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Senior Backend Developer – C# .NET

København
Company: Puzzel
Published Oct 24, 2025

Role highlights

Contract type

Full Time

Schedule

Permanent

Experience

Senior

Work style

On-site

Key skills

This Senior Backend Developer role requires extensive experience in backend software development, with a strong focus on C# and the .NET framework. The ideal candidate will possess deep expertise in building, maintaining, and optimizing scalable server-side applications using C# within the .NET ecosystem. Key competencies include proficiency in object-oriented programming, asynchronous programming, and knowledge of .NET Core or .NET 5/6+. Experience with RESTful API design and development, microservices architecture, and integration with databases (such as SQL Server or NoSQL databases) is essential. The role demands familiarity with software development best practices, including unit testing, code reviews, continuous integration/continuous deployment (CI/CD), and version control systems like Git. A senior-level professional is expected to contribute to architectural decisions, mentor junior developers, and collaborate effectively with cross-functional teams including frontend developers, QA, and product management. Strong problem-solving skills, the ability to write clean, maintainable code, and experience with cloud platforms (e.g., Azure or AWS) are advantageous. While specific education details are not provided, a senior developer typically holds a degree in computer science or a related field or has equivalent practical experience. Overall, the role calls for a seasoned backend developer with proven capabilities in the C# .NET stack, capable of delivering robust backend solutions in a fast-paced development environment.

About the role

The hiring team has not provided a detailed description yet. Check back soon or follow the company to stay updated.

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Puzzel

Education

Puzzel started in Norway in 1998 with a strong ambition: to become Europe's leading provider of CX solutions. From the beginning, we understood that companie...

Location
København
Employees
Website
www.puzzel.com