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Salary
≈ $78k – $148k per year (Estimated)
Location
In office (Greenville)
Seniority
Senior · 10+ years exp
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Sep 26, 2026. L3Harris Technologies scores A on the Alion truth index.

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L3Harris Technologies is an American defense contractor formed in 2019 by the merger of L3 Technologies and Harris Corporation. It builds tactical radios and military communication systems, electronic warfare and intelligence, surveillance and reconnaissance equipment, space sensors and satellites, night vision devices, and uncrewed surface vessels, and owns the rocket engine maker Aerojet Rocketdyne. Its main customers are the United States Department of Defense and allied governments. The company is headquartered in Melbourne, Florida, United States.

Job Title: Sr. Specialist, Mechanical Engineering (Design)

Job Code: 38710

Job Location: Greenville, TX (Onsite)

Job Schedule: 1st Shift 9/80

Job Description:

The Sr. Specialist, Mechanical Engineer will be responsible for participating in the design of detailed parts, assemblies, and installations for aircraft structures, mission equipment installations, and mechanical systems installations. Engineer applies basic engineering design and/or analytical theory with understanding of structural analysis for application to integrated system design.

Essential Functions:

  • Responsible for research, development of layouts, preparation of engineering drawings, and coordination of design activities with Tooling, Flight Sciences, Manufacturing, and Production to ensure that designs meet requirements at minimum cost.
  • Designs will be accomplished using world-class, three-dimensional solid modeling CAD tools and work will be accomplished with senior-level design engineers.
  • Mechanical design engineers can work on a wide variety of tasks and aircraft systems on various aircraft platforms.
  • Ability to walk to and from the flight line, work in aircraft hangar environment and board/exit aircraft.
  • Understanding of basic aircraft systems.
  • Familiarity with aircraft structural repairs, STC’s, or general modification.
  • Excellent written, verbal, communication skills.
  • Working knowledge of MS Office Suite.
  • Willingness and ability to travel is needed.
  • Ability to obtain and maintain a DoD Secret security clearance.
  • Other duties as assigned by Supervisor.

Qualifications:

  • Bachelor’s degree with six (6) years of Mechanical design experience in aerospace industry.
  • Graduate Degree with four (4) years of Mechanical design experience in aerospace industry.
  • In lieu of a degree, a minimum of ten (10) years of Mechanical design experience in aerospace industry.
  • Minimum 4 years CAD skills (NX/Unigraphics preferred, ProE, Catia).

Preferred Additional Skills:

  • Active Secret security clearance.
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