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Heat Exchanger Thermal Engineer Jobs (NOW HIRING)

Senior Thermal Engineer

Rockledge, FL · On-site

$92K - $127K/yr

Heat exchangers and electronics coldplates * Thermal energy storage * Oscillating heat pipes ... Lead thermal engineering projects from concept through prototype, testing, and production * Develop ...

Design and develop thermal systems components such as heat exchangers and cooling systems. Create ... Support design reviews and implement engineering changes. Work closely with cross-functional teams ...

A degree in Mechanical Engineering or a related field, with emphasis in heat transfer (B.S. required, M.S. preferred). * 10+ years of experience in thermal design; 5+ years of experience designing ...

A degree in Mechanical Engineering or a related field, with emphasis in heat transfer (B.S. required, M.S. preferred). * 10+ years of experience in thermal design; 5+ years of experience designing ...

Thermal Engineer

Los Angeles, CA · On-site

$91K - $140K/yr

As a Thermal Engineer at Hermeus, you will be responsible for analyzing, designing, and ... Design and develop efficient thermal management systems, including heat shields, thermal protection ...

Thermal Engineer

Los Angeles, CA · On-site

$91K - $140K/yr

As a Thermal Engineer at Hermeus, you will be responsible for analyzing, designing, and ... Design and develop efficient thermal management systems, including heat shields, thermal protection ...

Thermal Engineer

Santa Monica, CA · On-site

$91K - $140K/yr

As a Thermal Engineer at Hermeus, you will be responsible for analyzing, designing, and ... Design and develop efficient thermal management systems, including heat shields, thermal protection ...

Thermal Engineer

Los Angeles, CA · On-site

$91K - $140K/yr

As a Thermal Engineer at Hermeus, you will be responsible for analyzing, designing, and ... Design and develop efficient thermal management systems, including heat shields, thermal protection ...

Thermal Engineer

Columbus, OH · On-site

$85K - $105K/yr

The thermal engineer would be responsible for working with the engineering and R&D teams to drive ... Job Responsibilities: - Serve as the technical authority for heat transfer, thermodynamics, and ...

Thermal Engineer

Denver, CO · On-site

$125K - $165K/yr

Thermal Engineer - Own the thermal architecture behind next-generation spacecraft from design ... Strong understanding of spacecraft thermal environments and heat-transfer fundamentals * Experience ...

Showing results 41-60

Heat Exchanger Thermal Engineer information

See salary details

$43.5K

$104.5K

$167.5K

How much do heat exchanger thermal engineer jobs pay per year?

As of Sep 10, 2026, the average yearly pay for heat exchanger thermal engineer in the United States is $104,528.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $129,000.00 per year, depending on experience, location, and employer.

What are popular job titles related to Heat Exchanger Thermal Engineer jobs?

For Heat Exchanger Thermal Engineer jobs, the most frequently searched job titles are:

Infographic showing various Heat Exchanger Thermal Engineer job openings in the United States as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $104,528 per year, or $50.3 per hour.

Senior Thermal Engineer

Rockledge, FL • On-site

Mainstream Engineering
Guided Missile and Space Vehicle Manufacturing • 11 - 50 employees

$92K - $127K/yr

Full-time

Re-posted 10 days ago


Job description

Position Summary
Mainstream Engineering is looking for a Senior Thermal Engineer to develop advanced thermal management technologies for military, government, and commercial applications. This is an R&D-focused role for an engineer who enjoys solving difficult problems, working with hardware, and turning ideas into real products.
Our thermal engineers don't simply perform analysis and hand off their work. You can take an idea from concept to prototype to testing to production. You'll have the opportunity to identify new technologies, develop proposals around your ideas, design and build experimental hardware, perform testing, analyze results, interact directly with customers, and help transition successful technologies into production.
Our current work includes thermal systems for hypersonic vehicles, high-power laser systems, and power-dense aerospace platforms, with a focus on reducing size, weight, and power while improving system performance.
You'll have the opportunity to work with technologies including:
  • Microchannel cooling
  • Additively manufactured 3D cooling passages
  • Single-phase pumped fluid loops
  • Vapor compression and other refrigeration cycles
  • Radiation thermal management
  • Heat exchangers and electronics coldplates
  • Thermal energy storage
  • Oscillating heat pipes
  • Advanced experimental cooling techniques

Your creativity and curiosity can help determine what we investigate next.
What You'll Do
  • Lead thermal engineering projects from concept through prototype, testing, and production
  • Develop innovative thermal management solutions for challenging real-world applications
  • Perform analytical calculations involving heat transfer, thermodynamics, and fluid mechanics
  • Develop and evaluate computational models using CFD and FEA tools
  • Design, build, instrument, and test experimental hardware
  • Develop laboratory test plans and analyze experimental data
  • Work with temperature, pressure, flow, and other instrumentation and data acquisition systems
  • Collaborate directly with customers to understand requirements and develop solutions
  • Prepare technical proposals and develop new R&D concepts
  • Support design for manufacturability and transition of successful technologies into production
  • Research emerging thermal technologies and identify opportunities for new product development
What We're Looking For
We're looking for engineers who are curious, creative, self-motivated, and excited by difficult technical problems.
Required:
  • Master's or PhD in Mechanical Engineering or Aerospace Engineering
  • Minimum of a 3.3 for all completed degrees
  • 10+ years of professional engineering experience
  • Strong understanding of heat transfer, thermodynamics, and fluid mechanics
  • Hands-on laboratory, prototype, or experimental testing experience
  • Experience developing thermal systems, components, or technologies
  • Ability to independently lead technical projects and solve complex engineering problems
  • U.S. Citizenship due to ITAR requirements

Preferred:
  • Experience with data acquisition systems; LabVIEW experience is a plus
  • Experience with CFD and/or FEA; ANSYS/FLUENT experience is a plus
  • Experience designing and testing thermal management systems
  • Experience working with aerospace, defense, or other high-performance systems
  • Experience taking R&D concepts through prototype development and into production
Why This Role Is Different
You won't be limited to one piece of the engineering process.
At Mainstream Engineering, our engineers have the opportunity to research, design, build, test, analyze, present, and manufacture their ideas. If you see a better way to solve a problem, you have the opportunity to investigate it.
If you're the type of engineer who would rather build and test something than just talk about it, this could be a great fit.
Join a team where your technical curiosity can become the next technology we develop.
Mainstream Engineering Corporation is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.