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Software Engineer, GNC Simulations; Starlink

Job in Redmond, King County, Washington, 98052, USA
Listing for: SPACE EXPLORATION TECHNOLOGIES CORP
Full Time position
Listed on 2026-01-31
Job specializations:
  • Software Development
    Software Engineer
Job Description & How to Apply Below
Position: Software Engineer, GNC Simulations (Starlink)

Software Engineer, GNC Simulations (Starlink)

Redmond, WA

Space

X was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Space

X is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

As a Simulation Software Engineer on the Starlink GNC team, you will help develop and maintain our in-house vehicle dynamics simulator, as well as related infrastructure for dispersed Monte Carlo simulations, hardware-in-the-loop (HITL) simulations, and GNC-specific data visualization. You will program the core simulation infrastructure and collaborate on the building of models to accurately represent multi-body physics, environmental perturbations, and vehicle power/propulsion/control hardware.

This is a high impact role where you will work across the engineering groups to build high fidelity simulations used to develop cutting-edge software and hardware. Space

X is looking for smart, motivated software engineers who enjoy taking on complex challenges, work well in dynamic environments and care about software best practices.

RESPONSIBILITIES
  • Maintain in-house simulator as it pertains to Starlink and make continual improvements to help that system scale in performance and capability along with our constellation
  • Maintain and improve the Space

    X GNC Monte Carlo simulation infrastructure as it pertains to Starlink
  • Work with simulation software users to develop new features and models, and to improve user experience
  • Improve reliability and performance of simulation software via continuous integration, profiling, etc
QUALIFICATIONS
  • Bachelor's degree in computer science, engineering, math, or STEM discipline and 1+ years of experience in software development; OR 3+ years of professional experience in software development in lieu of a degree
  • 2+ years development experience in C/C++
ADDITIONAL SKILLS
  • Strong proficiency in C++, Python. Front-end skills (e.g., JavaScript)
  • Strong software design and development skills
  • Thorough knowledge of physics and math
  • Strong debugging, performance optimization, and unit testing
  • Creative approach to problem solving
  • Ability to work effectively in a dynamic environment with changing needs and requirements
  • Ability to work independently and in a team, take initiative, and communicate effectively
ADDITIONAL REQUIREMENTS
  • Willing to work extended hours and weekends when needed
COMPENSATION AND BENEFITS
  • Software Engineer/Level I: $ - $ per year
  • Software Engineer/Level II: $ - $ per year
  • Your actual level and base salary will be determined on a case-by-case basis and may vary based on job-related knowledge, education, and experience.
  • Base salary is part of a total rewards package including potential long-term incentives, stock options, discretionary bonuses, and benefits.
  • Benefits include medical, vision, dental, 401(k), disability and life insurance, paid parental leave, vacation, holidays, sick time, and shuttle service from select Seattle locations to the Space

    X Redmond office.

To conform to U.S. Government export regulations, applicant must be a U.S. citizen or national, a U.S. lawful permanent resident (green card holder), a refugee under 8 U.S.C. § 1157, or an asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here.

Space

X is an Equal Opportunity Employer; employment with Space

X is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Applicants requiring reasonable accommodation to the application/interview process should reach out to

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