Sr. Specialist, Integration & Test Engineer

L3Harris • Rockwall, TX

8h • Onsite

About The Position

L3Harris is seeking a mid-level Integration and Test Engineer to perform software systems integration and system test functions for the MOSSAIC Command and Control (C2) Space Domain Awareness (SDA) mission. The role involves Systems Engineering Integration & Test (SEIT) activities, including requirements development and derivation, test documentation, test execution, system troubleshooting, and defect tracking and resolution.

The engineer will develop and execute manual and automated tests, collaborate with systems and software engineering teams, contribute to design reviews, analyze test results, and help maintain technical documentation, including SysML-based system models. The position also supports cloud environment operations using Docker, Kubernetes, and Helm-based deployments.

The position is located in Rockwall, Texas, and follows a 9/80 schedule: employees work nine out of every 14 days for a total of 80 hours, with every other Friday off.

Requirements

• Bachelor’s degree and at least 6 years of relevant experience; or a graduate degree and at least 4 years of related experience; or, in lieu of a degree, at least 10 years of related experience.
• Ability to obtain TS/SCI access within 6 months of hire.

Nice To Haves

• Active U.S. Department of War TS/SCI security clearance.
• Active Security+ CE certification.
• Basic knowledge of the Space Domain Awareness enterprise and engineering efforts.
• Familiarity with MBSE/Eggplant and similar testing tools, as well as Department of War testing requirements.
• Familiarity with Jira/Confluence or equivalent tools.
• Experience with Scaled Agile Framework and DevSecOps methodology.
• Experience testing Java and C++ application software.
• Proficiency in Linux.
• Proficiency in test automation software.
• Proficiency in Python programming.

Responsibilities

• Execute and assist in developing detailed test plans, procedures, and cases based on system requirements.
• Identify, thoroughly document, and track defects through resolution.
• Perform manual and automated testing to verify software performance and functionality.
• Collaborate with systems engineers, software engineers, and senior Integration and Test Engineers to identify system requirements for validation and verification.
• 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 with development and test teams.
• Assist in creating and maintaining technical documentation, including SysML-based system models.
• Support cloud environment operations using Docker containers, Kubernetes orchestration, and Helm chart-based deployments.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level