Thermal Engineer Sr - E3

Lockheed Martin Corporation; Orlando (FL); On-site; USD 85,000 - 158,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401(k) match

Paid time off

Holidays

Parental Leave

Flexible scheduling

Job summary

Lockheed Martin in Orlando, FL seeks a Thermal Analysis Mechanical Engineer to develop thermal analyses for complex systems, create analytical models, and validate performance across mechanical, structural, optical, thermal, and electronic assemblies. You will work with diverse teams to ensure reliability and design integrity.

The role requires strong background in heat transfer, FEM/CFD, and problem solving, with U.S. citizenship and ability to obtain DoD clearance.

Qualifications

• Bachelor's or Master's degree in mechanical/aerospace engineering is required.
• Experience with heat transfer, thermodynamics, and fluid dynamics.
• Experience with FEM and/or CFD simulation tools.
• U.S. citizenship and ability to obtain DoD clearance.

Responsibilities

• Develop thermal analysis for mechanical, structural, optical, thermal, and electronic systems.
• Create and correlate analytical models to guide product development.
• Conduct performance, structural and thermal tests and measurements.
• Report and document thermal performance.
• Assess design merits with regard to specs and reliability.
• Collaborate with suppliers of materials and components.

Skills

Heat transfer

Thermodynamics

Fluid dynamics

FEM modeling

CFD

Problem solving

Communication

Teamwork

Education

Bachelor's Degree in Mechanical or Aerospace Engineering

Master's Degree in Mechanical or Aerospace Engineering

Tools

FEM software (e.g., ANSYS)

CFD software

Job description

Standard Job Description

Lockheed Martin has an exciting opportunity for a Thermal Analysis Mechanical Engineer in Orlando, FL.

Standard Job Description

Lockheed Martin has an exciting opportunity for a Thermal Analysis Mechanical Engineer in Orlando, FL.

This person will be a member of the Mechanical Analysis team and be responsible for the development of thermal analysis for mechanical, structural, optical, thermal, and electronic systems and assemblies.

Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services.

Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. MFC is a recognized designer, developer, and manufacturer of precision engagement aerospace and defense systems for the U.S. and allied militaries. MFC develops, manufactures, and supports advanced products for military customers that include the U.S. Army, Navy, Air Force, Marine Corps, NASA, and dozens of foreign allies.

MFC also offers a wide range of products and services for the global civil nuclear power industry and the military’s green power initiatives.

• Research and development of viable thermal and structural solutions for systems and components.
• Create and correlate analytical models to provide guidance for product development.
• Conduct performance, structural and thermal tests and measurements.
• Report and document product structural and thermal performance.
• Assess design merits with regard to product specification and reliability.
• Work with materials and parts suppliers, including plastics, composites, wrought and cast metals, ceramics, additive materials, fans, blowers, heat-sinks, and thermal interface materials

Basic Qualifications

• Bachelor's Degree, preferably in Mechanical Engineering or Aerospace Engineering (or related field) with at least 3 year of experience OR Master's Degree with at least 1 year of experience
• Strong practical knowledge in heat transfer, thermodynamics, fluid dynamics principles, etc.
• Experience with Finite Element Modeling (FEM) and/or Computational Fluid Dynamics (CFD)
• Excellent problem-solving skills, with the ability to diagnose and troubleshoot complex electrical issues, demonstrated through hands‑on experience.
• Strong communication and teamwork skills, demonstrated through successful group / individual projects and collaborations.
• Must be a U.S. citizen and have the ability to obtain a Department of Defense clearance.

Desired Skills

• Experience in active thermal control hydraulics and refrigeration as it relates to the Aerospace sector.
• Demonstrated strength in thermal analysis with a desire to learn more.
• Excellent writing and verbal communication skills for generating test plans, test reports, documentation, and potentially proposals are necessary.
• Familiarity with MIL-STD-810, environmental test plans, and execution.
• Demonstrated strong problem‑solving and analytical skills.
• Good writing and oral communication skills.
• Proficiency in Windows/Microsoft Office Suite: Windows, Word, Excel, and PowerPoint.

Pay Information

Full-Time Salary Range: $85300.00 - $158300.00

At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well‑being, and help you grow—both professionally and personally.

The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.

Benefits offered

Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

• Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
• For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.