1

Thermal Engineer Jobs in Boston, MA (NOW HIRING)

Thermal Test Engineer

Burlington, MA · On-site

$75K - $90K/yr

What You'll Do As a Thermal Test Engineer, you will be a critical part of our product development and manufacturing process. You will be responsible for leading our thermal test lab, ensuring the ...

Thermal Senior Principal Engineer Join us as a Thermal Senior Principal Engineer on our Network Engineer Hardware team in Franklin, MA to do the best work of your career and make a profound social ...

Thermal Senior Principal Engineer Join us as a Thermal Senior Principal Engineer on our Network Engineer Hardware team in Franklin, MA to do the best work of your career and make a profound social ...

We are looking for a Senior Thermal Engineer to join our rapidly growing analysis team in Lexington, MA . In this role, you will be responsible for performing thermal analysis and taking ownership of ...

next page

Showing results 1-20

Thermal Engineer information

See Boston, MA salary details

$47.3K

$113.6K

$182K

How much do thermal engineer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for thermal engineer in Boston, MA is $113,559.00, according to ZipRecruiter salary data. Most workers in this role earn between $86,900.00 and $140,100.00 per year, depending on experience, location, and employer.

What is a thermal engineer?

Thermal engineers are professionals who specialize in the study and application of heat transfer and thermodynamics. They design, analyze, and optimize systems and components that involve heating or cooling processes, such as HVAC systems, engines, electronics, and power plants. Their work is essential in industries like aerospace, automotive, electronics, and energy, where managing temperature is critical for performance and safety. Thermal engineers use advanced simulation tools and mathematical models to solve complex heat-related challenges and improve energy efficiency.

What does a thermal engineer do?

As a thermal engineer, you maintain, create, or repair mechanical systems that involve a heat transfer process into other forms of energy. You analyze how mechanical heat sources interact with different physical and industrial systems. You test various components of heat transfer within a system, which sometimes involves chemical fluids and gas. You may work with large or small-scale heating or cooling equipment, from industrial heaters to airplane engines. Other duties and responsibilities require you to work in locations in need of heat or cooling mitigation, such as a power plant or landfill. Aerospace companies, public utilities, and other industrial firms hire thermal engineers.

What are the key skills and qualifications needed to thrive as a thermal engineer, and why are they important?

To thrive as a Thermal Engineer, you need a solid background in thermodynamics, heat transfer, and fluid mechanics, typically supported by a degree in mechanical or thermal engineering. Proficiency with simulation and modeling tools such as ANSYS, MATLAB, and CFD software, as well as familiarity with industry standards, is often required. Strong analytical thinking, problem-solving abilities, and effective communication skills help distinguish top performers in the field. These skills are crucial for designing efficient thermal systems, troubleshooting performance issues, and collaborating with multidisciplinary teams to meet project goals.

What are some common challenges thermal engineers face when designing cooling systems for electronic devices?

Thermal Engineers often encounter challenges such as managing heat dissipation in increasingly compact and high-powered electronic devices, where space for cooling solutions is limited. Balancing performance, efficiency, and cost while ensuring reliability requires careful selection of materials and innovative thermal management techniques. They must also collaborate closely with electrical and mechanical engineers to integrate thermal solutions without compromising overall device functionality. Adapting to rapidly evolving technologies and staying updated on industry standards is essential for long-term success in this role.

What is the difference between Thermal Engineer vs Mechanical Engineer?

AspectThermal EngineerMechanical Engineer
CredentialsBachelor's or Master's in Mechanical, Mechanical Engineering, or ThermodynamicsBachelor's or Master's in Mechanical Engineering or related field
Work EnvironmentDesigning thermal systems, heat transfer analysis, HVAC, aerospace, electronics coolingDesigning mechanical systems, structural components, manufacturing processes
Industry UsageElectronics, aerospace, HVAC, energy systemsAutomotive, manufacturing, robotics, aerospace

Thermal Engineers specialize in heat transfer, thermodynamics, and thermal system design, often working on electronics cooling and energy systems. Mechanical Engineers have a broader scope, covering mechanical design, structural analysis, and manufacturing. While both roles require similar educational backgrounds, Thermal Engineers focus more on thermal aspects within various industries, whereas Mechanical Engineers handle a wider range of mechanical systems.

How much do thermal engineers get paid?

Thermal engineers typically earn between $70,000 and $110,000 annually, depending on experience, location, and industry. Senior roles or those with specialized skills in heat transfer analysis or CFD software can earn higher salaries, often exceeding $120,000. Compensation may also include benefits such as bonuses and professional development opportunities.

Is thermal engineering in demand?

Thermal engineering is in demand across industries such as aerospace, automotive, energy, and manufacturing, where thermal management and heat transfer are critical. The role often requires knowledge of thermodynamics, heat transfer analysis, and simulation tools, with job growth driven by advancements in technology and sustainable energy solutions.

What are the most commonly searched types of Thermal Engineer jobs in Boston, MA?

The most popular types of Thermal Engineer jobs in Boston, MA are:

What job categories do people searching Thermal Engineer jobs in Boston, MA look for?

The top searched job categories for Thermal Engineer jobs in Boston, MA are:

What cities near Boston, MA are hiring for Thermal Engineer jobs?

Cities near Boston, MA with the most Thermal Engineer job openings:

Infographic showing various Thermal Engineer job openings in Boston, MA as of August 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $113,559 per year, or $54.6 per hour.

