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Senior Software Engineer, Spacecraft Simulation

True Anomaly
Denver, USA
Full-time
Senior · 5+ years experience
Hybrid
USD 140000-215000 yearly / year
Discovered 3 weeks ago
C++PythonGitCI/CDCMakeBazel

Full Job Posting

Simulation Development

Design and implement multi-physics simulation software across spacecraft subsystems: 6DOF rigid body dynamics (gravity gradient, solar radiation pressure, atmospheric drag, magnetic torques, third-body effects), thermal modeling, attitude dynamics and control, propulsion (chemical/electric), power generation and storage, and high-fidelity sensor/actuator models (reaction wheels, CMGs, star trackers, gyros, magnetometers)

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

Collaborate with mission planning, GNC, and systems engineering teams to ensure APIs are usable, performant, and backward-compatible

Create comprehensive documentation, examples, and user guides

Leadership & Collaboration

Drive architectural decisions for simulation subsystems, including technology selection, interface design, and long-term maintainability tradeoffs; conduct thorough code reviews

Mentor junior engineers through pair programming and technical guidance

Contribute to sprint planning, estimation, and technical risk assessment

Participate in hiring through technical interviews and candidate assessment

QUALIFICATIONS

  • Education: Bachelor's in aerospace engineering, mechanical engineering, computer science, physics, applied mathematics, or equivalent experience
  • Experience: 5–8 years of professional software development with significant focus on simulation, scientific computing, or aerospace applications
  • 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

PREFERRED SKILLS AND 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
  • Familiarity with parallel computing, Docker, and cloud platforms
  • Experience with hardware-in-the-loop (HIL) or software-in-the-loop (SIL) testing environments, including simulation interfaces to flight software or embedded hardware

COMPENSATION

  • Base Salary: $140,000 - $215,000
  • Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave
  • Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, location, and experience.

ADDITIONAL REQUIREMENTS

  • 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.
  • Work environment —the work environment; temperature, noise level, inside or outside, or other factors that will affect the person's working conditions while performing the job.
  • Physical demands —the physical demands of the job, including bending, sitting, lifting and driving.
  • This position will be open until it is successfully filled. To submit your application, please follow the directions below. #LI-Onsite
  • To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
  • True Anomaly is committed to equal employment opportunity on any basis protected by applicable state and federal laws. If you have a disability or additional need that requires accommodation, please do not hesitate to let us know.

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