Senior GNC Engineer Spacecraft Simulation & Flight Software

EVONA; Littleton (CO); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Company stock options

Healthcare

401k retirement plan

PTO

Job summary

Astro Digital, based in Littleton, Colorado, is seeking a Senior GNC Engineer to own spacecraft GNC analysis and drive high-fidelity simulations and system-level evaluations, shaping flight software in C++. You will work across mission types, from attitude and orbit control to sensor performance, collaborating with systems engineering and flight software teams to ensure mission success.

This remote-friendly role is open to US-based candidates and offers a comprehensive benefits package and

Qualifications

• U.S. person status required (citizen or lawful permanent resident) to comply with ITAR/EAR export-control regulations.
• Bachelor's degree in Aerospace Engineering, Electrical Engineering, or related field.
• 5+ years of hands-on experience in spacecraft GNC analysis and simulation.
• Strong understanding of spacecraft dynamics, control systems, and estimation techniques (e.g., Kalman filtering).
• Proficiency in C++ and Python.
• Experience developing Monte Carlo simulations and numerical analysis tools.
• Excellent analytical, communication, and technical documentation skills.
• Strong attention to detail and accuracy.
• Ability to work independently and as part of a team.

Responsibilities

• Build high-fidelity models and simulations of spacecraft GNC systems and prove them out across every mission phase.
• Conduct Monte Carlo analyses, covariance studies, and performance assessments to validate GNC algorithms before they fly.
• Create and evolve the simulation and analysis tools we use to design missions and flight software components that implement them.
• Analyze sensor and actuator performance, including propulsion subsystems, star trackers, IMUs, reaction wheels, and GNSS.
• Write and refine C++ flight software GNC components and flight software configuration.
• Support verification and validation of flight software through unit testing and hardware-in-the-loop (HIL) simulations.
• Collaborate with systems engineering, mission design, and flight software teams to ensure GNC performance meets mission requirements.
• Document analysis results, software interfaces, and validation procedures.

Skills

GNC analysis

C++

Python

Monte Carlo simulations

Kalman filtering

Spacecraft dynamics

Systems engineering collaboration

Education

Bachelor's in Aerospace Engineering or Electrical Engineering

Master's in Aerospace/Electrical Engineering

Tools

GNC flight software stacks

Job description

Astro Digital, based in Littleton, Colorado, is seeking a Senior GNC Engineer to own spacecraft GNC analysis and drive high-fidelity simulations and system-level evaluations, shaping flight software in C++. You will work across mission types, from attitude and orbit control to sensor performance, collaborating with systems engineering and flight software teams to ensure mission success.

This remote-friendly role is open to US-based candidates and offers a comprehensive benefits package and