Occupation
Senior Thermal Engineer
Senior Thermal Engineers design and optimize thermal systems for complex products, managing heat transfer, temperature control, and thermal performance from concept through manufacturing and operation. They conduct thermal analyses, design cooling and heating systems, oversee testing and validation, and often lead teams of junior engineers while collaborating across mechanical, electrical, and systems engineering disciplines. The role suits experienced mechanical engineers with strong analytical skills, expertise in thermal simulation software and testing methods, and the ability to balance performance requirements with manufacturing constraints and cost considerations.
How much does a Senior Thermal Engineer make?
Too few Senior Thermal Engineer postings state pay to publish a median yet: 2 of 4 open roles do, and we wait for 25.
Who is hiring for Senior Thermal Engineer roles?
4 open Senior Thermal Engineer roles from 4 employers.
From employers’ own postings, as of.
Senior Thermal Engineer in the job market
Last checked October 28, 2026
- Open roles
- 4
- Employers
- 4
- Median pay
- —
- Disclose pay
- —
on Career App right now
hiring for it
not enough disclosed
of these roles
Open Senior Thermal Engineer roles (4)
Senior Thermal Engineer
Voyager
Pittsburgh, PA
Listed on Voyager’s careers site · Apply there ↗
Senior Thermal Engineer
Eight Sleep
Full-time · San Francisco, CA · $140,000 – $200,000
Eight Sleep seeks a thermal systems expert to design and optimize the heating and cooling performance of their sleep fitness products, from concept through high-volume manufacturing. This role is ideal for an experienced mechanical engineer comfortable with significant ownership, rapid iteration, and intensive work environments.
Listed on Eight Sleep’s careers site · Apply there ↗
Senior Thermal Engineer
Relativity Space
Long Beach, CA · $132,000 – $198,000
This role leads the thermal engineering team responsible for ensuring Terran R launch vehicle components survive extreme temperature conditions across all flight phases and ground operations. You'll architect thermal systems, conduct multi-level analyses, direct engineers, and oversee testing while working closely with hardware and cross-functional teams to solve complex vehicle integration challenges.
Listed on Relativity Space’s careers site · Apply there ↗
Senior Thermal Engineer
Astranis
San Francisco, CA
Listed on Astranis’s careers site · Apply there ↗