Thermal Analysis Engineer

Amentum; Houston, Northern (TX, KY); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Thermal Analysis Engineer in Houston to develop and verify thermal control systems for NASA missions. You will create detailed thermal models, analyze spacecraft components, and collaborate across teams to ensure compliance with NASA requirements.

Ideal candidates will have a background in spacecraft thermal environments, experience with Thermal Desktop and COMSOL, and strong communication skills for engaging with NASA customers and internal stakeholders.

Qualifications

• Typically requires a bachelor's degree in Engineering with 2–5 years of related experience.
• Experience with thermal analysis tools such as Thermal Desktop, COMSOL, ANSYS Fluent.
• Strong understanding of heat transfer principles and spacecraft thermal environments.
• Excellent oral and written communication skills.
• Ability to coordinate across technical disciplines and verify designs.

Responsibilities

• Develop and maintain thermal models with Thermal Desktop, SINDA/FLUINT.
• Perform steady-state and transient analyses for spacecraft components.
• Evaluate thermal performance across mission phases.
• Support thermal verification, testing, data analysis, and model correlation.
• Collaborate with design teams to optimize PTCS and ATCS architectures.
• Document results and present to NASA customers.

Skills

Thermal analysis

Heat transfer

Communication

Education

Bachelor's degree in Engineering

Tools

Thermal Desktop

COMSOL

ANSYS Fluent

Job description

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States.

Amentum has an exciting opportunity for aThermal Analysis Engineer to join the team. TheThermal Analysis Engineer will support the development, analysis, and verification of thermal control systems that contribute to NASA's human spaceflight missions. The engineer will collaborate closely with NASA customers, subsystem teams, and cross‑disciplinary engineering groups to deliver reliable thermal solutions for both crewed and uncrewed vehicles.

Key Responsibilities:

• Develop and maintain simplified to high‑fidelity thermal models using Thermal Desktop, SINDA/FLUINT, and related tools.

• Perform steady‑state and transient thermal analyses for spacecraft components, subsystems, and integrated vehicle configurations.

• Evaluate thermal performance across mission phases, including ascent, cruise, lunar orbit, surface operations, and off‑nominal scenarios.

• Perform thermal sensitivity studies in support of vendor vehicle designs, GFE designs or requirement development.

• Support thermal verification and validation activities, including test planning, thermal vacuum testing, data analysis, and model correlation.

• Collaborate with design teams to optimize PTCS and ATCS architectures.

• Provide guidance on thermal design considerations and ensure compliance with NASA requirements and best practices.

• Participate in design reviews, technical interchange meetings, and anomaly investigations.

• Review NASA and vendor thermal designs for technical accuracy and requirement compliance.

• Document analysis results, prepare technical reports, and present findings to internal stakeholders and NASA customers.

• Support integration with systems engineering, mission operations, and hardware development teams throughout the engineering lifecycle.

Qualifications - External

Requisition Qualifications:

This position has been posted at multiple levels.Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

• Typically requires a bachelor's degree in Engineering and a minimum of 2- 5 years of experience in the field or in a related area.

• Bachelor's degree in Engineering from an accredited institution.

• Experience with thermal analysis tools such as Thermal Desktop, COMSOL, ANSYS Fluent, or similar industry‑standard software.

• Strong understanding of heat transfer principles and spacecraft thermal environments.

• Excellent oral and written communication skills, with the ability to coordinate across multiple technical disciplines.

• Ability to assess and validate thermal designs for technical accuracy and compliance with requirements

Requisition Preferences:

• Typically 5-10years of relevant engineering experience.

• BS degree in engineering and at least five years of direct engineering experience.

• Familiarity with NASA JSC organizations, processes, and procedures.

• Experience with PTCS or ATCS hardware design, analysis, testing, certification, or operations.

• Proficiency with Thermal Desktop is strongly preferred.

• Proven experience performing thermal analysis and design for aerospace systems.

• Familiarity with the Engineering Life Cycle and requirements verification processes.

• Demonstrated ability to coordinate support from a wide range of technical disciplines.

• Demonstrate strong leadership by fostering collaboration, driving clear technical direction, and contributing to a culture of accountability and high‑quality engineering.

Why Join Our Team?

In addition to exciting career opportunities, we also have:

• Excellent personal and professional career growth
• 9/80 work schedule (every other Friday off), when applicable
• Onsite cafeteria (breakfast & lunch)
• Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com

• Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.

• Must be able tocomplete a U.S. government background investigation.

• Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

Compensation Details:

EN2-EN4

The compensation range or hourly rate listed for this position is provided as a good‑faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

08/19/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low‑income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.