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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Principal System Engineer - Integration & Test (AHT) - **Company:** Northrop Grumman - **Location:** Redondo Beach, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Network Interface, System Testing, Systems Integration, Test Data, Enterprise Integration - **Published:** August 9, 2026 - **Apply:** https://us.experteer.com/career/view-jobs/sr-principal-system-engineer-integration-and-test-aht-redondo-beach-ca-usa-58871156 ## About the Role complex perform root-cause analysis, and drive issue resolution with cross-functional teams * Provide inputs to RFCs and configuration/change artifacts based on test findings * Author and maintain Ground Element documentation (e.g., Network Interface Planning Documents, System Test Plans) * Support hardware, software, and network integration, including configuration, checkout, and troubleshooting of interfaces * Collaborate with software, network, and systems engineering teams to ensure testability and verification of requirements * Participate in site installation, integration, and verification activities with travel as needed * Adhere to test processes and CM/quality standards while pursuing continuous test improvements Tasks * Bachelor's degree in STEM with 8+ years of experience, or Master's with 6+ years, or PhD with 4+ years * Active SCI clearance at time of application * Willingness to travel up to 25% of the time * 3+ years experience in test procedure development, planning, or aaa network, and test * Strong written and oral communication skills Key requirements * Medical, Dental & Vision coverage * 401k * Educational Assistance * Life Insurance * Employee Assistance Programs & Work/Life Solutions * Paid Time Off ## Description Experteer Overview In this role you will lead system-level integration and test activities for the Ground Element in factory and site environments. You will support DT&E testing, develop test procedures, and present results at TRRs/TRBs, shaping how complex space-ground interfaces perform. You'll collaborate with software, network, and systems teams to ensure verification of requirements and drive continuous test improvements. This is a chance to contribute to cutting-edge space systems and travel to operational locations as needed. Compensation / Benefits * Develop, update, and execute system-level integration and test procedures for Ground Element in factory and site environments * Plan and conduct dry-runs and run-for-record test executions, coordinating resources and data collection * Prepare and present material for Test Readiness Reviews and Test Review Boards including objectives, configurations, results, and discrepancies * Analyze test data to verify requirements, identify anomalies, perform root-cause analysis, and drive issue resolution with cross-functional teams * Provide inputs to RFCs and configuration/change artifacts based on test findings * Author and maintain Ground Element documentation (e.g., Network Interface Planning Documents, System Test Plans) * Support hardware, software, and network integration, including configuration, checkout, and troubleshooting of interfaces * Collaborate with software, network, and systems engineering teams to ensure testability and verification of requirements * Participate in site installation, integration, and verification activities with travel as needed * Adhere to test processes and CM/quality standards while pursuing continuous test improvements Tasks * Bachelor's degree in STEM with 8+ years of experience, or Master's with 6+ years, or PhD with 4+ years * Active SCI clearance at time of application * Willingness to travel up to 25% of the time * 3+ years experience in test procedure development, planning, or integration and test * Strong written and oral communication skills Key requirements * Medical, Dental & Vision coverage * 401k * Educational Assistance * Life Insurance * Employee Assistance Programs & Work/Life Solutions * Paid Time Off ## Related Videos - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [How To Test A Ball of Mud](https://www.wearedevelopers.com/videos/173-how-to-test-a-ball-of-mud) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) ## Related Articles - [Integration And E2E Testing: Are They Complementary or Interchangeable?](https://www.wearedevelopers.com/magazine/86-integration-and-e2e-testing-are-they-complementary-or-interchangeable) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [What is a Test Plan: Guide to Test Planning](https://www.wearedevelopers.com/magazine/191-what-is-a-test-plan-guide-to-test-planning) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [Top 6 Hackathons for Developers in 2023](https://www.wearedevelopers.com/magazine/263-top-6-hackathons-for-developers-in-2023) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)