Millennium Space Systems, a Boeing Company, is seeking a Senior-level Software Engineer with deep LabVIEW expertise to join our Electrical Ground Support Equipment (EGSE) team. In this role, you’ll design and develop software that powers test systems, Hardware-in-the-Loop (HIL) setups, and custom electrical test equipment used to validate spacecraft hardware. This role is ideal for engineers with a proven track record in National Instruments (NI) software ecosystems, who combine hands-on development skill with the ability to guide teams, set technical direction, and establish engineering best practices. You will work closely with Assembly Test and Launch Operations (ATLO), Manufacturing, and Systems Engineering to ensure our test solutions meet the highest standards of performance, maintainability, and compliance, directly impacting mission success.