Level 3 Communications, Inc

Senior Associate, Integration and Test Engineer

Level 3 Communications, Inc • $67K — $124K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree with 2 years relevant experience or 6 years of related experience without a degree.
  • U.S. DoD Secret security clearance required.
  • Active Security+ CE certification preferred.
  • Basic knowledge of Space Domain Awareness processes desirable.
  • Familiarity with MBSE/MBT/SysML and testing tools like Eggplant is a plus.

Responsibilities

  • Execute and develop detailed test plans and procedures based on requirements.
  • Track and document defects until resolution is achieved.
  • Conduct manual and automated testing for software performance.
  • Communicate with customers to validate and clarify requirements.
  • Collaborate with engineers to ensure all requirements are met.
  • Participate in design reviews and provide feedback on methodology.
  • Analyze test results to identify issues and track root causes.

Benefits

  • Health and disability insurance coverage.
  • 401(k) plan with company matching.
  • Flexible spending accounts for medical expenses.
  • Employee Assistance Program (EAP) available.
  • Education assistance for further career development.
  • Parental leave and paid time off provided.
  • Company-paid holidays throughout the year.
Full Job Description
Job Title: Senior Associate, Integration and Test Engineer

Job Code: 44876

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 2 years of prior relevant experience. Graduate Degree or equivalent with 0 to 2 years of prior related experience. In lieu of a degree, minimum of 6 years of prior related experience.
  • U.S. DoW Secret security clearance.


Preferred Additional Skills:

  • 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 $67,000 - $124,000. 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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