Cyber Intelligence, Security Systems

L3Harris Technologies · Greenville, TX

POSTED
Dec 16, 2025

About this job

L3Harris Technologies, the Trusted Disruptor in the defense industry, is seeking a talented professional for a Sr. Associate, Test/Integration Engineer position located in Greenville, TX. As part of our team, you will contribute to end-to-end technology solutions that connect space, air, land, sea, and cyber domains in support of national security. We provide an inclusive, engaging environment designed to empower employees and promote professional growth and work-life success.

In this role, you will be responsible for performing subsystem and system-level testing, troubleshooting, and integration activities for critical defense systems. Your day-to-day responsibilities will include:

  • Performing subsystem pre-operational checks and configuring Line Replaceable Units (LRUs) for single and multi-thread interface and operation.
  • Executing subsystem and system-level Ground Test Plans, as well as conducting insertion loss testing of RF harness assemblies.
  • Isolating system and subsystem issues down to the component level, identifying LRU failures, and executing necessary repairs, replacements, and retests.
  • Identifying hardware, software, and firmware anomalies and recommending corrective actions through enterprise software applications.
  • Supporting EMI/Tempest testing, software and hardware development integration, and aircraft pre-flight readiness activities.
  • Operating advanced test equipment, such as network analyzers, oscilloscopes, spectrum analyzers, digital multimeters, and fiber optic test devices.
  • Preparing and reviewing engineering documents, and advising on design changes to improve operational capabilities and equipment efficiency.
  • Participating in in-flight duties as an observer on airborne platforms when required.

To be considered for this opportunity, candidates must meet specific educational and experience criteria, which include a Bachelor’s Degree with a minimum of 2 years of prior related experience, a Graduate Degree with 0 to 2 years of experience, or a minimum of 6 years of relevant experience in lieu of a degree. Additional qualifications and requirements include:

  • Familiarity with industry-standard test equipment, COTS hardware, and Windows-based programs.
  • Experience maintaining SIGINT/COMINT mission or communications systems aboard U.S. military airborne and/or ground-based platforms.
  • The ability to obtain and maintain a U.S. DOD Secret or Top Secret Security clearance with SCI, which requires U.S. citizenship.
  • The ability to obtain a FAA Class III flight physical and maintain qualifications for in-flight duties.
  • Flexibility regarding assigned work schedules and shifts to support organizational objectives.
  • Preferred skills include strong test environment experience, familiarity with RC135 platforms, and a strong work ethic.

L3Harris Technologies is proud to be an Equal Opportunity Employer, committed to maintaining a drug-free workplace and an environment free from unlawful discrimination. We invite qualified individuals who are dedicated to our customers’ missions to apply.

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