Lockheed Martin Internship Mechanical Engineering in 2026

A mechanical engineering internship at Lockheed Martin is one of the premier internship experiences in the aerospace and defense industry. Interns work on programs that define modern aerospace — from the F-35 Lightning II stealth fighter to the Orion deep-space spacecraft to next-generation missile defense systems. Unlike many internship programs where students observe or work on peripheral projects, Lockheed Martin engineering interns are embedded in real program teams and contribute to hardware and analysis that impacts national security. This guide covers the application process, compensation, typical projects, locations, and strategies for converting your internship into a full-time career.

Program Structure

Lockheed Martin's mechanical engineering internship runs for 10 to 12 weeks during the summer, typically from late May through early August. Interns work full-time (40 hours per week) and are assigned to specific programs and engineering teams within one of Lockheed Martin's four business areas.

Business Areas

Aeronautics (Fort Worth, TX; Marietta, GA; Palmdale, CA) — F-35, F-16, C-130J, advanced development programs (Skunk Works)

Missiles and Fire Control (Orlando, FL; Dallas, TX; Troy, AL) — THAAD, Javelin, JASSM, Hellfire, directed energy systems

Rotary and Mission Systems (Stratford, CT; Owego, NY; Moorestown, NJ; Linthicum, MD) — Sikorsky helicopters, naval combat systems, training and simulation

Space (Littleton, CO; Sunnyvale, CA; Huntsville, AL) — Orion spacecraft, GPS III satellites, missile warning systems, Space Development Agency programs

Compensation

Mechanical engineering interns at Lockheed Martin are well compensated relative to industry standards:

The average hourly rate for mechanical engineering interns is $30.88 per hour, according to salary data from Levels.fyi. Rates vary based on education level, relevant experience, and geographic location, with higher-cost locations (California, Colorado, Maryland) commanding premium rates.

Benefits Package

Lockheed Martin provides interns with comprehensive benefits:

• Medical, dental, and vision insurance from day one
• 401(k) plan with company matching
• Life insurance and disability coverage
• Paid time off and holiday pay
• Employee Assistance Program
• Education assistance eligibility
• Relocation support for qualifying locations

This benefits package is exceptional for an internship program and reflects Lockheed Martin's investment in attracting top engineering talent.

Typical Mechanical Engineering Projects

Mechanical engineering interns at Lockheed Martin work on substantive engineering tasks that contribute to real programs. While specific assignments vary, common project areas include:

Structural Analysis

Interns perform stress analysis, fatigue life predictions, and damage tolerance assessments on airframe structures, spacecraft components, or missile systems. This work typically involves:

• Finite element analysis (FEA) using NX Nastran, ANSYS, or Abaqus
• Hand calculations for stress margins and fatigue life
• Supporting structural test correlation with analytical models
• Documenting analysis results in formal engineering reports

Thermal Design

Thermal engineering projects involve designing heat management solutions for electronic systems, propulsion components, or spacecraft payloads:

• Thermal modeling using SINDA/FLUINT or Thermal Desktop
• Heat sink and cold plate design optimization
• Environmental testing support
• Thermal vacuum chamber test planning and execution

Mechanism Design

Interns design mechanical mechanisms and subsystems using CAD tools:

• Parametric 3D modeling in NX, CATIA, or SolidWorks
• Tolerance analysis and GD&T applications
• Design for manufacturing (DFM) review with machinists and fabricators
• Prototype fabrication and testing

Manufacturing Engineering

Some mechanical engineering interns work in manufacturing environments, optimizing production processes:

• Tooling design for assembly operations
• Process improvement using lean manufacturing principles
• First article inspection and quality validation
• Composite layup and curing process support

Test Engineering

Mechanical test engineering projects involve hands-on hardware testing:

• Vibration and shock testing per MIL-STD-810
• Proof and burst pressure testing for fluid systems
• Environmental testing (thermal cycling, altitude, humidity)
• Data acquisition system setup and operation

Application Process

Timeline

• August-October 2025: Applications open for Summer 2026 mechanical engineering internships
• September-January: Resume screening and initial candidate selection
• October-March: Phone and video interviews
• November-March: Offers extended on a rolling basis
• May-June 2026: Internship begins

How to Apply

1. Visit lockheedmartinjobs.com and search for "Mechanical Engineer Intern" or "Engineering Intern"
2. Filter by location, business area, and summer 2026 timeline
3. Create a candidate profile with your resume, GPA, and expected graduation date
4. Complete the online application — note that many postings allow you to apply to multiple positions simultaneously
5. If selected, complete a phone or video interview with an engineering hiring manager

What Lockheed Martin Looks For

Academic Requirements:

