Optimus Search has partnered with an industry leading organisation and Microsoft Gold Partner status within the Healthcare Sector that maximises the effectiveness of crucial monetary CRM solutions. This forward-thinking firm supports their customers in a world of rapid digital, monetary and physical change. As well as their esteemed position in the industry, they are also a leader in employee satisfaction; boasting an impressive 4.8 stars on Kununu Reviews!

Following a successful 2025, they are continuing this upward trajectory into the new year and are looking to onboard multiple experienced Backend C#.NET Developers for their Köln office.

• Design and develop high-quality applications using C# and the latest technologies in the tech stack, including ASP.NET Core (.NET 8/9), Kubernetes Clusters, REST, and MongoDB.

• Manage source code repositories and contribute to version control processes using Git/GitLab.

• Develop and maintain scalable and efficient microservices architectures.

• Drive end-to-end (E2E) testing to ensure application quality and reliability.

• Contribute to the continuous improvement of the development process in an agile Scrum environment.

• Successfully completed degree in IT or comparable training.

• Ideally, you have at least three years professional experience.

• You are experienced in application development with C# and fit our tech stack: ASP.NET Core (.net 8/9), C#, Kubernetes Cluster, REST, Mongo DB, Git / GitLab, Workflow and decision automation platform for microservices orchestration.

• You have gained experience in a dynamic and agile working environment.

• German Language requirement - B1 minimum.