Browse Jobs
Browse fresh roles from company career pages, then filter by keyword, location, salary, skills, remote scope, and more. Each listing links back to the employer-controlled apply path when available.
29 jobs match your filters
2d
Senior Thermal Engineer
Mainstream Engineering Corporation
Position Summary We are looking for motivated thermal engineers to develop cutting-edge products for our military, governmental, and commercial customers. Systems we design are specifically tuned for the customers' needs and ranges from single-phase pumped loops, vapor compressio
Rockledge, FL, 32955, US
onsiteFull-timeToday
1w
Senior Thermal Engineer
Vast
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and ma
Long Beach, California, United States
remoteEasy Apply
1w
E
Senior Thermal Engineer
Eight Sleep
Join the Sleep Fitness Movement At Eight Sleep, we’re on a mission to fuel human potential through optimal sleep. As the world’s first sleep fitness company, we’re redefining what it means to be well-rested and building the most advanced hardware, software, and AI technology to
San Francisco
remoteFull-timeEasy Apply
1w
Senior Thermal Engineer
Arista Networks
Who You’ll Work With Arista seeks to add a Senior Thermal Engineer to address thermal engineering design challenges of high-end switching products in Santa Clara, California. This position reports to the Mechanical Engineering Manager. The total estimated annual compensation ran
Santa Clara, CA, United States
hybridFull-timeMid-Senior LevelEasy Apply
1w
V
Senior Thermal Engineer
Varda Space Industries
About Varda Low Earth orbit is open for business . Varda is accelerating the development of commercial space infrastructure, from in-orbit pharmaceutical processing to reliable and economical reentry capsules. From life-saving pharmaceuticals to more powerful fiber optics, there
El Segundo, California, United States
remoteEasy Apply
2w
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Senior Thermal Engineer
Firmus Technologies
Firmus Technologies Firmus Technologies is a global leader pioneering the solution to AI’s energy challenge, founded in Australia in 2019 by a visionary team of entrepreneurs. Our mission is to create the most energy-efficient AI infrastructure, combining cutting edge technology
Singapore
hybridEasy Apply
2w
Senior Thermal Engineer
Anduril Industries
Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduri
Huntsville, Alabama, United States
remoteEasy Apply
2w
Senior Thermal Engineer
Leonardo
Job Description: Salary Range: £44,171 - £58,000 Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the ex
GB - Luton - Cap. Green 300
onsiteFull-time
2w
V
Senior Thermal Engineer
Varda Space Industries
About Varda Low Earth orbit is open for business . Varda is accelerating the development of commercial space infrastructure, from in-orbit pharmaceutical processing to reliable and economical reentry capsules. From life-saving pharmaceuticals to more powerful fiber optics, there
El Segundo, California, United States
remoteEasy Apply
3w
Senior Thermal Engineer
AST SpaceMobile
AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and sp
US-Remote
remoteEasy Apply
3w
Senior Thermal Engineer
Arista Networks
Who You’ll Work With Arista seeks to add a Senior Thermal Engineer to address thermal engineering design challenges of high-end switching products in Santa Clara, California. This position reports to the Mechanical Engineering Manager. What You’ll Do In this role, you will work
Santa Clara, CA, United States
hybridFull-timeMid-Senior LevelEasy Apply
1mo
R
Senior Thermal Engineer
RTX
Date Posted: 2026-05-04 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued secu
US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01
onsiteFull-time
1mo
Senior Thermal Engineer
Relativity Space
At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R wil
Long Beach, California
onsiteEasy Apply
1mo
Senior Thermal Engineer
Vertiv
The Mechanical Engineer (ME) - Senior Thermal Engineer will be responsible for the design of all thermal and ventilation systems in customized AC and DC Power Modules, IT Modules and Data Centers for three core market segments; IT, Telecom and Industrial. This position will suppo
Pelzer, SC, United States
onsite
1mo
Senior Thermal Engineer
Marmon Holdings, Inc.
Coilmaster Corporation As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing
Moscow, TN
onsiteFull-time
1mo
Senior Thermal Engineer
Procor Limited
Coilmaster Corporation As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing
Moscow, TN
onsiteFull-time
2mo
Senior Thermal Engineer
Radiant
About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
4mo
Senior Thermal Engineer
Turion Space
At Turion Space, we’re building spacecraft to secure Earth and expand humanity’s reach beyond it. We are seeking a Senior Thermal Engineer to lead the design, analyze, test, and implementation of satellite systems. You will work closely with the Turion Space team across softwar
Irvine, CA$150K - $200K
hybridFull-timeEasy Apply
4mo
Senior Thermal Engineer
Matter Intelligence
About Matter Intelligence Matter Intelligence builds advanced airborne and spaceborne sensing systems that combine precision optics, novel thermal architectures, spacecraft engineering, and AI-driven data exploitation. Our systems operate in demanding orbital and airborne enviro
El Segundo
onsiteFull-timeEasy Apply
1w
Senior Thermal Engineer – Payload Systems
Blue Origin
Application close date: Applications will be accepted on an ongoing basis until the requisition is closed. At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We’re working to develop reusable, safe, and low-cost space vehicles an
Greater Seattle Area
onsiteFull-time
2w
Senior Thermal Engineer- Air Vehicles
Anduril Industries
Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduri
Costa Mesa, California, United States
onsiteEasy Apply
3w
I
Senior Thermal Engineer (m/f/d)
isaraerospace
Mission Brief You will be responsible for defining the thermal environment and architecture of the vehicle, ranging from detailed thermal modeling and system level coupled loads analyses and to active and passive thermal control design. You will be in charge of the development, e
Ottobrunn, Bavaria, Germany
onsiteEasy Apply
2mo
Senior Thermal Engineer I
CesiumAstro
Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligi
Westminster, CO$113K - $136K
onsiteFull-timeEasy Apply
5mo
Senior Thermal Engineer, Liquid Cooling Systems
Etched
About Etched Etched is building the world’s first AI inference system purpose-built for transformers - delivering over 10x higher performance and dramatically lower cost and latency than a B200. With Etched ASICs, you can build products that would be impossible with GPUs, like r
San Jose$200K - $250K
remoteFull-timeEasy Apply
2w
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Senior Thermal Engineer (Teradyne, North Reading, MA)
Teradyne Inc
We are the global test and automation specialists, powering next-generation technologies through sophisticated solutions. Behind every electronic device you use, Teradyne's test technology ensures your device works right the first time, every time! Our portfolio of automation sol
North Reading, MA, US
onsite