Flight Software Test & Verification Engineer

Responsibilities

• Develop, integrate, and test real-time flight software for spacecraft PNT subsystems in C and C++
• Build and maintain software-in-the-loop (SWIL) and hardware-in-the-loop (HWIL) test environments for navigation and GN&C software
• Develop automated test infrastructure, regression suites, and analysis tooling in Python
• Execute software verification against subsystem requirements and document results with traceability to those requirements
• Integrate and test navigation sensor and timing interfaces, including GNSS receivers, IMUs, star trackers, optical navigation cameras, and frequency references
• Support bench and testbed integration of flight software with flight-like avionics
• Troubleshoot software, interface, and timing anomalies during integrated test and drive them to closure
• Support Test Readiness Reviews and produce test plans, procedures, and post-test reports
• Perform post-test data reduction and navigation performance analysis
• Work within Agile development processes using Git version control and JIRA issue tracking
• Collaborate across GN&C, avionics, systems engineering, and customer teams
• Required Qualifications
• U.S. Citizenship and ability to obtain and maintain a security clearance
• B.S. in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, or related field
• Level III: 5+ years of professional flight, embedded, or real-time software development experience. Level IV: 10+ years, or M.S. with 8+ years
• Demonstrated depth in C and C++ on real-time, embedded, or resource-constrained targets
• Proficiency in Python for test automation, scripting, and data analysis
• Experience integrating and testing software against hardware interfaces (serial, Ethernet, SpaceWire, CAN, MIL-STD-1553, or equivalent)
• Experience with software test and verification practice, including test procedure development and defect tracking to closure
• Experience with Git version control and software configuration management
• Working knowledge of spacecraft dynamics, orbital mechanics, coordinate frames, and time systems
• Effective written and verbal communication, including clear documentation of test results
• Ability to work on-site in Houston, TX
• Preferred Qualifications
• GPS/GNSS experience: receiver integration, receiver software, signal processing, or GNSS simulator operation
• Formal verification experience in an aerospace, safety-critical, or flight-certified software environment
• Development of SWIL and HWIL test environments, including real-time interface emulation
• Real-time operating system experience (VxWorks, RTEMS, embedded Linux, or equivalent)
• Implementation of Kalman filters or other state estimators in flight software
• M.S. in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, or related field
• Experience with the NASA Trick simulation framework, CSPICE, GMAT, GEONS, or equivalent
• Optical navigation, image processing, or feature detection software
• Monte Carlo analysis and navigation performance characterization
• Linux and Bash development environment fluency
• Requirements management and verification traceability tools
• Spacecraft integration and test (I&T) or flight operations experience
• Lunar, cislunar, or deep-space mission experience