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Salary
$77k – $143k per year
Location
In office (Colorado Springs)
Seniority
Staff · 8+ years exp
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H-1B filings in 12 months: 5

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Sep 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: Specialist, Integration and Test Engineer

Job Code: 44871

Job Location: Colorado Springs, CO

Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked (Every Other Friday Off)

Job Description:

As the premier provider of Space Domain Awareness (SDA) mission solutions for the United States Space Force, L3Harris is seeking a mid-level Integration and Test Engineer to perform Software Systems Integration and System Test functions related to the MOSSAIC C2 Space Domain Awareness (SDA) mission. The ideal candidate will have experience in Systems Engineering Integration & Test (SEIT) activities such as Requirements Development/Derivation, Test Documentation (Plans, Procedures, Reports), Test Execution, System Troubleshooting, and Defect Tracking/Resolution.

Essential Functions:

  • Execute and assist in developing detailed test plans, procedures and cases based on system requirements.
  • Identify, record, document thoroughly, and track defects through resolution.
  • Perform manual and automated testing to ensure software performance/functionality meets the high standards required for L3Harris operations.
  • Communicate with government customers to validate requirements and clarify L3Harris engineering processes.
  • Collaborate with Systems Engineers, Software Engineers and senior Integration & Test Engineers to identify system requirements for Validation & Verification, ensuring stakeholder needs are met.
  • Participate in design reviews and provide input on requirements, product design, test methodology and potential problems.
  • Analyze test results, detect issues, and track root causes in collaboration with the development and test teams.
  • Assist in the creation and maintenance of technical documentation, including System Models based in SysML.
  • Assist in the creation and maintenance of the Test Automation suite.

Qualifications:

  • Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree with 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
  • Active U.S. DoW Secret security clearance with the ability to obtain TS/SCI access within 1 year of hire.

Preferred Additional Skills:

  • Active U.S. DoW TS/SCI security clearance.
  • Active Security+ CE certification
  • Basic knowledge of the Space Domain Awareness enterprise and engineering efforts.
  • Familiarity with MBSE/MBT/SysML
  • Familiarity with Eggplant or similar testing tools
  • Familiarity with Jira/Confluence (or equivalent)
  • Familiarity with Scaled Agile Framework & DevSecOps methodology
  • Familiarity withJava and C++ application software
  • Proficiency in Linux

In compliance with pay transparency requirements, the salary range for this role in Colorado state is $76,500 - $142,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

The application window for this position will close on 11/30/2026.

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