Mechanical Engineer Sr - E3

Posted 5 Days Ago
Be an Early Applicant
Titusville, FL, USA
In-Office
85K-158K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Designs and develops metallic and composite missile structures for the D5LE and D5LE2 programs. Responsibilities include creating 3D models and drawings using GD&T, developing test plans, supporting design and production reviews, collaborating with manufacturing engineers, contributing to technical data and proposals, and communicating with technical teams, leadership, and Navy customers. The role supports fleet sustainment and new missile development through design, analysis, testing, production, and program reviews.
Summary Generated by Built In
Standard Job 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.


We want you to support the Fleet Ballistic Missile (FBM) D5LE & LE2 Program in the Propulsion, Structures, Ordnance, and Controls (PSOC) team by joining the Structures Mechanical Engineering group as a Mechanical Engineer for structural metallics/composites and secondary support.  

The selected candidate will be involved in current sustainment of the D5LE fleet, and future D5LE2 missile efforts.  In addition to assisting in developing requirements, designing structures components through all phases of the development and production lifecycle, and bring designs, hardware, analysis, and test results through various reviews, into test flights, and on to production for D5LE2. 

Note: US citizenship and ability to obtain Top Secret clearance 

As a Mechanical Engineer on the FBM program, you will: 
•    Sustainment of the existing D5LE and future D5LE2 fleet 
•    Create and Develop test plans with appropriate IPT 
•    Provide technical inputs in required data products, proposals, and Technical Interchange Meetings 
•    Design 3D models utilizing GD&T and drawings 
•    Collaborate with manufacturing engineers throughout build cycle 
•    Execute in a fast-paced environment 
•    Create and communicate at various program reviews, Technical Interchange Meetings, Working Groups, etc. 
•    Effectively communicate to various levels of leadership, inclusive of Navy counterparts, both technical and non-technical 


The information below reflects the standard job description for this position 

Researches, plans, designs and develops mechanical products and systems such as instruments, controls, robots, engines, machines and mechanical, thermal hydraulic or heat transfer systems for production, transmission, measurement, and use of energy. Applies research to the planning, design, development, and testing of mechanical and/or electromechanical systems, instruments, controls, engines, and/or machines.

Basic Qualifications
  • Relevant experience and education as a Mechanical Engineer in a design role, manufacturing, production, or related role
  • Proven self-starter with demonstrated capability to proactively work through difficult technical design constraints
  • Experience in 3D modeling software (Creo or solidworks, etc)
  • Microsoft Office suite of tools (powerpoint, excel, etc)
  • Ability to obtain a Top Secret clearance
Desired Skills
  • Demonstrated performance of being part of program development reviews (SRR, PDR, CDR)
  • Experience with frequent customer interface and leadership interface
  • Experience with designing composites
  • Experience with designing metallics
  • Experience with test planning
  • Experience with manufacturing and Design for X
  • Experience with Model Based Engineering Practices
  • Project management knowledge with Risks and Opps, Earned Value, schedule inputs, estimating resources
  • Proficient in AI prompting as it applies to this position and practice.

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.

Skills Required

  • Relevant experience and education as a Mechanical Engineer in a design, manufacturing, production, or related role
  • Ability to proactively work through difficult technical design constraints
  • Experience with 3D modeling software such as Creo or SolidWorks
  • Proficiency with Microsoft Office tools, including PowerPoint and Excel
  • Ability to obtain a Top Secret clearance
  • Experience participating in program development reviews such as SRR, PDR, and CDR
  • Experience with frequent customer and leadership interface
  • Experience designing composite structures
  • Experience designing metallic structures
  • Experience with test planning
  • Experience with manufacturing and Design for X
  • Experience with Model-Based Engineering practices
  • Project management knowledge including risks and opportunities, earned value, schedule inputs, and resource estimating
  • Proficiency in AI prompting as applied to the position

Lockheed Martin Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lockheed Martin and has not been reviewed or approved by Lockheed Martin.

  • Retirement Support — Retirement benefits are described as a standout element, with a strong 401(k) program and options like an employee stock purchase plan. Feedback suggests these features meaningfully enhance total compensation and long‑term financial security.
  • Healthcare Strength — Healthcare coverage is portrayed as comprehensive from day one, with multiple plan options, mental health resources, and virtual care. Wellness supports such as on‑site services and preventive programs are also highlighted.
  • Flexible Benefits — Work arrangements often include compressed schedules and telework, contributing to a favorable work‑life balance. Feedback suggests this flexibility is a key reason many view the overall package positively.

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The Company
HQ: Bethesda, MD
108,588 Employees
Year Founded: 1912

What We Do

Customer Focus, Innovation and Purpose are Built Into Everything We Do. Lockheed Martin. Your Mission is Ours ™. Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.

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