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Principal Windows Systems Administrator Security Clearance

Job in Sunnyvale, Santa Clara County, California, 94085, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2026-02-12
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, IT Support, Network Security
Job Description & How to Apply Below
Position: Principal Windows Systems Administrator with Security Clearance
RELOCATION ASSISTANCE:
Relocation assistance may be available 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.

At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We're looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours of expanding your personal network and developing skills, whether you are new to the field or an industry thought leader.

At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career. Northrop Grumman is seeking a Windows Systems Administrator to join our team in Sunnyvale, CA; please note that the candidate selected for this opening will be required to work on-site, full-time, at our Sunnyvale campus.

- this is not a remote work opportunity. Job responsibilities will include but not be limited to the following:
* Maintain smooth operation of multiple Windows based networks and multi-user computer systems, including coordination with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.

* Provide regular monitoring and security analysis to meet DoD security standards.

* Analyze internal and external customer requirements and determine equipment and software requirements for solutions to problems by means of automated systems.

* Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.

* Provide backup and recovery services, manage file systems and disk space, and manage virus protection on a routine basis.

* Create and maintain user and computer accounts and modify file permissions and security access list.

* Test new releases of products to ensure compatibility and minimize user impact.

* Develop and document technical processes and procedures as needed.

* Make recommendations to purchase hardware, software, and system components

* Interact, meet, discuss, and troubleshoot issues with vendors, and evaluate vendor products, services, and suggestions.

* Adhere to strict Information Systems security guidelines in all cases.

* Prepare security documentation for input to Computer Security.

* Report project status as required for all recurring and non-recurring efforts.

* Provide specifications and detailed schematics for network architecture as needed.

Basic Qualifications:

* Associate's degree with 7 years of relevant experience, or a Bachelor's degree with 5 years of relevant experience, or a Master's degree with 3 years of relevant experience; a High School diploma or equivalent with 9 years of relevant experience may be considered in lieu of a completed degree.

* Applicants must have a current DoD Secret level security clearance (at a minimum), to include a closed investigation date completed within the last 6 years, or must be enrolled in the DoD Continuous Evaluation Program (CEP), in order to be considered; the required security clearance must be maintained as a condition of continued employment.

* Current Security+ CE certification; the required certification must be maintained as a condition of continued employment.

* Windows experience to include proficiency with Windows OS and Active Directory concepts (including DHCP and DNS).

* Experience with server management.

* Experience installing, configuring, and maintaining computer hardware in a networked environment.

* Ability to work after hours and weekends as needed.

Preferred Qualifications:

* Active DoD Top Secret security clearance.

* Hardware experience with HPE and Dell Servers, to include firmware patching, hardware upgrades, lights out management experience, troubleshooting, and visualization.

* Experience with Certification & Accreditation process.

* Basic understanding of Linux OS functionality, commands, and file structures and/or…
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