Sr Principal Cyber Systems Engineer-AHT

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Northrop Grumman Mission Systems delivers mission-critical solutions for global security. Our Engineering and Sciences organization advances engineering and scientific capabilities to design, produce, and sustain optimized product lines that give the warfighter a decisive edge. We seek bold, innovative engineers who embrace change, value cognitive diversity, and bring their full selves to work. Our employees don't just witness history—they make it. Northrop Grumman Mission Systems is hiring a Senior Principal Cyber Systems Engineer in Huntsville, AL to support the Advanced Technology Center's critical Windows domain infrastructure and virtualized enterprise environments in a fast-paced, classified environment. What You'll Get to Do: The new team member will design, implement, and secure enterprise Windows domain infrastructure, virtualization platforms, and cyber defense systems that support classified national defense programs. Lead the administration and strategic enhancement of Windows Server environments including Active Directory, DNS, Group Policy, and domain services across multiple security classification levels. Architect, deploy, and maintain VMware vSphere and Horizon VDI environments to support mission-critical operations and secure remote access solutions. Apply cybersecurity frameworks and compliance standards (DISA STIG, CIS Benchmarks) to harden systems and maintain security posture across classified networks. Provide technical leadership and mentorship to systems administration teams, driving best practices in virtualization, automation, and infrastructure lifecycle management. Collaborate with cross-functional teams including network engineers, software developers, and cybersecurity professionals to deliver integrated infrastructure solutions. Support high-visibility demonstrations and mission-critical operations through infrastructure readiness, troubleshooting, and rapid problem resolution. Ensure operational excellence through proactive monitoring, patch management, and continuous improvement of enterprise systems.

Lead Windows domain infrastructure design, implementation, and administration for classified environments Manage VMware vSphere clusters, ESXi