Thermal Analysis Engineer

Amentum; St. Louis (MO); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

9/80 work schedule (every other Friday off)

Onsite cafeteria (breakfast & lunch)

Excellent personal and professional career growth

Job summary

Amentum is looking for a Thermal Analysis Engineer to support NASA's human spaceflight missions. The position involves developing and analyzing thermal control systems for spacecraft. Candidates should have a Bachelor's degree in Engineering and experience with thermal analysis tools.

The role demands strong communication skills and the ability to work collaboratively with diverse teams. Benefits include a 9/80 work schedule, career growth opportunities, and onsite cafeteria.

Qualifications

• Typically requires 2-5 years of experience in thermal analysis.
• Proven experience performing thermal analysis and design for aerospace systems.

Responsibilities

• Develop and maintain thermal models using Thermal Desktop.
• Perform steady-state and transient thermal analyses for spacecraft components.
• Collaborate with design teams to optimize PTCS and ATCS architectures.

Skills

Experience with thermal analysis tools such as Thermal Desktop

Strong understanding of heat transfer principles

Excellent oral and written communication skills

Ability to assess and validate thermal designs

Education

Bachelor's degree in Engineering

Tools

Thermal Desktop

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 a Thermal Analysis Engineer to join the team with Barrios, a teammate company. The Thermal 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.

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 5-10 years 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?

• 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 to complete 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.