Senior Backend Developer (f/m/d)

Who we are looking for

As (Senior) Backend Developer (f/m/d), you will help us scale our market platform to support business growth and to further develop our product portfolio to the next level. You are driven by innovation and new ideas and enjoy working closely within an agile cross‑functional team ready for new approaches to software development.

• Further development of our software solutions to support business growth
• Take responsibility for green‑field projects in finance
• Keep our services running and ensure stable operation
• Working with a supportive IT team using agile working methods as well as colleagues in other cflox departments (e.g. Product, Operations)

Your skills

Must have

• Several years of professional experience
• Passion for emerging (web) technologies
• Strong testing habits (JUnit, Mockito, Cypress, etc.)
• Broad experience with Java frameworks such as Spring, Hibernate
• Experience designing relational databases, practical experience with MySQL/PostgreSQL
• Solid understanding of software paradigms and design principles (OOP/FP, MVC, Dependency injection, Messaging)

Extra Credit for

• Bachelor's or Master's degree in Computer Science or a related field
• Experience with ERP systems, particularly SAP FICO
• Experience working in regulated environments
• Proficiency in JavaScript/TypeScript and React
• Experience with DevOps and process automation
• Experience scaling web applications and database
• Knowledge in financial markets, auctions and corporate finance

What we offer

• Impact: A diverse range of responsibilities in an innovative, modern payment institution in the heart of Hamburg, offering you plenty of room for initiative and personal development.
• Cross‑functional collaboration: Engaging, cross‑departmental projects enrich your day‑to‑day work and give you the opportunity to actively shape your role and work environment.
• Continuous Growth: Regular, structured feedback meetings, individual training opportunities, and an annual development budget that you can manage independently.
• Flexibility meets team spirit: Flexible working hours allow you to balance your professional and personal life - without missing out close collaboration with the team.
• Attractive and appreciative benefits: Fair compensation based on your experience, 30 days of annual leave, and Hamburg's best coffee.