Mechanical Design Engineer Sr - E3
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Before you apply
Salary$85k – $158k
LocationGrand Prairie, TX
Work modehybrid
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentMFC-Primary
Company size10,000+ people
First seenNov 3, 2026 · 1d ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Bachelor's Degree in Mechanical or Aerospace Engineering
Minimum of 5 years of relevant experience
Proficient in CAD systems, preferably CREO and Windchill
Knowledge of Geometric Dimensioning and Tolerancing in accordance with ASME Y14.5 and demonstrated ability to perform complex system-level tolerance analysis
Must have a Secret clearance or the ability to obtain a clearance
Experience with Design Validation or Qualification Testing
Experience evaluating SDRLs (Supplier Document Requirements List)
MRBE experience or ability to achieve MRBE certification
Experience with managing mass properties
Demonstrated success assisting/managing component supplier development and processing supplier changes
Missile or launch pod program experience
Active Secret Clearance
Must be a U.S. Citizen
Skills
CREO
Windchill
CAD
Benefits
Medical insurance
Dental insurance
Vision insurance
Flexible work schedules
401(k) match
Paid time off
Holidays
Parental leave
Employee assistance program
Flexible spending accounts
Education assistance
Life insurance
Short term disability
Long term disability
Standard Job Description
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.
About the role
We are experiencing growth and are looking for a Senior Mechanical Engineer for the Missiles & Fire Control (MFC) JR3 missile team. Our team drives innovative fire control solutions, turning concepts into flight ready hardware by developing, testing, and fielding cutting edge missile subsystems.
What You Will Be Doing
As the Senior Mechanical Design Engineer you will be responsible for delivering high quality mechanical designs that enable rapid technology insertion. Working side by side with cross functional experts and external suppliers, you’ll lead the creation, release, and evolution of drawings, bills of material, and design data that underpin our next generation fire support capabilities.
Your responsibilities will include:
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Developing and releasing CREO layouts and detailed drawings for interface control documents (ICDs), components, sub assemblies, full assemblies, and integration test articles.
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Building accurate BOMs, generating parts and assemblies, and maintaining design documentation in Windchill PLM.
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Coordinating the Integrated Product Team (IPT), suppliers, Global Supply Chain (GSC), electronic packaging, optics, and structural/thermal/material analysts to ensure design excellence and schedule adherence.
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Managing drawing releases, responding to change requests (CRs), creating change notices (CNs), and presenting/supporting change boards and design reviews.
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Conducting design trade studies that evaluate cost, weight, performance, and structural/thermal benefits to guide optimal engineering decisions.
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Participating in root cause and corrective action investigations, providing technical input that resolves issues quickly and prevents recurrence.
This position is in Grand Prairie, TX.
Requirements
MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must be able to obtain a secret clearance.
Basic Qualifications
•
Bachelor’s Degree in Mechanical or Aerospace Engineering from with a minimum of 5 years of relevant experience.
•
Proficient in CAD systems, perfer CREO and Windchill.
•
Knowledge of Geometric Dimensioning and Tolerancing in accordance with ASME Y14.5 and demonstrated perform complex system-level tolerance analysis.
•
Must have a Secret clearance or the ability to obtain a clearance, therefore you must be a US Citizen.
Desired Skills
•
Experience with Design Validation or Qualification Testing.
•
Experience evaluating SDRLs (Supplier Document Requirements List).
•
MRBE experience or ability to achieve MRBE certification.
•
Experience with managing mass properties.
•
Demonstrated success assisting/managing component supplier development and processing supplier changes.
•
Missile or launch pod program experience.
•
Active Secret Clearance.
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.
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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.