Senior Principal Embedded SW Architect - Missiles & UAS

Integrated Solutions for Systems, Inc. seeks a Senior Principal Embedded Software Engineer to lead flight software for missiles and UAS. You will define architecture, ensure real-time performance, and integrate closely with hardware in constrained environments. The role requires deep C/C++ expertise, hands-on embedded development across MCUs, DSPs and FPGAs, RTOS experience (VxWorks/FreeRTOS/Green Hills), and DoD aerospace program familiarity. U.S. citizenship and TS preferred.