Minimum 3+ years of experience in C# / .NET software developmentStrong knowledge of C# and .NET (Framework and Core)Experience with version control (Git), Pull Requests, and unit testingAbility to work independently and understand system-level dependenciesClear communication skills and proactive mindset, problem-solving skills and adaptabilityAbility to work in an interdisciplinary environmentNice to have:Experience with gRPC or Mediator frameworksExperience working with hardware-integrated or machine-related systemsExperience in complex, multi-project environmentsBackground in scientific or research-driven environments For our German project, we are looking for a Senior Software Developer (C# / .NET, Backend & Systems) to be the newest Expert of our team.Opportunity to work on a complex, next-generation system in a specialized biotechnological environmentWeekly 2 days on-site presence in Berlin required, with remaining time remote (All travel expenses are fully covered.) ,[Develop and rebuild software solutions using C# and .NET (Framework and Core), Contribute to a next-generation system development project with strong dependencies on other systems, Work on backend components and system-level functionalities, Collaborate closely with developers, architects, and domain specialists, Support integration with machine-related / hardware-interacting systems, Write and maintain clear technical documentation, Participate actively in problem-solving and solution design, Take ownership of tasks and ensure reliable delivery in a complex environment] Requirements: .NET, C#, Git, Unit testing, gRPC, Mediator frameworks