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Senior Thermal Engineer - Electronics & Reliability



San Francisco, CA, USA
Posted on Tuesday, March 19, 2024

Astranis is on a mission to bridge the digital divide by connecting the four billion people worldwide who currently lack internet access. We're doing this by building the next generation of smaller, more cost-effective spacecraft to bring the world online.

As a team, we’ve launched two satellites into orbit, signed ten commercial deals worth over $1 billion in revenue, raised over $500 million from top global investors, and recruited a team of over 300 world-class engineers. We all work out of our (legendary) San Francisco office, which was once used to build ships during the World Wars.

Our satellites, which operate from geostationary orbit (GEO), weigh only 400 kg and utilize a proprietary software-defined radio payload. Each satellite can connect over two million people, and we’re very excited for the impact we’ll soon have in the Philippines, Peru, Mexico, and more!

Backed by substantial funding and a passionate, collaborative team, we offer a rewarding work environment where you'll learn and make a significant impact, no matter where you are in your career.

Apply and join us on our journey towards global connectivity!

Senior Thermal Engineer - Electronics & Reliability

Astranis is seeking a Senior Thermal Engineer with a strong background in electronics thermal management, reliability analysis and testing, with an interest in expanding their career into spacecraft thermal engineering (including but not exclusive to electronics packaging). You must have a strong problem-solving background, as well as experience designing and executing tests to prove the reliability of electronic components, boards and units. Experience with spacecraft thermal mitigation is not required, however an interest in learning and growing in this area is required.


  • Perform thermal analysis to varying degrees of fidelity (simplified to detailed) on a variety of electronic components and assemblies to assess reliability
  • Develop standards and requirements for ensuring that the components chosen for our electronics will survive for the desired lifetime in our operating environments
  • Develop processes and procedures for integration and assembly which ensure thermal design intent is met.
  • Collaborate with the integration and test team in the installation of thermal hardware as needed.
  • Take charge of design trades that successfully balance performance margins, resource use, risk, cost, and schedule.
  • Design, evaluate, procure and test spacecraft thermal solutions such as heaters, heat pipes, thermal interface materials, and surface coatings.
  • Plan and run thermal vacuum testing and verification at the component and spacecraft level.
  • Mentor and support junior engineers.
  • Assist in recruiting, interviewing, and hiring additional teammates to our rapidly-growing team.


  • Bachelor of Science degree in engineering or physics
  • 6+ years of experience in a thermal/mechanical/reliability role
  • Extensive electronics derating and analysis experience
  • Knowledge of low cycle failure mechanisms (including solder fatigue) of electronic components and best practices for improving reliability
  • Experience planning and executing qual & acceptance testing as well as HALT/HASS
  • Familiar with JEDEC standards, common component materials and packages
  • A passion and enthusiasm for hardware development, including working in a fast-paced environment and hands-on design and development
  • Don't meet them all? Not a problem. Please apply even if you do not meet all these criteria.


  • Experience with ANSYS Mechanical, ANSYS Sherlock or ANSYS IcePak
  • Experience with Thermal Desktop
  • Experience designing for a vacuum environment or environments with large temperature swings
What we offer:
All our positions offer a compensation package that includes equity and robust benefits.
Base pay is a single component of Astranis's total rewards package, which may also include equity in the form of incentive stock options, high quality company-subsidized healthcare, disability and life insurance benefits, flexible PTO, 401(K) retirement, and free on-site catered meals.
Astranis pay ranges are informed and defined through professional-grade salary surveys and compensation data sources. The actual base salary offered to a successful candidate will additionally be influenced by a variety of factors including experience, credentials & certifications, educational attainment, skill level requirements, and the level and scope of the position.
Base Salary
$145,000$180,000 USD
U.S. Citizenship, Lawful Permanent Residency, or Refugee/Asylee Status Required
(To comply with U.S. Government space technology export regulations, applicant must be a U.S. citizen, lawful permanent resident of the United States, or other protected individual as defined by 8 U.S.C. 1324b(a)(3))
Our mission and our products are meant to connect the world and everyone in it, regardless of gender, race, creed, or any other distinction. We believe in a diverse and inclusive workplace, and we encourage all people to join our team and bring their unique perspective to help make us stronger.