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Senior Thermal Engineer Jobs in Colorado (NOW HIRING)

Senior Thermal Engineer

Denver, CO · On-site

$107K - $147K/yr

Senior Thermal Engineer A bout Gravitics   At Gravitics, we're not exploring space--we're building it. We're creating the infrastructure for a thriving space economy, enabling ...

We are looking to add a Senior Thermal Engineer to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge hardware for satellites, spacecraft, and ...

As a Senior Thermal Engineer, you will be responsible for the thermal engineering activities related to spacecraft design, manufacturing, testing, launch, and operations. Your activity may include ...

New

As a Senior Thermal Engineer, you will be responsible for the thermal engineering activities related to spacecraft design, manufacturing, testing, launch, and operations. Your activity may include ...

New

As a Senior Thermal Engineer, you will be responsible for the thermal engineering activities related to spacecraft design, manufacturing, testing, launch, and operations. Your activity may include ...

Senior Thermal Engineer

Westminster, CO · On-site

$133K - $161K/yr

We are looking to add a Senior Thermal Engineer to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge hardware for satellites, spacecraft, and ...

Senior Thermal Engineer

Westminster, CO · On-site

$133K - $161K/yr

We are looking to add a Senior Thermal Engineer to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge hardware for satellites, spacecraft, and ...

Description About the Role We're looking for an experienced Mechanical or Thermal Engineer to join our team on a short-term contract focused on designing and validating a dedicated cooling system for ...

Senior Thermal Analyst

Golden, CO · On-site

$125 - $150/hr

We arecurrentlyseekinga Senior Thermal Analyst to contribute to our mission in a dynamic startup ... Collaborate with multidisciplinary engineering teams to ensure compliance with customer and program ...

We arecurrentlyseekinga Senior Thermal Analystto contribute to our mission in a dynamic startup ... Collaborate with multidisciplinary engineering teams to ensure compliance with customer and program ...

We are currently seeking a Senior Thermal Analyst to contribute to our mission in a dynamic startup ... Collaborate with multidisciplinary engineering teams to ensure compliance with customer and program ...

Senior Thermal Analyst

Arvada, CO · On-site

$102K - $145K/yr

We are currently seeking a Senior Thermal Analyst to contribute to our mission in a dynamic startup ... Collaborate with multidisciplinary engineering teams to ensure compliance with customer and program ...

Thermal Engineer

Golden, CO · On-site

$140K - $170K/yr

The Role We are looking for a Mid to Senior Level Thermal Engineer to fully own the design and analysis of thermal management systems for our self-assembling tiles and spacecraft. You will own the ...

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Senior Thermal Engineer information

See Colorado salary details

$62.6K

$133.1K

$193K

How much do senior thermal engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for senior thermal engineer in Colorado is $133,077.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,900.00 and $150,900.00 per year, depending on experience, location, and employer.

What does a senior thermal engineer do?

A Senior Thermal Engineer is responsible for designing, analyzing, and optimizing thermal management systems in products or processes. They use advanced simulation tools and engineering principles to ensure components operate within safe temperature ranges, often in industries such as aerospace, automotive, and electronics. Their role involves collaborating with cross-functional teams to solve complex heat transfer challenges, improve energy efficiency, and support product development from concept to production. Additionally, they may mentor junior engineers and contribute to research and development efforts.

What are the typical challenges a senior thermal engineer faces when collaborating with cross-functional teams on new product development?

Senior Thermal Engineers often work closely with mechanical, electrical, and design teams to ensure thermal management solutions align with overall product requirements. A common challenge is balancing thermal performance with constraints such as size, weight, cost, and manufacturability. Effective communication and early involvement in the design process are key to addressing potential issues before they become costly or difficult to resolve. Additionally, integrating feedback from testing and simulations into collaborative workflows is essential for optimizing solutions and meeting project deadlines.

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

To thrive as a Senior Thermal Engineer, you need a solid background in mechanical or aerospace engineering, advanced knowledge of thermodynamics and heat transfer, and several years of relevant experience. Proficiency in simulation tools like ANSYS, FloTHERM, and CAD software, as well as familiarity with relevant industry standards, is typically required. Strong problem-solving, project management, and communication skills help you excel in cross-functional teams and complex projects. These competencies are critical for designing effective thermal solutions, ensuring system reliability, and driving innovation in high-performance environments.

