Senior Systems Integration & Test Engineer – Mission Systems

** Federal Project - Applicant must be a United States Citizen ** Location: Richardson, TX or Aurora, CO Description This role focuses on the integration, verification, and validation of complex software-intensive systems across lab and field environments. The position supports Agile development teams by designing, executing, and automating tests that ensure system functionality, performance, and mission readiness. Responsibilities Perform systems integration, verification, and validation (IV&V) activities for complex, software-driven systems Plan, execute, and document integration and test events in laboratory and operational environments Develop and maintain automated test scripts to support regression, functional, and system-level testing Support CI/CD pipelines , integrating automated testing into build and deployment workflows Debug and troubleshoot software-based systems , working closely with developers and systems engineers Execute testing activities on Linux platforms , including Red Hat–based environments Collaborate with Agile teams to support iterative development, rapid feedback, and continuous improvement Track test execution, defects, and requirements coverage using standard program tools Requirements Proven experience in systems integration and test (SI&T) for complex technical systems Hands-on experience supporting CI/CD environments Experience creating and maintaining automated test scripts Strong background working in Linux environments , specifically Red Hat Proficiency in Python and/or Perl Demonstrated ability to debug and analyze software-centric system issues Preferred / Domain Experience Experience supporting satellite ground systems Familiarity with ground stations , telemetry , or mission operations environments Experience with test automation frameworks and tools such as Cucumber , Gherkin , SoapUI , or Zephyr Working knowledge of Jira and Confluence for defect tracking and documentation Programming experience with Java, C++, and/or Python Exposure to AWS or cloud-adjacent environments Security & Certifications Active TS/SCI clearance (polygraph obtainable after start) Security+ certification preferred