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L3Harris Technologies

L3Harris Technologies

Defense technology solutions for national security

Mechanical Engineer Intern - Structural Analysis, Space Structures

Full-Time
$88.5k - $164.5k/yr
Mid, Senior
Bachelor's, Master's
Wilmington, MA, USA
In Person

Relocation assistance is available to qualified applicants.

No H1B Sponsorship
US Top Secret Clearance Required

About the job

Requirements
  • At least 4 years of experience with a Bachelor's degree in Mechanical Engineering or another related engineering or science field, or at least 2 years of experience with a Master's degree in Mechanical Engineering or another related engineering or science field; candidates without a degree require at least 8 years of prior related experience.
  • At least 2 years of professional experience with structural analysis methods, including finite element analysis and hand calculations.
  • Professional experience with finite element analysis and pre/post-processor software, preferably Femap with Nastran.
  • At least 2 years of professional experience in aerospace systems with an emphasis on structural and dynamics analysis.
  • Ability to obtain and maintain a U.S. Top Secret/Sensitive Compartmented Information security clearance.
Responsibilities
  • Interpret design specifications and create finite element models of complex components and assemblies for structural analysis.
  • Analyze models for stress, strain, displacement, modes, and related results at component and assembly levels.
  • Prepare reports, formal documentation, and presentation materials summarizing analysis results for internal and external audiences.
  • Develop comprehensive technical approaches to meet assigned goals and assist the engineering team in meeting team objectives.
  • Interface directly with customer technical leads and management.
  • Participate in and present information for Preliminary Design Reviews, Critical Design Reviews, and Technical Interchange Meetings.
  • Interface with outside suppliers, customers, and other engineering disciplines to drive designs to closure across thermal, systems engineering, electrical, manufacturing, integration and testing, quality, and configuration management.
  • Present design details at program reviews to customers and independent reviewers.
  • Support new business opportunities.
  • Work on multiple tasks in a fast-paced environment and adapt to changing situations.
Desired Qualifications
  • Active U.S. security clearance.
  • Knowledge of system-level hardware design and development, mechanical and structural analysis, payload-level integration and testing, and risk mitigation for space-based environments.
  • Experience supporting mission and requirements definition, concept generation, trade studies, design sensitivity and optimization studies, preliminary and final design selection, component selection, integration and test support, materials selection, finite element modeling, design documentation, and collaboration with manufacturing operations for fabrication in a program team environment.
  • Experience with optics and opto-mechanical hardware.
  • Experience in the space industry.
  • Familiarity with computer-aided design software, preferably Autodesk Inventor and Creo.
  • Experience with computational programming such as MATLAB or Python.

About the company

L3Harris Technologies

L3Harris Technologies

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L3Harris Technologies provides defense and national-security technology solutions across space, air, land, sea, and cyber domains. It develops integrated systems with advanced communications, surveillance, and reconnaissance to support government agencies and defense contractors under long-term contracts. The product combines hardware, software, and services to deliver secure, interoperable, mission-critical capabilities. Its goal is to help clients strengthen operational readiness and national security through reliable, multi-domain technologies and sustained partnerships.

Company Size

10,001+

Company Stage

IPO

Headquarters

Melbourne, Florida

Founded

1895

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Simplify's Take

What believers are saying

  • July 27, 2026 DoW deals target tripling PAC-3 and quadrupling THAAD output.
  • Q2 2026 revenue hit $5.9 billion, backlog reached $42 billion, guidance rose.
  • Intuitive Machines selected August 4, 2026 for 18 spacecraft on the SDA Tranche 3 mission.

What critics are saying

  • August 17, 2026 CEO ouster spotlights governance weakness and distracts execution.
  • September 2026 program delays and supply-chain pressure threaten margins before awards definitize.
  • If interceptor capacity expansions slip past 2028, Pentagon re-sources propulsion to rivals.

What makes L3Harris Technologies unique

  • Aerojet Rocketdyne makes L3Harris indispensable for PAC-3, THAAD, and NGI propulsion.
  • Sam Mehta keeps a focused structure, emphasizing missiles, space, and spectrum dominance.
  • NASA Roman telescope hardware proves L3Harris can win complex space programs.

