Hiring: Senior Software Engineer, Spacecraft Simulation Company: True Anomaly Location: Long Beach, CA Job Posted Time: 2026-09-16 14:29:04 Employment Type: Hybrid Target Skills & Keywords : API Design, Bazel, C++, CI/CD, CMake, Docker, Embedded Systems, Git, Linear, Python About the job Experience: •Physics-based M&S experience in aerospace or defense •Numerical methods: ODE/DAE solvers (Runge-Kutta, implicit, multi-step), numerical linear algebra, sparse matrix techniques, automatic differentiation •Deep familiarity with coordinate frames (ECI, ECEF, LVLH, body frames), quaternion mathematics, and orbital mechanics •Proficiency with Git, CI/CD, CMake or Bazel, and software testing frameworks •Operational familiarity with parallel computing, Docker, and cloud platforms Required Skills: •Simulation Development •Develop coupled physics algorithms capturing subsystem interactions (thermal-structural, power-thermal, propulsion-dynamics) •Design time-stepping algorithms, solver architectures, and integration schemes for real-time and faster-than-real-time simulation •Write production-quality C++ with emphasis on performance, maintainability, and testability •API Design & Integration •Design and maintain robust APIs in C++ and Python serving internal customers across the organization •Partner cross-functionally with mission planning, GNC, and systems engineering teams to ensure APIs are usable, performant, and backward-compatible •Create comprehensive documentation, examples, and user guides Qualifications: •C++: Proficiency in modern C++ (C++17 or newer), including STL, templates, and performance optimization •Python: Proficiency in API design, scripting, and data analysis •Independence: Demonstrated ability to take ambiguous requirements and drive a complex technical effort to delivered capability with minimal direction •Domain knowledge: Solid understanding of at least one of: ADCS, GNC, thermal control, electric power systems, chemical/electric propulsion, orbital mechanics, or HIL/SIL systems •V&V: Demonstrated experience defining and executing verification and validation plans for physics-based models, including uncertainty quantification and validation against test or flight data •Systems thinking: Ability to make sound design decisions within larger distributed systems •Communication: Strong written and verbal skills; able to articulate complex technical concepts clearly •Clearance: U.S. Citizen eligible for DoD Secret or TS/SCI clearance •Work Location—Successful candidates will be located near Denver or Long Beach. While we observe a hybrid work environment, some work must be done on site. Compensation: •$140,000 - $215,000 / year •Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!