Associate, Mechanical Engineering - Sustainment

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

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. L3Harris Technologies is proud to be an

Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination.

All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

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