This role is based in St Louis with an onsite requirement and cannot be remote. The Instrument Tech Transfer team develops new equipment, procedures, and test software for IVD medical device products that deliver rapid, high-impact, actionable results in immunoassays, microbiology, and molecular biology. The Senior Software Engineer will play a critical role in developing and supporting software that directly impacts patient health and consumer product safety. This role requires a blend of embedded system experience, desktop application development, and software architecture design, all within a regulated environment. Key technologies used in this role include, but are not limited to: C#, SQL, Python, WPF, .NET MAUI, USB, CAN, and other various communication protocols. This role is ideal for a software engineer who has experience at the intersection of embedded systems and desktop application development, understands the nuances of regulated software design, and is eager to contribute to an evolving software development environment.