Senior Backend Engineer (C#/.Net) (m/f/d)

Job Description

Our solutions contribute to flexible and customer-friendly payment alternatives. We offer consumers the opportunity to choose when and how they want to pay, whilst guaranteeing a steady and predictable cashflow for merchants. Our products make us proud, but not content and we have high ambitions for our existing as well as upcoming products. We have a strong commitment to building the future of FinTech — human-centric and sustainable. With investments to back it up. You will be part of a new and quickly growing product & tech organisation, having the opportunity to shape our new teams as well as build the next revolutionary products.

You will join one of our product teams and on a daily basis:

• Design, develop, test, and ship robust, maintainable, and readable software, applications, APIs, and other workflows
• Initiate, participate in, and communicate technical architecture designs
• Attend regular scrum ceremonies as a member of an agile cross-functional team
• Analyze, discuss, and implement business requirements while maintaining good documentation of the systems and components you create
• Bring in industry standards and best practices to continually improve our codebase and architecture
• Make a positive impact on our engineering culture by adopting, implementing, and providing feedback on both organisational and industry standards and practices

Requirements

• Hands-on experience with C# and the .NET framework, with a minimum of 5 years of experience
• Experience in developing, shipping, and maintaining cloud-based applications
• Good knowledge and experience working with microservices and distributed architectures
• A deep understanding and knowledge of RESTful APIs
• Years of experience using relational databases, preferably SQL Server. Additionally, working knowledge of ORMs, preferably Entity Framework
• Familiarity with cloud development; experience with Azure is a bonus
• Practical knowledge of using messaging platforms in a distributed architecture (e.g., RabbitMQ, Kafka)
• Fluent English

Nice to have

• Knowledge and experience on a FinTech and banking industry is a plus
• Hands-on experience with AI-assisted development tools such as Claude, Cursor, or GitHub Copilot, and sound judgement about reviewing and testing what they produce, is a plus