Senior Thermal Engineer, Spacecraft & Systems

Lockheed Martin; Littleton (CO); On-site; USD 118,000 - 219,000; Full time

Benefits offered by this job

Medical, Dental, Vision

Flexible work arrangements and 4x10s

401(k) match

Paid time off and holidays

Parental Leave

Education Assistance

Life Insurance

Short-Term Disability

Long-Term Disability

Job summary

Lockheed Martin Space is seeking a senior thermal engineer to lead end-to-end thermal analyses across missile components and integrated systems. You will own modeling strategy and contribute to design trades, requirements, and verification plans.

You will develop hand calculations, work with TVAC and environmental testing, and collaborate with structures, materials, propulsion, manufacturing, and quality teams to deliver producible thermal solutions.

Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related discipline.
• Experience in thermal/thermofluids analysis (thermophysics, heat transfer, fluid mechanics, aerodynamics, etc.).
• Experience using industry-standard thermal analysis tools such as NX/Simcenter, Thermal Desktop, SINDA, ANSYS.
• Knowledge or experience developing and managing technical requirements.
• Strong mathematical, analytical, and problem-solving skills grounded in mechanical engineering fundamentals.
• Ability to obtain and maintain a Secret security clearance, thus US Citizenship is required.

Responsibilities

• Owning end-to-end thermal modeling strategy using tools such as NX, Simcenter, SINDA/Fluent, and Thermal Desktop.
• Developing preliminary hand calculations and reduced-order models to inform early design trades before advancing to detailed simulations.
• Accounting for all relevant heating environments — conduction, convection, radiation (solar, Earth IR, albedo), aerodynamic heating, free molecular heating, and transient mission effects.
• Translating program requirements into actionable thermal design criteria and verification strategies.
• Leading technical reviews, presenting analysis results to customers, program leadership, and design teams.
• Driving thermal support for Thermal Vacuum (TVAC) and environmental testing, including instrumentation strategy and data correlation.
• Partnering across structures, materials, propulsion, manufacturing, and quality to develop producible, cost-effective thermal solutions.
• Coordinating TPS design, material selection, and component-level thermal integration.

Skills

Thermal analysis

Mechanical engineering fundamentals

Analytical problem-solving

Secret clearance eligibility

Effective communication

Education

Bachelor's degree in Mechanical Engineering

Aerospace Engineering or related discipline

Tools

NX/Simcenter

Thermal Desktop

SINDA

ANSYS

Job description

Lockheed Martin Space is seeking a senior thermal engineer to lead end-to-end thermal analyses across missile components and integrated systems. You will own modeling strategy and contribute to design trades, requirements, and verification plans.

You will develop hand calculations, work with TVAC and environmental testing, and collaborate with structures, materials, propulsion, manufacturing, and quality teams to deliver producible thermal solutions.