Sr. Desktop .NET Engineer

This fully remote, full-time contract opportunity is suited to a senior engineer with strong desktop application development expertise. You will contribute to a large-scale greenfield IoT project for a German enterprise client. The role involves building modern desktop applications that connect with hardware, sensors, and robotics systems. You will work across software architecture, UI development, real-time data processing, and performance optimization. As part of a distributed international team, you’ll help develop integrated systems from the ground up. The position offers a long-term engagement with opportunities to influence technical direction and architectural decisions. This is a Europe-based remote role with a focus on challenging engineering problems at the intersection of software and hardware. Accountabilities:

• Design, develop, and maintain desktop applications using C# and .NET.
• Build modern user interfaces using WPF, WinUI, or MAUI, following MVVM architecture principles.
• Develop custom UI controls and 2D/3D data visualization components.
• Integrate desktop software with hardware devices, sensors, and robotics systems.
• Implement high-performance, multithreaded, and asynchronous solutions.
• Work with communication protocols and APIs, including TCP/UDP, WebSocket, gRPC, and REST.
• Collaborate with teams developing native C++ modules and SDK integrations.
• Contribute to system architecture, optimization, scalability, and technical delivery.

• Strong professional experience with C# and .NET/.NET Core.
• Solid experience developing desktop applications using WPF, WinUI, or MAUI.
• Good understanding of the MVVM architecture pattern.
• Experience with multithreading, async/await, and performance optimization.
• Familiarity with network protocols and API integration.
• B2-level German proficiency, required for communication with the client.
• Experience with hardware integrations, sensor data, or similar systems is a plus.
• Exposure to C++ or native modules such as DLLs is advantageous.
• Ability to collaborate effectively within a distributed, international engineering team.

• Monthly contract rate of $6,000-$6,500 USD, depending on experience.
• Full-time B2B contract.
• Initial contract duration of 2 years, with a likely extension to 3 years.
• Fully remote work within Europe.
• Long-term project engagement and expected stability.
• Opportunity to build a greenfield IoT platform from concept through delivery.
• Exposure to advanced hardware, robotics, real-time data processing, and performance-critical systems.
• Opportunity to influence system architecture and technical direction.
• International collaboration with a German enterprise client.