Software Engineer I, Spacecraft Simulation

About the Role

True Anomaly seeks an entry-level Spacecraft Simulation Software Engineer to build and extend spacecraft, constellation modeling, and simulation software with a focus on multi-physics, high-fidelity simulation. This is a 3-month temporary employment engagement with potential for conversion to regular employment.

Key Responsibilities

• Write well-structured, efficient code using modern C++ (C++ 17 / C++ 20), with attention to performance and maintainability.
• Contribute to multi-physics simulation libraries for spacecraft systems modeling, including:
• 6DOF rigid body dynamics with environmental perturbations (gravity gradient, solar radiation pressure, atmospheric drag, magnetic torques).
• Thermal modeling including conduction, radiation, and solar heating.
• Attitude dynamics and control system simulation.
• Propulsion system modeling (thrusters, tanks, mass properties).
• Power generation and distribution (solar arrays, batteries, loads).
• Sensor and actuator models (reaction wheels, star trackers, gyros, magnetometers, thrusters).
• Implement coupled physics algorithms that capture interactions between subsystems (thermal-structural, power-thermal, propulsion-dynamics, etc.).
• Develop and test time-stepping algorithms, solvers, and integration schemes for real-time and faster-than-real-time simulation.
• Maintain libraries that provide APIs in multiple languages (Python, C++) to other applications.
• Collaborate with other internal teams who leverage simulation APIs.
• Participate in code reviews, architectural discussions, and sprint planning sessions.

Requirements & Tech Stack

• C++ (C++ 17 / C++ 20)
• Python
• Object-oriented software development practices
• Software testing practices
• Data structures and algorithms
• Software design patterns
• Version control systems (Git)

Qualifications

• Bachelor's degree in aerospace engineering, mechanical engineering, computer science, physics, a similar discipline, or equivalent practical experience.
• Exposure to C++ (or a similar compiled language) through coursework, internships, personal projects, or research.
• Familiarity with Python is a plus.
• Foundational understanding of object-oriented software development practices, software testing practices, data structures and algorithms, and software design patterns.
• Eagerness to learn quickly, ask questions, and take on new challenges.
• Excellent problem-solving skills and attention to detail.
• U.S. Citizen and eligible for DoD Secret or TS/SCI clearance.

Preferred Skills And Experience

• Internship, co-op, research, or project experience with physics-based modeling and simulation (e.g., spacecraft dynamics, thermal systems, or control algorithms).
• Coursework or project exposure to numerical methods.
• Familiarity with spacecraft subsystems:
• Attitude determination and control systems (ADCS)
• Guidance, navigation, and control (GNC)
• Thermal control systems
• Electric power systems (EPS)
• Propulsion systems
• Understanding of coordinate frames and transformations (ECI, ECEF, body frame, etc.).
• Exposure to quaternion mathematics and rotation representations.
• Introductory knowledge of orbital mechanics and perturbation forces.
• Awareness of model validation, verification, and uncertainty quantification concepts.
• Exposure to CI/CD pipelines a plus.

Compensation

• Base Salary: Denver: $75,000; Long Beach: $80,000.

Additional Requirements

• Work Location: Near Denver or Colorado Springs. Some work must be done on site.
• Must be a U.S. citizen for export regulations.