Flight Sciences Thermal Engineer; Level 2 Security Clearance

Position: Flight Sciences Thermal Engineer (Level 2) with Security Clearance
Job Number 719101

Description:

Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve.

We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you.

The Mechanical Engineer - Thermal Engineering (Level
2) will support the design, analysis, and validation of thermal systems for advanced aerospace and defense applications. This role involves conducting thermal analyses, developing thermal control solutions, and collaborating across multidisciplinary teams to ensure system performance in extreme environments. The selected candidate will perform steady-state and transient thermal modeling, support hardware development and test activities, and contribute to system-level integration efforts.

This position requires strong analytical skills, attention to detail, and the ability to translate requirements into effective thermal design solutions.

Key Responsibilities:

• Perform steady-state and transient thermal analyses for aerospace or defense systems

• Develop and maintain thermal models using analytical and numerical methods

• Support design of thermal control systems including conduction, convection, and radiation solutions

• Generate thermal predictions, margins, and design documentation

• Support environmental and qualification testing (TVAC, vibration, thermal cycling)

• Collaborate with structural, fluids, avionics, and systems engineering teams

• Present analysis results to internal stakeholders and program leadership

• Support root cause investigations and anomaly resolution efforts

Basic Qualifications:

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related STEM discipline
• 2+ years of professional experience in thermal engineering or heat transfer analysis (internships/co-ops may be considered)
• Experience performing thermal analysis using tools such as Thermal Desktop, SINDA/FLUINT, ANSYS, or similar
• Working knowledge of heat transfer principles (i.e. conduction, convection, radiation) and thermodynamics
• Ability to obtain and maintain a Secret security clearance, thus US Citizenship is required
Desired

Skills:

• Master's degree in Mechanical or Aerospace Engineering
• Experience supporting aerospace, missile, spacecraft, or hypersonic programs
• Familiarity with thermal protection systems (TPS) or high-temperature materials
• Experience with transient thermal modeling and coupled thermal-structural analysis
• Understanding of fluid systems and convective heat transfer
• Experience supporting thermal vacuum (TVAC) or environmental test campaigns
• Knowledge of industry standards (NASA, DoD, MIL-STD)
• Proficiency in MATLAB or Python for data reduction and automation
• Strong technical writing and presentation skills
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Secret
Other Important Information You Should Know
Expression of Interest:
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Onsite Full-time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
Work Schedules:
Lockheed Martin supports a variety of alternate…