Spacex
Spacex3h ago

Software Engineer, Simulations (Starlink)

United StatesRedmondmid
EngineeringSoftware Engineer
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Quick Summary

Requirements Summary

Bachelor's degree in computer science, engineering, math,

Technical Tools
EngineeringSoftware Engineer

SpaceX 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 SpaceX 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. SpaceX 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

~1 min read
  • 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 SpaceX 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

Requirements

~1 min read
  • 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++

Requirements

~1 min read
  • Strong proficiency in C++, python. front-end skills (eg, js) 
  • Strong software design and development skills
  • Thorough knowledge of physics and math
  • Strong skills in 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

Requirements

~1 min read
  • Willing to work extended hours and weekends when needed

What We Offer

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Pay range:

Software Engineer/Level I: $125,000.00 - $145,000.00/per year 

Software Engineer/Level II: $145,000.00 - $175,000.00/per year

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, and experience.

Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Employees in Washington State accrue paid sick time in compliance with state and federal law. Company shuttles are offered to employees for roundtrip travel from select Seattle locations to the SpaceX Redmond office Monday to Friday.

Requirements

~1 min read
  • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) 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 the ITAR here.  

SpaceX is an Equal Opportunity Employer; employment with SpaceX 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 wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to [email protected]

Listing Details

Posted
April 10, 2026
First seen
March 23, 2026
Last seen
April 11, 2026

Posting Health

Days active
18
Repost count
0
Trust Level
69%
Scored at
April 11, 2026

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SpaceX is a leader in aerospace manufacturing and space transport services, founded to make life multiplanetary.

Employees
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Founded
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SpacexSoftware Engineer, Simulations (Starlink)
Software Engineer, Simulations (Starlink) | Spacex | Redmond | April 2026