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Sr. Principal Windows Systems Administrator

Requisition ID: R10064070

  • Category IconCategory: Information Technology
  • Location IconLocation: Linthicum, MD, USA
  • Citizenship IconCitizenship Required: United States Citizenship
  • Clearance IconClearance Type: Top Secret
  • Telecommute IconTelecommute: No- Teleworking not available for this position
  • Shift IconShift: 1st Shift (United States of America)
  • Travel IconTravel Required: Yes, 10% of the Time
  • Positions IconPositions Available: 1

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 Global Operations Security is seeking a well-qualified Lead Windows Administrator to join its dynamic team of technical professionals in the Linthicum, MD area.  Roles and responsibilities will include but not be limited to the following:

  • Perform as primary Lead Windows Systems Administrator for a large, classified government contract(s).

  • Maintain efficient operations of the entire IT infrastructure including severs, desktop, and networking equipment. 

  • Communicate effectively with all stakeholders in written and verbal formats. 

  • Ensure necessary IT projects are completed independently or assigned to others as necessary.

  • Obtain and analyze internal and external customer requirements and recommend equipment and software as needed. 

  • Implement system enhancements that will improve the performance, reliability, and security of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.

  • Manage backup infrastructure then provide backup and recovery services.

  • Manage virus protection on a routine basis as directed by policy.

  • Maintain security audit and logging information on all classified networked and standalone computers as directed by the Cyber Security team.

  • Create and maintain user and computer accounts and modify file permissions as directed by policy.

  • Develop and maintain technical processes and procedures as needed.

Basic Qualifications:

  • Associate’s degree with 11 years of experience, or a Bachelor’s degree with 9 years of experience, or a Master’s degree with 7 years of experience, or a PhD with 4 years of experience; a High School diploma or equivalent with 13 years of experience may be considered in lieu of a completed degree.

  • Experience operating under and managing systems within current applicable information systems compliance standards.

Technical Abilities

Experience maintaining Classified Windows Domains in effective operations to include advanced knowledge of the following:

  • Active Directory (AD) deployment, maintenance and support.

  • Group Policy (GPO).

  • DNS.

  • DHCP and scopes.

  • Windows Server Update Servers (WSUS), SCCM, or similar update service.

  • Certificate Authority (CA) server.

  • Supporting license managers.

  • Supporting golden image creation, deployment, and underlying infrastructure.

  • Experience deploying vulnerability scanning tools and remediation.

Clearance and Access

  • Currently active DoD Top Secret security clearance.

  • The ability to obtain and maintain a Special Access Program (SAP/SAR) clearance within a reasonable period of time as determined by the company, and also by customer and/or program requirements; maintaining a SAP/SAR clearance will be a condition of continued employment.

Non-Technical Abilities and Certifications

  • Currently valid Security+ CE, CASP, CISSP, or similar DoD 8570 security certification; certification must be maintained as a condition of continued employment.

  • Experience leading a technical team of IT professionals.

  • Experience mentoring junior level IT professionals.

  • Experience giving technical presentation to technical and non-technical attendees.

  • Experience providing surge support to other programs as needed.

  • Active vendor-based IT certification.

  • Ability to travel as needed.

  • Ability to lift equipment weighing up to 40 pounds.

  • Ability to work after hours and weekends as needed.

Preferred Qualifications:

  • Experience with VMWare implementation, migration, and maintenance.

  • Experience with NetApp and/or Nutanix implementation, migration, and maintenance.

  • Experience with system design and architecture.

  • Experience with communicating with executive leadership.


Salary Range: $109,100 USD - $163,700 USD

Employees may be eligible for a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.

The health and safety of our employees and their families is a top priority. The company encourages employees to remain up-to-date on their COVID-19 vaccinations. U.S. Northrop Grumman employees may be required, in the future, to be vaccinated or have an approved disability/medical or religious accommodation, pursuant to future court decisions and/or government action on the currently stayed federal contractor vaccine mandate under Executive Order 14042 https://www.saferfederalworkforce.gov/contractors/.

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO/AA and Pay Transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.



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What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work.
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like work-life balance, education assistance and paid time off.


Did you know?

Northrop Grumman leads the industry team for NASA’s James Webb Space Telescope, the largest, most complex and powerful space telescope ever built. Launched in December 2021, the telescope incorporates innovative design, advanced technology, and groundbreaking engineering, and will fundamentally alter our understanding of the universe.