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Salary
≈ $59k – $106k per year (Estimated)
Location
In office (Greenville)
Visa
H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Oct 29, 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: Associate, Mechanical Engineering - Sustainment

Job Location: Greenville, TX

Job Description:

The Sustainment Engineer Associate supports aircraft maintenance, modification, and repair activities by assisting in the evaluation of discrepant conditions, interpreting technical data, and developing basic engineering solutions under guidance from more experienced engineers. This entry-level role applies fundamental mechanical or aerospace engineering principles to aircraft systems, structures, and installations within production, maintenance, and repair environments.

The Sustainment Engineer Associate works closely with Manufacturing, Quality, Design Engineering, and Program teams to help maintain production flow, support aircraft sustainment activities, and ensure structural and functional integrity of delivered products. The role supports the transition from engineering design to manufacturing and installation, assists with troubleshooting production and maintenance issues, and contributes to engineering documentation and technical communication. Sustainment Engineering Associates receive mentorship and direction while gradually developing decision-making capability, technical proficiency, and cross-functional coordination skills.

Essential Functions:

  • Apply critical thinking, proactive learning, and engineering problem-solving skills to evaluate nonconforming conditions and determine appropriate engineering dispositions.
  • Review and interpret engineering drawings, specifications, models, tolerances, and technical documentation to support MRB decision-making.
  • Communicate effectively across engineering and production teams using strong written and verbal communication skills.
  • Support off-shift or overtime work as required to meet program schedules and aircraft delivery commitments.
  • Navigate and work within aircraft hangars, flight lines, and manufacturing facilities; must be able to board and exit aircraft, including maneuvering in restricted areas such as wings, fuselage compartments, and fuel tanks using appropriate safety gear.

Qualifications:

  • To be eligible, applicants must be pursuing a Bachelor’s Degree in Mechanical Engineering, Aerospace Engineering, or a related STEM discipline or have completed their Bachelor’s degree within the last 12 months, regardless of age.

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