Backend Engineer - C#/.NET

Job Description

We are looking for a 

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

Join our team at our location in Stockholm – hybrid working conditions available. 

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. 

You’ll be part of a product team building and evolving reliable, scalable software in a modern engineering environment. We’re looking for someone who enjoys solving complex problems, cares about code quality, and wants to have a real impact on both our products and engineering practices.

What you’ll be doing:

• Design, develop, test, and ship robust, maintainable, and readable software, applications, APIs, and workflows
• Contribute to technical architecture  design decisions
• Work as part of an agile, cross-functional team and actively participat in Scrum ceremonies
• 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 organizational and industry standards and practices

Qualifications

What you bring:

• 5+ years of hands-on software engineering experience with C# and .NET
• Strong experience building and maintaining backend services
• A solid understanding of RESTful APIs 
• Practical experience with data access patterns and ORMs, ideally Entity Framework
• Good knowledge of relational databases, preferably SQL Server
• Familiarity with distributed architectures, including service-to-service communication and asynchronous messaging
• Experience with cloud-hosted and containerized applications, ideally Azure and Docker; Kubernetes is a plus
• Experience troubleshooting application issues using logs and monitoring tools 
• Practical experience using AI-assisted development tools (e.g. GitHub Copilot, Claude Code, Cursor) to speed up coding, testing, and debugging, along with sound judgment about when and how to rely on AI-generated output.
• Exposure to Infrastructure as Code practices is a plus
• Fluent English 
• FinTech or banking domain knowledge is a big plus

Please note: you need to have EU citizenship or a valid work permit for Sweden.

Additional Information

Disclosure requirements pertaining to the collection of your personal data:

Responsible for processing the information provided in your application is the company specified in the job advertisement, with its registered office as indicated. The company processes your data for the purpose of establishing an employment relationship on the basis of Art. 6 (1) b GDPR / Section 26 (1) sentence 1 BDSG.

The retention period for your data is determined by the statutory time limits applicable in the respective country, beginning upon completion of the recruitment process. You can find these here.

You can contact the company’s Data Protection Officer at the above-mentioned postal address. 

Further information on data protection and your rights can be found here.
 

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