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Senior Specialist, Systems Engineering - Flight Test (GREENVILLE)

L3Harris Technologies
Greenville, Texas Engineering Posted Aug 04, 2026
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Job Description

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.


All potential candidates should read through the following details of this job with care before making an application.

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: Senior Specialist, Systems Engineer - Flight Test

Job Code: 39518

Job Location: Greenville, TX

Job Schedule: 9/80: Employees work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off

Job Description:

We are seeking a Senior Specialist, Systems Engineer to support the test, integration, and operational performance of advanced ELINT hardware and software systems on airborne ISR platforms, with some support for ground-based systems. In this role, you will take part in flight test activities including planning, execution, troubleshooting, data collection, and overall system evaluation. You will also use and improve test equipment and processes, help coordinate testing, maintenance, and repairs, and solve technical issues across a variety of system applications. This position is ideal for someone who thrives in a hands-on, mission-focused environment and is committed to teamwork, technical excellence, and high ethical standards.

Essential Functions:

  • Partner with customers to test and evaluate both new and existing system capabilities.
  • Plan and conduct integration testing in lab environments as well as on airborne and ground-based platforms.
  • Confirm that new system features work as expected while making sure existing functionality remains reliable.
  • Collaborate with Systems Engineering, Agile Development, Flight Line Test, Product Development, and Project Engineering teams to understand and validate new system updates.
  • Document test results, system status, and hardware/software issues using established processes, and verify that fixes resolve identified problems.
  • Work directly with customers to support strong system performance and overall customer satisfaction.
  • Create end-user documentation that explains how to operate ELINT products.
  • Coordinate with management to meet project schedules and budget expectations for assigned work.
  • Provide clear, regular updates to management and customers on project progress and ongoing activities.
  • Apply operational ELINT knowledge and experience to support testing, analysis, and product performance.
  • Support analysis of customer requirements, including system and subsystem trade studies and detailed hardware/software specifications for key components.
  • Current or recently held Top Secret/SCI DoD security clearance with ability to maintain.
  • Must be able to pass and maintain a Federal Aviation Administration (FAA) Class 3 Flight Physical and be willing to participate in airborne test flights.
  • Must be able to work occasional weekend or overtime hours, as required.

Qualifications:

  • Bachelor's Degree and minimum 6 years of prior relevant engineering experience.
  • Graduate Degree and a minimum of 4 years of prior related engineering experience.
  • In lieu of a degree, a minimum of 10 years of prior related engineering experience.
  • Demonstrated operational experience with Tasking, Processing, Exploitation and Dissemination of ELINT data from an airborne ISR platform.
  • Demonstrated knowledge of ELINT receiver systems, signal analysis equipment and techniques.
  • Demonstrated experience with ELINT databases such as EPL, CED, EWIR, MIDB, etc.

Preferred Additional Skills:

  • Experience as a USAF RC-135 Combat Systems Officer (CSO) / Electronic Warfare Officer (EWO) is preferred.
  • Electronic Warfare Officers with experience on other airborne platforms and experienced ELINT Analysts are also encouraged to apply.
  • Experience with Specific Emitter Identification (SEI) tools and techniques.
  • Experience with testing and troubleshooting of ELINT or Electronic Warfare (EW) receiver systems.
  • Hardware troubleshooting and maintenance experience.
  • Experience with JIRA/Confluence/DOORS.

L3Harris Technologies is proud to be an Equal Opportunity Employer. xibtplm 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,