Senior .NET / WPF Developer

Summary: Location: Neenah, WI Duration: 4–5 months Work Mode: Onsite Typical hours: 8am–4:30pm, with slight flexibility if needed Responsibilities Design and develop a WPF-based desktop application using a modular and scalable architecture Build and enhance workflows supporting laboratory data capture, calibration, measurement, review, and reporting Implement device integration frameworks for multiple laboratory instruments and peripheral devices Develop device management and configuration modules, including health checks, status monitoring, thresholds, and communication settings Handle serial communication and device connectivity using COM protocols, device APIs, and SDKs Implement multithreading and asynchronous programming patterns for real-time instrument interaction and responsive UI behavior Develop data access, offline data handling, synchronization, and upload capabilities Enable data export, reporting, and printing functionalities Collaborate with engineering, product, and QA teams on architecture, testing strategy, and deployment planning Perform end-to-end validation, integration testing, and issue resolution across device and application workflows Requirements Minimum 5 years of experience in software development Strong proficiency in WPF and desktop UI development Solid experience with C# and .NET Core / .NET Framework Hands-on experience with serial communication and COM port-based integrations Strong understanding of multithreading and asynchronous programming using Task and async/await Experience integrating hardware devices through APIs, SDKs, or communication protocols Knowledge of database access technologies such as ADO.NET or ORMs Experience with modular application architecture and desktop application design Strong problem-solving and debugging skills in device-connected environments Preferred Skills Experience working with laboratory systems, scientific instruments, or embedded device integrations Familiarity with LIMS workflows, sample/result handling, or regulated lab environments Knowledge of NI libraries or equivalent integration frameworks Experience with installer creation and deployment packaging Exposure to offline-first applications and sync mechanisms J-18808-Ljbffr