Thermal Engineer
- Pay
- $130,000 – $165,000 per year
- Location
- San Francisco, CA · On-site
- Job type
- Full-time
- Level
- Senior
- Experience
- 2+ years
- Education
- Bachelor's degree
- Listed
- 14 days ago
Skills & highlights for this role
- Thermal analysis
- Thermally-constrained design
- Mechanical CAD
- Hands-on hardware testing
- Thermal/mechanical design experience
Also useful
- Thermal Desktop
- ANSYS Mechanical
- ANSYS Icepak
- Finite element thermal analysis
- Electronics packaging
- PCB design
- High vacuum systems
- Spacecraft thermal design
About the role
Astranis builds advanced satellites for high orbits, expanding humanity's reach into the solar system. Today Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe - large enterprises, sovereign governments, and the US military.
With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts. Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization.
Astranis has raised over $1.2 billion from some of the world's best investors, including Andreessen Horowitz, Baillie Gifford, Blackrock, Fidelity, Franklin Templeton, and Snowpoint, and employs a team of 500 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA.
About the role
As an Astranis Thermal Engineer, you will design, evaluate and test thermal solutions ranging from electronic chips to full spacecraft thermal vacuum tests. You must have a strong problem-solving background as well as hands-on testing skills. Experience with spacecraft or printed circuit board thermal mitigation are benefits but not required.
Role
- Mature designs through conceptual, preliminary, and detailed design phases using practical passive and active thermal control techniques
- Support design trades that successfully balance performance margins, resource use, risk, cost, and schedule
- Perform thermal analysis to varying degrees of fidelity (simplified to detailed) on a variety of different types of hardware such as propulsion components, batteries, high powered electronics, RF components, mechanisms, and printed circuit boards (PCBs)
- Design, evaluate, procure and test thermal solutions such as heaters, heat pipes, thermal interface materials, and surface coatings
- Develop processes and procedures for integration and assembly which ensure thermal design intent is met. Collaborate with the integration and test team; provide assistance with the installation of thermal hardware as needed
- Plan and run thermal vacuum testing and verification at the component and spacecraft level
Requirements
- Bachelor of Science degree in engineering or physics
- 2+ years of experience in a thermal/mechanical role
- Experience in thermal analysis and thermally-constrained design; computational thermal design experience (finite methods) is not required but highly preferred
- Proficiency with mechanical CAD
- 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.
Bonus
- Experience with Thermal Desktop
- Experience with ANSYS Mechanical or ANSYS IcePak
- Experience with Electronics Packaging and Printed Circuit Board (PCB) design
- Experience building and operating high vacuum systems
- 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 just one component of Astranis's total rewards package. Your compensation also includes a significant equity package via incentive stock options, high-quality company-subsidized healthcare, disability and life insurance, 401(k) retirement planning, flexible PTO, 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 $130,000 - $165,000 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 products are built for everyone, regardless of gender, race, creed, or background. We believe in a diverse and inclusive workplace, and we invite all people to join our team and bring their unique perspectives to make us stronger.
Astranis SMS Terms of Service
- Recruiting Updates: By opting in, you agree to receive SMS updates, interview coordination, and recruiting communications from Astranis Space Technologies Corp.
- Opt-Out: You can cancel this service at any time by replying STOP. We will send one final text confirming your unsubscription.
- Opt-In Again: To resume receiving messages, reply START or YES.
- Support & Rates: For assistance, reply HELP or contact us at +16504498097. Message and data rates may apply. Message frequency varies; carriers are not liable for delayed or undelivered messages.
- Privacy: For details on how we protect your data, view our Privacy Policy.
From Astranis's careers page, first listed on Rolev.ai on October 27, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
Rolev.ai is a job search and application tool for US job seekers. For this Thermal Engineer role at Astranis, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.
See how you fit
Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.
Tailor without inventing
Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.
Draft the full kit
Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.
1-Click Extension Autofill
The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.
Similar roles
- Thermal Engineer (Starshield)SpaceX · Hawthorne, CA · $100k – $160k/yr
- Thermal Systems Engineer - Level 3 or 4 (Active TS or SCI)Ngc · Redondo Beach, CA · $114k – $171k/yr
- Thermal Engineer, Rack LevelEtched · San Jose, CA
- Senior Thermal EngineerArista Networks · Santa Clara, CA
- Senior Thermal Systems Engineer - Data Center CoolingCarrier · Charlotte, NC
- Thermal Engineer, Thermal Protection Systems (TPS)Anduril · Mountain View, CA
Common questions
What is the salary for the Thermal Engineer role at Astranis?
The Thermal Engineer posting at Astranis states compensation of $130,000 – $165,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Astranis's official career site.
Where is the Thermal Engineer job at Astranis located?
This Thermal Engineer position at Astranis is located in San Francisco, CA (On-site). Always check Astranis's application page for specific state eligibility or relocation policies.
What qualifications are required for Thermal Engineer at Astranis?
For the Thermal Engineer role, Astranis highlights 2+ years of relevant experience; a bachelor's degree; experience with Thermal analysis, Thermally-constrained design, Mechanical CAD, Hands-on hardware testing, Thermal/mechanical design experience. 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 Engineer position at Astranis?
This listing links directly to Astranis's Greenhouse application page. You can apply directly on Astranis'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.