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Thermal Engineer Sr - E3

Lockheed Martin

Orlando, FLFull-time$85–158K/yrSeen 1 day agoSeen in employer's feed 1 day ago

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At a glance

Compensation
$85–158K/yr
Location
Orlando, FL
Schedule
Full-time
Work Authorization
US work authorization required

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Security clearance

Job overview

Lockheed Martin seeks a Thermal Analysis Mechanical Engineer for its Mechanical Analysis team in Orlando. The engineer will develop thermal analyses for mechanical, structural, optical, thermal, and electronic systems and assemblies, create and correlate analytical models, conduct tests, and assess product performance and reliability. The role requires a relevant engineering degree and experience, with expertise in thermal and fluid principles and modeling methods; U.S. citizenship and ability to obtain a DoD clearance are also required.

Skills & qualifications

RequiredNice to have

Skills

Heat TransferThermodynamicsFluid DynamicsFinite Element ModelingComputational Fluid DynamicsProblem SolvingTroubleshootingCommunicationTeamworkThermal Control HydraulicsRefrigerationThermal AnalysisTechnical WritingMIL-STD-810Environmental TestingMicrosoft OfficeWindowsWordExcelPowerPoint

Qualifications

Bachelor's in Mechanical Engineering or RelatedMaster's DegreeBachelor's + 3 or Master's + 1 YearsU.S. CitizenshipAbility to Obtain DoD Clearance

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match
Paid Time Off
Parental Leave
Tuition Assistance

Full job description

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.

As a Thermal Analysis Engineer, your responsibilities will include but are not limited to:

  • 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.

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

How this job compares

Set against the 7,498 open Mechanical Engineer jobs on Olive Jobs, counted October 27, 2026.

Pay
  • This posting$85–158K/yr
  • Florida median$91–159K/yr92 salary ranges
  • US median$106–160K/yr4,470 salary ranges

This range's midpoint, $122K, is 3% below the Florida median midpoint ($126K) — in the middle half of Mechanical Engineer salary ranges in Florida.

Openings
Olive Jobs lists 236 open Mechanical Engineer jobs in Florida and 7,498 across the US. 2% of them nationwide are listed as remote or flexible.
Hiring the most in Florida
Experience
This posting asks for at least 1 year of experience — less than three in four Mechanical Engineer postings that state a minimum ask for (median 5 years, across 6,189 postings).
Education
5,295 of the 7,498 open Mechanical Engineer jobs (71%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on October 27, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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