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Mechanical

Principal Materials Engineer, Polymers (Starlink)

SpaceX logoSpaceXBastrop, TX, United StatesPosted 1mo ago

This role falls under U.S. export rules, so the posting asks for U.S. person status. That means a U.S. citizen, a green card holder, a refugee or an asylee.

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.

PRINCIPAL MATERIALS ENGINEER, POLYMERS (STARLINK)

Starlink, our revolutionary satellite constellation, will deliver low-latency broadband internet worldwide. We are committed to offering access to high-speed internet to customers, and are looking for a Polymers Engineer to utilize their knowledge, experience, and creativity to solve material selection and processing challenges as we ramp service.

**RESPONSIBILITIES: **

  • Responsible for the development, test and performance evaluation of polymeric materials used across various Starlink products
  • Support polymer selection and implementation by collaborating with design engineers to establish required design inputs for ensuring a cost-effective and reliable mass consumer electronic
  • Collaborate with other engineers, subject matter experts, and technicians to solve complex material and processing challenges on our current and next generation products
  • Lead successful scale-up from prototype to production of relevant injection molded parts
  • Engage in root cause failure investigations as a subject matter expert for failure mechanisms

BASIC QUALIFICATIONS

  • Bachelor's degree in materials science or an engineering discipline
  • 10+ years of experience with characterizing, testing, and evaluating the performance of thermoplastics, elastomers, and/or adhesives

PREFERRED SKILLS AND EXPERIENCE

  • Master's degree or PhD in materials science, materials engineering, or polymer engineering
  • Diverse knowledge of polymeric and elastomeric materials and their processing
  • Knowledge of polymer additives, fillers, and reinforcements, and their impact on polymer processing
  • Strong background in polymer characterization techniques and equipment, including SEM-EDS, FTIR, DSC, TGA, LFA, rheometry, optical microscopy, hardness testers, and mechanical property testing
  • Expert understanding of failure modes in polymeric materials
  • Experience with developing new processes, improving efficiencies and successfully transferring to production
  • Development of new testing techniques and custom test jigs
  • Demonstrated track record of success in a rapidly growing, fast-paced and highly competitive environment

ADDITIONAL REQUIREMENTS

  • Must be available to work extended hours and weekends as needed
  • Willingness and ability to travel up to 25% time
  • Work performed in an environment requiring exposure to fumes, odors, and noise
  • Comfort occasionally working in tight or confined spaces

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 .

Copied from the listing SpaceX published, verified 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

Taken from the application form SpaceX runs, verified 29 Oct 2026.

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