Senior Thermal Analyst- Marlborough, MA

Prattwhitney

Marlborough, MA • On-site

$125 - $150/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 20 days ago


Pratt & Whitney rating

8.7

Company rating: 8.7 out of 10

Based on 157 frontline employees who took The Breakroom Quiz

16th of 72 rated aerospace companies


Job description

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

The Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design robustness across the Raytheon portfolio of products. From preliminary concepts to fielded weapon system support, MA&T delivers innovative structural and thermal engineering solutions utilizing methods ranging from classical fundamental & empirically based techniques to state-of-the-art finite element methods leveraging industry leading commercial tools; all complimented and validated by tests executed in a manner to ensure cost effective yet technically balanced solutions.

The Senior Thermal Analyst position is located in Marlborough, MA and the role is onsite. As a mid-level career Senior Thermal Analyst you will be responsible for detailed thermal analysis on products throughout their lifecycle from initial design trade studies and proposals through qualification testing to enduring production support. The analysis will cover a wide range of difficult problems, requiring solutions that are imaginative, thorough, practicable, and consistent with organization objectives. The analysis tasks will span the spectrum from classical hand analyses to detailed analyses requiring the use of finite element analysis software. A Thermal Engineer of this salary grade is expected to have a level of technical competence with thermodynamic principles. The Thermal Engineer will be held accountable for completing his/her work within the agreed upon cost and schedule. Additionally, the selected candidate will be expected to present their work for peer reviews and to be a peer reviewer for other engineers’ work. Finally, the engineer is expected to plan and support tests, perform data reduction and engage in thermal model correlation.

What You Will Do
  • Perform Hand Calculations to determine scope of higher detail analysis models
  • Perform detailed thermal analyses to solve various program thermal challenges
  • Generate test plans required to validate analyses and verify hardware compliance to customer requirements
  • Analyze test data to validate and correlate models
  • Work with experienced analysts on problems of moderate complexity to provide the answers needed under program cost and schedule constraints
  • Review your work with peers to ensure technical accuracy
  • Present results to internal, external, and government customers
  • Generate detailed documentation of work and archive for reference
  • Act as a technical leader (help define/refine and/or develop MA&T department technical processes and tools) and/or lead analysis/test teams
Qualifications
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.
  • Experience in thermal analysis with any of the following tools: FloTHERM, PATRAN, Thermal Desktop/SINDA or ANSYS or equivalent.
  • Experience in mechanical principles to solve classical thermal analysis solutions both inside and outside of finite element tools and an ability to work independently and manage multiple priorities.
  • Ability to obtain a U.S. government issued security clearance.
  • U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, Clearance must be active and transferable prior to start date.
  • Demonstrated experience in thermal testing: Planning, organization, execution, data reduction and correlation.
Preferred Qualifications
  • Degree in Mechanical or Aerospace Engineering.
  • 5+ years of professional experience in the thermal analysis of complex systems that require collaboration across multiple engineering disciplines.
  • Experience with solid modeling CAD tools such as CREO or equivalent.
  • Experience in Electronics Cooling and Aerodynamic Heating Analyses.
  • Experience presenting to external customers.
  • Demonstrated experience in leading a team of thermal analysts on program efforts.
  • Demonstrated experience in leading thermal testing, including model correlation.
  • Ability to travel to government and other facilities in support of program activities.
  • Advanced degree in aforementioned disciplines.
  • ABET is the preferred, although not required, accreditation standard.
What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs.

  • Parental (including paternal) leave
  • Flexible work schedules
  • Achievement awards
  • Educational assistance
  • Child/adult backup care

Relocation Eligible - relocation assistance is available for this position.

Salary

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Benefits Overview
  • Medical
  • Dental
  • Vision
  • Life insurance
  • Short-term disability
  • Long-term disability
  • 401(k) match
  • Flexible spending accounts
  • Flexible work schedules
  • Employee assistance program
  • Employee Scholar Program
  • Parental leave
  • Paid time off
  • Holidays

Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

Privacy Policy and Terms: Click on this link to read the Policy and Terms.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.

#J-18808-Ljbffr

What Pratt & Whitney employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Pratt & Whitney logo

About Pratt & Whitney

Sourced by ZipRecruiter

Pratt & Whitney has a long history of leadership and innovation in the field of aviation propulsion. Our story begins in the 1920s and has flourished throughout the decades. We have continuously transformed and reinvented our businesses to offer superior products and services to our customers. In 1925, the Pratt & Whitney Aircraft Company was founded by Frederick B. Rentschler, pioneer of the air-cooled radial engine design which enabled unprecedented power-to-weight ratio. Its first engine, the R-1340 Wasp engine, transformed military and commercial aviation and is still in use today. In 1928, the Canadian division of the Pratt & Whitney Aircraft Company was established. In 1944, Pratt & Whitney began its gas turbine and jet propulsion initiative. The company constructed a wind tunnel, laboratory and engineering center to support our allies’ efforts in World War II. In 1945, wartime production included more than 300,000 Pratt & Whitney engines, touted by service members as extremely dependable – a legacy that continues today. From there, Pratt & Whitney continued to design and innovate more powerful, agile, and reliable engines becoming a leader in the aerospace industry. Today, Pratt & Whitney has more than 85,000 engines in service and more than 16,000 customers worldwide.

Industry

Engineering professional services

Company size

10,000+ Employees

Headquarters location

East Hartford, CT, US