Aeronautical Engineer Sr – Level 3

Job ID: 726488BR Date posted: May. 07, 2026
Description:You will be the Aeronautical Engineer Sr for the Fort Worth Thermodynamics team which is responsible for advancing aircraft thermal performance and reliability.
What You Will Be Doing
As the Aeronautical Engineer Sr you will be responsible for supporting F 35, Integrated Fighter Group (IFG), and Advanced Development Programs (ADP) Lines of Business in delivering cutting edge thermodynamics solutions.
Your responsibilities will include:
• Perform Thermal Structural Analysis to ensure integrity under extreme conditions.
• Conduct Bay Ventilation Analysis for optimal airflow and temperature control.
• Develop and validate Environmental Control Systems (ECS) and Power & Thermal Management Systems (PTMS).
• Design and test Thermal Management Systems (TMS) for aircraft subsystems.
• Integrate, test, and qualify Thermal Avionics for mission critical performance.
What’s In It For You
We are committed to supporting your work life balance and overall well being, offering flexible scheduling options. Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus – if you have the passion and courage to pursue challenging work, then we want to build a better tomorrow with you.
Who You Are
You are an experienced thermodynamics professional with a proven track record in aerospace environments. You bring strong analytical skills, collaborative instincts, and a relentless focus on delivering high impact solutions. Your expertise in thermal analysis and system integration makes you a key contributor to innovative aircraft programs.
Further Information About This Opportunity
MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access.
Basic Qualifications:
• Bachelor’s degree from an accredited college in Aeronautical, Aerospace or Mechanical engineering or a related discipline.
• 3+ years of experience applying thermal science principles, tools, and processes in real world engineering or research environments
• Ability to obtain Secret Clearance
Desired Skills:
• Proficiency with the following analysis software:
o MATLAB/Simulink
o Siemens Amesim
o Siemens Simcenter 3D Thermal
• Experience with test engineering, instrumentation, data collection, and/or test reports
• Demonstrated ability to interact effectively with customers and senior management.
• Advanced degree in Aerospace or Mechanical Engineering.
• Active Secret Clearance
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 work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 4x10 hour day, 3 days off per week
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.

As a leading technology innovation company, Lockheed Martin’s vast team works with partners around the world to bring proven performance to our customers’ toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.
Experience Level: Experienced Professional
Business Unit: AERONAUTICS COMPANY
Relocation Available: Possible
Career Area: Aeronautical Engineering
Type: Full-Time
Shift: First