SpaceX
Aerospace & DefenseDirect Greenhouse career site

Thermal Mechanical Test Engineer, Silicon Packaging (Starlink)

Location
Bastrop, TX · On-site
Job type
Full-time
Level
Mid-level
Experience
1+ year
Education
Bachelor's degree
Listed
31 days ago

Skills & highlights for this role

  • ITAR eligibility
  • finite element analysis
  • thermal simulation
  • thermocouple mapping
  • correlating simulation with test data

Also useful

  • ANSYS
  • Abaqus
  • COMSOL
  • Flotherm
  • Icepak
  • Python
  • MATLAB

About the role

SpaceX is leveraging our experience building rockets and spacecraft to deploy Starlink, the world's largest satellite constellation and most advanced broadband internet system.

We provide reliable and fast internet to millions of users worldwide, including populations with little or no connectivity, rural communities, aircraft, watercraft, and places where existing services are unreliable, too expensive, or disconnected by natural disasters. We design, build, test, and operate all parts of the system, thousands of satellites and consumer dishes that allow users to connect within minutes of unboxing.

The Starlink team is seeking out the best-in-class professionals to maximize Starlink's potential for communities and businesses around the globe.

As a Thermal Mechanical Test Engineer for Silicon Packaging at SpaceX, you will develop and execute thermal and mechanical modeling and test programs for advanced semiconductor packaging and board-level assemblies. You will support the silicon packaging process engineering organization by characterizing package and board thermal performance, validating mechanical robustness, and correlating simulation results with physical test data to enable high-volume production of reliable Starlink hardware.

Responsibilities

  • Develop and run thermal and mechanical finite element models, and thermal simulations, to predict package and board-level behavior under operational and environmental conditions
  • Develop process models to support new production line bring-up and investigations into packaging processes
  • Design, set up, and execute thermal and mechanical test campaigns
  • Perform board-level thermal characterization and testing to evaluate heat spreading, junction temperatures, and system-level thermal performance
  • Operate and maintain thermal and mechanical test equipment, such as thermal chambers, along with instrumentation, including thermocouples and infrared cameras
  • Analyze test data, correlate models with empirical results, and provide actionable feedback to packaging, silicon design, and manufacturing teams
  • Support new package and board designs through test planning, execution, and data reporting
  • Collaborate cross-functionally with packaging process engineers, hardware design teams, production operations, and quality to integrate test insights into product development and production ramp

Basic Qualifications

  • Bachelor's degree in an engineering, math, or science discipline
  • 1+ years of experience with thermal or mechanical modeling and testing in an industry or academic setting

Preferred Skills and Experience

  • Bachelor's in mechanical engineering, materials science, aerospace engineering, physics, applied mathematics, or other STEM discipline
  • Advanced degree in an engineering, math, or science discipline
  • Experience with board-level thermal testing and characterization using thermocouple mapping, power dissipation testing, or infrared thermography
  • Experience using finite element analysis or thermal simulation tools such as ANSYS, Abaqus, COMSOL, Flotherm, or Icepak
  • Experience with 3D and reduced-order thermal and mechanical modeling
  • Experience correlating simulation models with physical test data
  • Experience in simulation and characterization of IC packaging thermal resistance parameters
  • Proficiency in Python or MATLAB for data analysis and post-processing
  • Background in semiconductor packaging or high-reliability electronics environments
  • Experience working in a fast-paced, high-volume manufacturing or new product introduction setting

Additional Requirements

  • Ability to work extended hours or weekends as needed for mission critical deadlines

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.

About SpaceX

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.

Read the original posting

From SpaceX's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Thermal Mechanical Test Engineer, Silicon Packaging (Starlink) job at SpaceX located?

This Thermal Mechanical Test Engineer, Silicon Packaging (Starlink) position at SpaceX is located in Bastrop, TX (On-site). Always check SpaceX's application page for specific state eligibility or relocation policies.

What qualifications are required for Thermal Mechanical Test Engineer, Silicon Packaging (Starlink) at SpaceX?

For the Thermal Mechanical Test Engineer, Silicon Packaging (Starlink) role, SpaceX highlights 1+ year of relevant experience; a bachelor's degree; experience with finite element analysis, thermal simulation, thermocouple mapping, correlating simulation with test data. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Thermal Mechanical Test Engineer, Silicon Packaging (Starlink) position at SpaceX?

This listing links directly to SpaceX's Greenhouse application page. You can apply directly on SpaceX's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Greenhouse application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.