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Specialist, Systems Engineering

Greenville, Texas
Full Time On-site

L3Harris Technologies is seeking a Specialist, Systems Engineer/Architect. The ideal candidate is responsible for the daily technical and operational activities of a high‑performance System Integration Laboratory (SIL) environment supporting advanced airborne ISR ground exploitation systems. This role combines hands‑on technical oversight, upgrade, installation and maintenance of the system. This position has a direct impact on system readiness, mission success, and the continuous improvement of SIL workflows and capabilities.

Essential Functions:

  • Interfaces with the supervisor, customer, software development engineers, project engineering, and program management to determine SIL architecture and support requirements.
  • Assists in planning / executing periodic SIL upgrades to new equipment and software configurations.
  • Review and evaluate system diagrams to ensure design details trace to system requirements.
  • Understand physical architecture incorporating voice and data capability across multiple security domains.
  • Install, test, troubleshoot, and verify system upgrades and system infrastructure to meet customer performance expectations.
  • Translate the voice of the customer into system level requirements.
  • Understand test, integration, verification, and validation planning.
  • Author and execute effective verification test procedures ensuring system performance and capabilities meet system requirements.
  • Perform hands-on test, integration, and verification of software and/or hardware.
  • Monitors ongoing test/integration activities and provides technical support, troubleshooting and recommendations for repair or replacement of defective or outdated equipment.
  • Familiar with installation and configuration of Virtual Machines (VMs) in a Linux environment.
  • Starts up all SIL equipment and verifies system readiness for testing.
  • Excellent written, oral, and presentation communications skills.
  • Candidate must be willing and able to work a flexible job schedule to include occasional overtime.
  • Candidate must be willing to travel both CONUS and OCONUS up to 10% of the time.
  • The candidate will be required to obtain and maintain CompTIA Security+ certification.
  • Active Secret Clearance at the time of hire with the ability to obtain a Top Secret with SCI.

Qualifications:

  • Bachelor’s Degree and a minimum of 4 years of prior related systems engineering experience.
  • Graduate Degree or equivalent with 2 years of prior related systems engineering experience.
  • In lieu of a degree, a minimum of 8 years of prior related systems engineering experience.
  • Demonstrated understanding of hardware test strategies, fault isolation, automated tests, use of diagnostic test equipment, and generating and interpreting test requirements.
  • Demonstrated experience in systems engineering, systems architecture, systems analysis and design, system performance modeling, integration, and/or model-based systems engineering. 
  • Demonstrated experience operating in a Linux environment.

Preferred Additional Skills:

  • Active Top Secret with SCI security clearance.
  • CompTIA Security+ Certification.
  • Experienced with DOORS and/or Jira.

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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.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

About L3 Harris

L3 Harris

L3 Harris is one of the largest defense and aerospace companies in the United States, delivering advanced technologies that support missions across air, land, sea, space, and cyber domains. The company develops communications systems, space payloads, intelligence platforms, electronic warfare capabilities, missile defense technologies, and mission-critical sensors used by the U.S. military, intelligence community, and allied nations around the world.

For job seekers, L3Harris offers opportunities across engineering, software development, cybersecurity, space systems, manufacturing, intelligence, program management, and mission operations. The company is especially attractive to veterans, cleared professionals, and engineers who want to work on advanced technologies that directly support national security. With programs spanning tactical communications, ISR platforms, satellite systems, and defense electronics, employees have the opportunity to contribute to some of the military’s most important capabilities.

Unlike companies focused on a single mission area, L3Harris operates across a diverse portfolio of defense technologies, providing employees exposure to a broad range of programs and technical disciplines. Teams work on everything from secure communications and autonomous systems to space-based sensors and electronic warfare platforms, creating opportunities for both specialization and long-term career growth within the organization.

As governments continue investing in modernization, space capabilities, resilient communications, and advanced sensing technologies, L3Harris remains one of the most important employers in the defense industry. For professionals seeking a mission-driven career with strong growth opportunities, technical challenges, and direct impact on global security, L3Harris continues to stand out as a leading destination in aerospace and defense.

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