Mechanical Engineer, Thermal Sciences; Ph.D

Mechanical Engineer, Thermal Sciences (Ph.D.)

Join Exponent as a Mechanical Engineer in the Thermal Sciences Practice, based in Irvine, CA. The role focuses on thermal-fluid/mechanical systems analysis, including HVAC&R, turbo machinery, and combustion.

Exponent is a premium engineering and scientific consulting firm that offers multidisciplinary solutions to clients across a broad range of industries. With over 950 consultants, 640+ Ph.D.s, and 90+ disciplines worldwide, Exponent combines deep technical expertise with a commitment to safety, health, sustainability, and innovation.

• 950+ consultants
• 640+ Ph.D.s
• 90+ disciplines
• 30+ offices globally

As part of the Thermal Sciences Practice, you will participate in the investigation and analysis of thermal-fluid/mechanical systems.

Responsibilities include:

• Performing engineering calculations and analysis
• Evaluating mechanical and safety system performance
• Utilizing computational techniques such as CFD
• Conducting site fieldwork and data collection
• Performing laboratory testing and assessments
• Preparing proposals, technical reports, and presenting findings to clients
• Travel may be required within and outside the U.S.

• Ph.D. in Mechanical Engineering or related field
• Legally authorized to work in the United States; no immigration sponsorship necessary
• Strong technical background in thermal/fluid systems and CFD
• Experience with HVAC and Refrigeration systems
• Excellent verbal and written communication skills
• Hands‑on experience executing experimental programs
• Strong desire and ability to tackle a wide variety of problems

Applicants are encouraged to submit a CV/Resume, including publications. This position is open to candidates who meet the above qualifications.

Base salary: USD $135,000 – $150,000 per year, commensurate with experience. Total compensation includes salary, performance bonuses, 401(k) employer contribution of 7%, and other benefits available to the consulting workforce. Exponent’s benefits information can be accessed on the Life@Exponent page.

Exponent is a proud equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, veteran status, disability, sexual orientation, gender identity, or any other protected status. For assistance or accommodation for a disability, email H

Irvine, California