What is the difference between Senior Thermal Engineer vs Mechanical Engineer?

AspectSenior Thermal EngineerMechanical Engineer
Required CredentialsBachelor's or Master's in Mechanical, Mechanical Engineering, or Thermodynamics; certifications like ASME or HVAC licensesBachelor's or Master's in Mechanical Engineering; similar certifications often applicable
Work EnvironmentDesigning thermal systems, heat transfer analysis, HVAC, aerospace, or energy sectorsDesign, analysis, manufacturing, and testing across various industries including automotive, aerospace, and manufacturing
Employer & Industry UsageEngineering firms, energy companies, HVAC providers, aerospaceManufacturers, consulting firms, product design companies, industrial sectors

While both roles require a background in mechanical engineering, Senior Thermal Engineers specialize in heat transfer, thermal system design, and energy efficiency, often within specialized sectors like aerospace or energy. Mechanical Engineers have broader responsibilities across various mechanical systems. The roles overlap in credentials and work environments but differ in focus and expertise.

What are the most commonly searched types of Thermal Engineer jobs in Colorado?

The most popular types of Thermal Engineer jobs in Colorado are:

What are popular job titles related to Senior Thermal Engineer jobs in Colorado?

For Senior Thermal Engineer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Senior Thermal Engineer jobs in Colorado look for?

The top searched job categories for Senior Thermal Engineer jobs in Colorado are:

What cities in Colorado are hiring for Senior Thermal Engineer jobs?

Cities in Colorado with the most Senior Thermal Engineer job openings:

Infographic showing various Senior Thermal Engineer job openings in Colorado as of August 2026, with employment types broken down into 88% Full Time, 9% Part Time, and 3% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $133,077 per year, or $64 per hour.

Senior Thermal Engineer

Roman Health Pharmacy LLC

Westminster, CO • On-site

$125 - $150/hr

Other

Medical, Dental, Vision, Life, Retirement

Posted 5 days ago


Job description

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 eligible to obtain the required authorizations from the U.S. Department of State.

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are looking to add a Senior Thermal Engineer to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you.

In this position, you will be responsible for the design, analysis, and validation of thermal control systems for Cesium’s next-generation products. The ideal candidate will combine extensive experience in developing and analyzing thermal management systems for spacecraft, satellite electronics, and airborne systems with deep knowledge in space and aerospace thermal environments.

As a senior member of a cross-functional team, you will be responsible for thermal designs from initial concept design through requirements definition, detailed design, simulation/analysis, manufacturing, testing, qualification of Cesium’s products. You will work closely with other electrical and mechanical engineers on an integrated team to develop highly optimized solutions.

The successful candidate will also present engineering design review materials to customers and upper management, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
  • A Bachelor of Science (BS) or higher in Mechanical, Thermal, or Aerospace Engineering from an accredited university or institution.
  • 5 years of industry experience in thermal/mechanical design and analysis utilizing a mixture of numerical and analytical techniques. A Master of Science may count as 2 years of experience.
  • Expertise in electronics/PCBA, box, and system-level thermal design and analysis.
  • Strong proficiency in professional simulation tools such as ANSYS (preferred) or Thermal Desktop, as well as MCAD tools such as SolidWorks (preferred).
  • Strong mechanical engineering and heat transfer foundation.
  • Experience designing and analyzing radiative, conductive and convective heat transfer for various applications.
  • Experience building thermal resistance networks and reduced order thermal models for complex thermal systems.
  • Experience correlating thermal models with thermal chamber or TVAC test results.
  • Experience developing analysis automation tools (spreadsheet or script-based).
  • Familiarity with common manufacturing processes for thermal control systems.
  • Familiarity with the development of thermal control systems and fixtures for lab environments.
PREFERRED EXPERIENCE
  • Expertise in thermal management of phased array and/or high-power RF electronics.
  • Experience in thermal analysis of electronics at the die, lead-frame, and package level.
  • Proficiency with computational scripting languages (Matlab, Python, Mathematica, etc.).

$133,000 - $161,000 a year

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard torace, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

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