• Pursuing a BS or MS in mechanical engineering, aerospace engineering, or related discipline
• Minimum GPA of 2.8 (3.0+ is competitive, 3.5+ is highly competitive)
• Relevant coursework in mechanics of materials, thermodynamics, fluid mechanics, machine design, and manufacturing processes

Technical Skills:

• Familiarity with CAD tools (SolidWorks, NX, or CATIA)
• Understanding of FEA principles and tools (ANSYS preferred)
• MATLAB programming for engineering analysis
• GD&T and tolerance analysis knowledge

Experience and Qualities:

• Prior internship or co-op experience (valued but not required for first internship)
• University project teams (FSAE, rocketry clubs, CubeSat teams, AIAA competitions)
• Hands-on fabrication or prototyping experience
• Strong communication skills — ability to present technical work clearly
• Security clearance eligibility (U.S. citizenship for most positions)

Interview Preparation

The interview typically lasts 30 to 45 minutes and includes:

• Behavioral questions about teamwork, problem-solving, and conflict resolution
• Technical questions about your coursework and project experience
• Discussion of specific projects from your resume
• Questions about why you are interested in Lockheed Martin and the specific program
• Your questions for the interviewer about the team and work

Conversion to Full-Time

The internship is explicitly designed as a talent pipeline for full-time engineering positions. High-performing interns receive offers for full-time roles starting after graduation.

Engineering Leadership Development Program (ELDP)

Top-performing engineering interns may be offered positions in Lockheed Martin's Engineering Leadership Development Program — a structured rotational program that includes:

• Multiple engineering rotations across different programs
• Mentorship from senior engineering leaders
• Professional development and leadership training
• Cross-business-area exposure

Full-Time Conversion Process

1. Mid-internship check-in — Your manager provides informal performance feedback
2. End-of-internship evaluation — Formal performance review and recommendation
3. Return offer — Top performers receive full-time offers before leaving
4. Start after graduation — Full-time roles typically start within three months of graduation
5. Entry salary — Full-time mechanical engineers start between $72,000 and $95,000 depending on location and degree level

Intern Experience Beyond Work

Community and Networking

Lockheed Martin organizes a robust intern community experience:

• Intern orientation — Multi-day introduction to the company, your business area, and your location
• Executive speaker series — Presentations by VPs and directors about career paths and programs
• Intern social events — Organized outings, team-building activities, and community service
• Cross-functional projects — Group projects with interns from other disciplines
• Facility tours — Access to manufacturing floors, test facilities, and flight lines
• Career development workshops — Resume review, interview preparation, and leadership development

Housing and Relocation

Lockheed Martin provides relocation support for interns who need to move for the summer:

• Relocation allowance to offset moving and housing costs
• Resources for finding summer housing near your assigned facility
• Some locations have intern housing coordinators who help connect students with available rentals or roommate matching

Making the Most of Your Internship

Week 1: Get Oriented

• Meet your team, manager, and mentor
• Understand the program you are supporting and its mission
• Set up your workstation, access, and tools
• Establish clear expectations with your manager about project goals

Weeks 2-8: Deliver Value

• Focus on completing your assigned project with high quality
• Ask questions when you are stuck — do not waste days on problems your team has already solved
• Document your work thoroughly
• Seek opportunities to present your progress to the broader team

Weeks 9-10: Close Strong

• Complete your project and prepare a final presentation
• Create a handoff document so your work can continue after you leave
• Ask for feedback and a letter of recommendation
• Express your interest in a full-time role if you are interested in returning

Browse current Lockheed Martin openings, explore aerospace engineering jobs, and check out other space industry internships on Zero G Talent.

Frequently Asked Questions

Can I apply for multiple Lockheed Martin internship locations?

Yes. Lockheed Martin's application system allows you to apply to multiple positions. Applying to several locations and business areas increases your chances of placement, especially if you are flexible about geography.

Do mechanical engineering interns need security clearance?

Most intern positions do not require an active security clearance at the start. However, U.S. citizenship is typically required, and some interns begin the clearance process during the summer if they accept a full-time offer on a classified program.

What if I am a freshman — should I still apply?

Lockheed Martin primarily targets juniors and seniors for their intern program, but sophomores are accepted. Freshmen typically have better success applying to Lockheed Martin's pre-internship programs or gaining experience elsewhere first before applying as a sophomore.

How competitive is the Lockheed Martin mechanical engineering internship?

Very competitive. Lockheed Martin receives tens of thousands of intern applications each year across all disciplines. A strong GPA (3.0+), relevant project experience, and clear communication during the interview are the key differentiators.

Can I intern at Lockheed Martin if I am not studying at a top engineering school?

Absolutely. Lockheed Martin recruits from hundreds of universities across the country, not just top-ranked engineering schools. Strong academic performance, relevant project experience, and demonstrated interest in aerospace and defense matter more than university ranking.