Getränke

Arbeitsort: Zum Teil im Homeoffice in 33098 Paderborn