Skip to content

Mechanical

Thermal Engineer (Starlink)

SpaceX logoSpaceXBastrop, TX, United StatesPosted 6mo ago

About the role

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.

THERMAL ENGINEER (STARLINK)

At SpaceX, we are applying our expertise in building rockets and spacecraft to create the world’s largest and most advanced satellite broadband system. Starlink delivers fast, reliable internet to millions of users through a vertically integrated network of satellites, receiver antennas, lasers, gateways, and sophisticated software. We design, build, test, and operate every part of the system to serve users everywhere on Earth.

As a thermal engineer, you are responsible for the thermal design, test, and validation of all Starlink hardware. This includes but is not limited to phased array antennas, custom silicon design for chips, consumer WiFi, and other RF systems to be developed in the future. You will use your skills in thermal analysis to make engineering decisions that improve the performance of Starlink hardware everywhere from remote research labs in Antarctica to Mach 0.7 in-flight.

RESPONSIBILITIES

  • Thermal system design of next-generation phased arrays, gateways, and consumer wireless products – own every component, part, and interface in the design
  • Thermal design of semiconductor packages, from high level concepts to detail thermal simulations and lab testing
  • Devise, build, and run tests to validate the expected performance of the hardware in extreme conditions
  • Automate workflow and pursue operational simplicity to reduce engineering investment in the design cycle
  • Utilize first-principles approach to evaluate sizing cases and impact of design decisions
  • Perform analysis to make recommendations for performance/robustness improvements
  • Produce quality documentation of your work for design requirements and specifications
  • Continuous collaboration with mechanical, electrical, software, and RF design teams

BASIC QUALIFICATIONS

  • Bachelor's degree in engineering discipline
  • 1+ years of experience with mechanical design, electromechanical design, and/or analysis (internship or project team experience is applicable)

PREFERRED SKILLS AND EXPERIENCE

  • Master's degree in relevant engineering discipline
  • 1+ years of experience using scientific programming languages such as MATLAB, Python
  • Experience with Thermal Desktop and ANSYS Workbench
  • Experience with tools for chip thermal design like Flotherm or Icepak
  • Experience with 3D and reduced order thermal modeling
  • Excellent oral and written communication skills
  • Ability to deliver against an aggressive schedule

ADDITIONAL REQUIREMENTS

  • Must be available to work extended hours and weekends as needed

ITAR REQUIREMENTS

  • 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 EEOCompliance@spacex.com .

From SpaceX's job posting, checked 29 Oct 2026.

The application

Your details and CV, then 13 questions.

Have readyCVLinkedIn (optional)Cover letter (optional)
  1. 1.
    Please specifyShort answer · optional
  2. 2.
    GPA (Undergraduate)Pick one (13 options)
  3. 3.
    GPA (Graduate)Pick one (13 options)
  4. 4.
    GPA (Doctorate)Pick one (13 options)
  5. 5.
    SAT ScorePick one (156 options)
  6. 6.
    ACT ScorePick one (19 options)
  7. 7.
    GRE ScorePick one (156 options)
  8. 8.
    Active Security Clearance(s)Pick any (8 options)
  9. 9.
    SpaceX & SpaceXAI Employment HistoryPick one
  10. 10.
    Can you perform all of the essential functions of this role with or without reasonable accommodations?Yes or no
  11. 11.
    Are you legally authorized to work in the United States?Pick one
  12. 12.
    Citizenship StatusPick one
  13. 13.
    If (f) Other, please explain:Short answer · optional

From SpaceX's apply page, checked 29 Oct 2026.

About SpaceX

Designs, manufactures and launches advanced rockets and spacecraft.

Experienced in Mechanical, Structures & Thermal?

One profile for every space employer. Companies ask us for people with a specific skill, country or credential: add yours once, and when a role fits, we introduce you, only with your yes. Free.

Create my profile

Get new SpaceX roles by email

We check the SpaceX job board every hour and email you its newest roles each week, plus similar roles at other employers. Free, unsubscribe anytime.

Hiring for SpaceX? Feature this role for 30 days ($99 for one role, $299 for every open role): a labelled Featured block above the lists and the first roles in the weekly job email.