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Benefits

Health Insurance

Disability Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Vacation

Paid Holidays

Mental Health Support

Relocation Assistance

Growth & Insights and Company News

Headcount

6 month growth

14%

1 year growth

14%

2 year growth

14%
Yahoo Finance
Sep 11th, 2026
L3Harris lands $4.7B Patriot missile deal to boost US interceptor production to 2,000 units by 2030

L3Harris Technologies has secured a seven-year, $4.7 billion contract with Lockheed Martin to manufacture Patriot missile defence components. The Melbourne, Florida-based defence contractor will produce advanced two-pulse solid rocket motor propulsion systems for the PAC-3 Missile Segment Enhancement interceptor, designed to neutralise aircraft, cruise missiles and ballistic threats. This marks L3Harris's largest PAC-3 propulsion contract. The company operates a facility in Northampton, Massachusetts, through its KEO division, which produces naval technology including US periscope systems and radar systems for surface ships and submarines. To meet production demands, L3Harris broke ground on two new facilities in Camden, Arkansas, in June. The expansion supports the US Department of Defense's goal to increase annual interceptor production from approximately 600 units to 2,000 units by 2030.

Business Wire
Aug 30th, 2026
L3Harris tech powers NASA's Roman Space Telescope to map universe 1,000 times faster than Hubble

L3Harris Technologies has provided key components for NASA's Nancy Grace Roman Space Telescope, which recently launched successfully. The company supplied the 2.4-metre Optical Telescope Assembly and radiation-hardened electronics for the observatory, which will operate approximately 1 million miles from Earth. The telescope is designed to survey the cosmos 1,000 times faster than the Hubble Space Telescope. Once operational, it will conduct three primary surveys, including scanning roughly 12% of the entire sky in under 18 months to measure the universe's expansion rate and study supernova explosions from up to 8 billion years ago. The project represents more than a decade of collaboration between L3Harris and NASA's Goddard Space Flight Center. L3Harris has previously contributed technology to missions including the James Webb Space Telescope and Mars rovers.

Yahoo Finance
Aug 22nd, 2026
L3Harris taps Intuitive Machines to build 18 spacecraft for $1.8B missile defence mission

L3Harris Technologies selected Intuitive Machines on 4 August to build 18 advanced spacecraft platforms for the Space Development Agency's Accelerated Missile Defense Tranche 3 mission. Intuitive Machines will manufacture and deliver the satellite platforms to host L3Harris' payload technology for national security space operations. L3Harris reported Q2 2026 revenue of $5.9 billion, an 8% year-over-year increase, with net income of $600 million. The company raised its full-year 2026 revenue guidance to $23.2 billion–$23.7 billion, backed by a $42.0 billion backlog. Intuitive Machines reported Q2 2026 revenue of $206 million, more than four times its prior-year level. However, the company posted an operating loss of $47 million and burned $84 million in cash during the quarter, leaving $367 million in cash. Its backlog expanded to a record $1.8 billion.

Yahoo Finance
Aug 18th, 2026
L3 Harris CEO ousted amid misconduct allegations, echoing 2012 Lockheed Martin exit

Christopher Kubasik has been ousted as CEO of L3 Harris following allegations of misconduct. According to Semafor, citing sources familiar with the matter, an investigation found he was engaged in an inappropriate relationship with a subordinate. This marks the second time Kubasik has been forced out of a leadership position under similar circumstances. In 2012, he was set to become CEO of Lockheed Martin but resigned after an ethics investigation confirmed he had a close personal relationship with a subordinate employee. L3 Harris, headquartered in Melbourne, Florida, announced Kubasik's departure on 17 August. The company said the misconduct was unrelated to financial reporting, controls, customer relationships or operational performance. Kubasik will retain some vested stock options but won't receive severance payments.

Yahoo Finance
Aug 17th, 2026
L3Harris CEO steps down after conduct review, shares fall 2.7%

L3Harris Technologies announced the immediate departure of CEO Christopher Kubasik following a conduct review, causing shares to fall roughly 2.7% in premarket trading Monday. The board appointed Sam Mehta as president and CEO, whilst Lewis Hay III became independent chairman. The company stated Kubasik's conduct was inconsistent with its Code of Conduct, though unrelated to financial reporting, controls, customer relationships, or operational performance. Following an investigation with independent counsel, the board entered into a separation agreement with Kubasik. Mehta joined L3Harris in 2023 and brings over 25 years of aerospace and defence leadership experience. He previously led segments comprising more than 80% of the company's total revenue. Despite the leadership change, L3Harris reaffirmed its 2026 consolidated revenue and financial guidance.