Sr Principal Cyber Systems Engineer-AHT

About this role

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: 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 Defense 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 Defense 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.

Responsibilities:

• Lead Windows domain infrastructure design, implementation, and administration for classified environments • Manage VMware vSphere clusters, ESXi hosts, and Horizon VDI pools including upgrades, patching, and lifecycle management • Design and implement Group Policy Objects (GPOs) to enforce security controls and standardize configurations • Administer Active Directory services including DNS, DHCP, user/group management, and domain controller operations • Create, optimize, and maintain Windows and Linux virtual machine gold images for enterprise deployment • Develop and execute automation scripts (PowerShell, Bash, Python) to streamline administrative tasks and reduce human error • Apply DISA STIGs and CIS hardening guidelines to Windows Server, Linux, and virtualized infrastructure • Manage enterprise storage solutions (NetApp, SAN) integrated with virtualization platforms • Coordinate patch management cycles across Windows and Linux systems following established security protocols • Provide 24/7 on-call support for critical infrastructure and participate in incident response activities • Document system architectures, procedures, and configuration standards for enterprise environments • Interface with program leadership, architects, and stakeholders to align infrastructure with mission requirements •

Basic Qualifications for a Senior Principal Cyber Systems Engineer:

• Bachelor's degree in Computer Science, Information Systems, Cybersecurity, Engineering, or related STEM field plus 8 years of relevant experience; OR Master's degree plus 6 years of relevant experience; OR Associate's degree plus 12 years of relevant experience; OR 15+ years of equivalent hands-on technical experience in lieu of degree • 5+ years of hands-on Windows Server and Active Directory administration including DNS, GPO, domain controller management, and troubleshooting in enterprise environments • 3+ years of VMware vSphere and/or Horizon administration including ESXi host management, vCenter operations, VM lifecycle, and VDI pool management • Experience with Linux/UNIX system administration (RHEL, CentOS, or simil

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