flight software virtualization engineer

Principal Flight Software Virtualization Engineer Seeking a Principal Flight Software Virtualization Engineer to join our team in Westminster, CO, San Jose, CA, or a U.S. remote location. In this role, you will be the technical leader for our spacecraft flight software virtualization environment, enabling development and testing of Green Hills RTOS-based flight software on emulated x86/RHEL8 platforms. Responsibilities • Design, implement, and maintain virtualized environments for spacecraft flight software development and testing using QEMU on x86 architectures running RHEL8 • Develop and optimize processor emulation configurations for Green Hills RTOS, ensuring high-fidelity representation of target spacecraft hardware • Create software models of spacecraft components and subsystems for integration into all-software spacecraft simulators • Architect virtualization solutions that support Continuous Integration/Continuous Deployment (CI/CD) pipelines for flight software development • Debug and resolve complex virtualization issues including timing, hardware interface emulation, and RTOS behavior • Collaborate with flight software engineers to ensure seamless development workflows between virtualized and target hardware environments • Evaluate emerging virtualization technologies and make recommendations for integration into the development toolchain • Communicate cross-functionally with software, systems, and test engineers to ensure coherent system design • Develop and execute unit, integration, and system-level tests on virtualized flight software applications • Participate in customer-facing design reviews and technical discussions • Document virtualization architectures, configurations, and best practices Minimum Requirements • Must be a U.S. citizen or permanent resident • BS in Computer Engineering, Computer Science, Electrical Engineering, or related technical discipline (MS preferred). Four additional years of experience may be substituted for a degree. A master's degree may be considered as two additional years of professional experience. • 15+ years of professional software development experience • Deep technical expertise in QEMU processor emulation and virtualization technologies • Demonstrated experience with Green Hills RTOS in virtualized/emulated environments • Hands-on experience configuring and troubleshooting QEMU for embedded RTOS emulation on x86 platforms • Strong proficiency with RHEL/Linux systems administration and development environments • Understanding of spacecraft avionics architectures and real-time systems constraints • Experience with software compilers, cross-compilation toolchains, and embedded development tools • Proficiency in C/C++ and scripting languages (Python, Bash) Preferred Qualifications • Experience with MIL-STD-1553 protocol implementation and emulation • Knowledge of spacecraft flight software architectures (e.g., cFS, F Prime) • Familiarity with hardware-in-the-loop (HITL) and software-in-the-loop (SITL) testing methodologies • Experience with containerization technologies (Docker, Podman) for development environments • Background in spacecraft simulation or embedded systems simulation • Understanding of CI/CD tools and practices (Jenkins, GitLab CI, etc.)