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Astranis

Guidance, Navigation & Control (GNC) Simulation Software Engineer

Astranis
onsite mid full-time Base Salary $120,000-$175,000 USD San Francisco
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First indexed 24 Apr 2026

Description

As a Simulation Software Engineer on the GNC team, you will design, develop, and test our high-fidelity spacecraft simulation that is used to validate the software that controls our satellites while in orbit.

Your responsibilities will include:

  • Design, develop, and maintain software for our high-fidelity software simulation platform
  • Implement and improve software- and hardware-in-the-loop simulations to validate satellite software and flight algorithms
  • Accelerate the software development process through infrastructure improvements
  • Develop and enhance Monte Carlo simulation tooling for assessing system performance under various conditions
  • Incorporate physics-based models into simulation
  • Develop analysis and visualization tooling to provide insight into our system
  • Support GNC operations for our fleet of satellites, including on-console and on-call rotations

Requirements include:

  • BS or MS in Computer Science, Aerospace Engineering, or equivalent background experience
  • 2-5+ years in software or building simulations of complex physical systems
  • 2-5+ years experience with Python or other high-level object-oriented programming language(s)
  • Ability to effectively collaborate with interdisciplinary teams on large software projects
  • Strong problem-solving skills and attention to detail
  • Highly motivated, self-starting, and able to perform duties autonomously without much supervision

Bonus requirements include:

  • Understanding of classical or modern control theory, and basic orbital mechanics
  • Knowledge of memory management, threading, and interprocess communication techniques
  • Experience building and maintaining software infrastructure used across teams
  • Experience in statistical analysis techniques and Monte Carlo simulation
  • Experience with C/C++
  • Experience with AI tooling and agentic workflows
  • Experience with databases
  • Experience with spacecraft design

What we offer:

All our positions offer a compensation package that includes equity and robust benefits. Base pay is just one component of Astranis's total rewards package. Your compensation also includes a significant equity package via incentive stock options, high-quality company-subsidized healthcare, disability and life insurance, 401(k) retirement planning, flexible PTO, and free on-site catered meals.

Astranis pay ranges are informed and defined through professional-grade salary surveys and compensation data sources. The actual base salary offered to a successful candidate will additionally be influenced by a variety of factors including experience, credentials & certifications, educational attainment, skill level requirements, and the level and scope of the position.

Base Salary $120,000-$175,000 USD

This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/astranis/jobs/4017276006