principal windows systems administrator Jobs

141 - 160 of 1,772 Jobs

Systems AdministratorJob Title - Systems Administrator

SAICCompany Name - SAIC

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Andover, Massachusetts, USA

Full-time

Job ID: 2507140 Location: ANDOVER, MA, US Date Posted: 2025-06-30 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC currently has a career opportunity for a Cyber Systems Administrator (SA) in our Andover, Massachusetts facility to support the US Space Force (USSF). Job Duties: Manage and maintain cur

Network/Systems Administrator IIIJob Title - Network/Systems Administrator III

General DynamicsCompany Name - General Dynamics

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Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Computer Backups, Computer Networking, Local Area Network (LAN) Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Network/System Administrator with GDIT. A caree

Systems Administrator 1Job Title - Systems Administrator 1

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

We're searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us! Job Description: Provides support for implementation, troubleshooting and maintenance of lnformation Technology (IT) systems. Manages IT s

IT Systems Administrator, LaunchJob Title - IT Systems Administrator, Launch

SpaceXCompany Name - SpaceX

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Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR, LAUNCH SpaceX is looking for a highly skilled and knowledgeable IT Systems Administrator to support the networking, compute administration, and application support needs of our launch environ

Systems Administrator SeniorJob Title - Systems Administrator Senior

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Independence, Kansas, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, VMware Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Please take this opportunity to join one of GDIT's fastest long-standing growing program

Systems Administrator / ISSOJob Title - Systems Administrator / ISSO

LeidosCompany Name - Leidos

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Oakland, South Carolina, USA

Full-time

Leidos' National Security Sector is seeking a Systems Administrator / Information Systems Security Officer (ISSO) to support US Army Central G2 at Shaw Air Force Base, SC. This role is part of the Sentinel G2 Army MI Enterprise, providing IT repair, maintenance, operations, logistics, and engineering services to ensure the secure and uninterrupted availability of Army Military Intelligence Enterprise IT Systems. The ideal candidate will be responsible for both systems administration and cybersec

Systems Administrator 2Job Title - Systems Administrator 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

VMware Systems AdministratorJob Title - VMware Systems Administrator

SAICCompany Name - SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506948 Location: WASHINGTON, DC, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: Yes, 25 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: No Description SAIC is hiring a VMware Systems Administrator to support HHS On-Site in Washington, DC. The VMware Systems Administrator will provide ongoing support to Executives

Linux Systems Administrator, Sr / Onsite: Huntsville, ALJob Title - Linux Systems Administrator, Sr / Onsite: Huntsville, AL

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Huntsville, Alabama, USA

Full-time

Job Description Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers' toughest challenges. Headquartered in Bethesda, Maryland, US, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries. Lockheed Martin Enterprise Operations (EO) is actively see

Senior Systems Administrator, Classified ITJob Title - Senior Systems Administrator, Classified IT

Aduril IndustriesCompany Name - Aduril Industries

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Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Linux Systems AdministratorJob Title - Linux Systems Administrator

General DynamicsCompany Name - General Dynamics

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Huntsville, Alabama, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Active Directory (AD), Apache HTTP Server, Linux, Linux Command, Ubuntu Linux Server Certifications: None Experience: 3 + years of related experience ship Required: No Job Description: Primary Responsibilities: Daily security related administration of approximately 200 Linux

Systems Administrator SeniorJob Title - Systems Administrator Senior

General DynamicsCompany Name - General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, VMware Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Please take this opportunity to join one of GDIT's fastest long-standing growing program

Enterprise Senior Systems AdministratorJob Title - Enterprise Senior Systems Administrator

General DynamicsCompany Name - General Dynamics

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Albuquerque, New Mexico, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Critical Systems, Enterprise Servers, Operating Systems (OS) Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: GDIT seeks a highly motivated and experienced Enterprise Senior Systems Engineer to support the Defense Th

Systems Administrator 3Job Title - Systems Administrator 3

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

Are you ready to KANGAROO into action at RealmOne! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join us on this journey as w

Systems Administrator/IntegratorJob Title - Systems Administrator/Integrator

Kratos Defense and Security Solutions, Inc.Company Name - Kratos Defense and Security Solutions, Inc.

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Colorado Springs, Colorado, USA

Full-time

Job Description Ready for What's Next? Kratos is a leader in assured aerospace communication solutions and services. We are cutting-edge innovators and creative problem solvers working collaboratively to solve our customers' toughest challenges. Our culture is fast-paced and innovative. We are a trusted partner-driven by doing the right thing and achieving maximum success for our customers, our partners and ourselves. Kratos is offering an exciting opportunity for a CCS-C Systems Administrato

NCIS Cyber Systems Administrator - SecOps | Active TS/SCI clearanceJob Title - NCIS Cyber Systems Administrator - SecOps | Active TS/SCI clearance

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Quantico, Virginia, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: DISA STIG, IT Security Operations, Security Content Automation Protocol (SCAP), System Administration Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Cyber Sys

Systems AdministratorJob Title - Systems Administrator

Apex SystemsCompany Name - Apex Systems

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El Segundo, California, USA

Full-time

Job#: 2037008 Job Description: Apex Systems is seeking a Systems Administrator to design, install, operate, secure and maintain dedicated Program Information Technology Infrastructure. The environment consists of multiple sites and networks with servers and High Performance Computing Clusters running Red Hat Linux in multiple locations around the U.S. and growing. Future expansion will include WNDRVR VxWorks embedded Linux operation systems. Linux and Windows servers host engineering application

Advanced Systems Administration Specialist & DevOps AdministratorJob Title - Advanced Systems Administration Specialist & DevOps Administrator

General DynamicsCompany Name - General Dynamics

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Scottsdale, Arizona, USA

Full-time

Basic Qualifications Education Requirements: Bachelor's degree in Computer Science, a related field or equivalent experience is required plus a minimum of 5 years of relevant experience; or Master's degree plus 3 years of relevant experience. Clearance Requirements: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified informatio

Senior Principal Systems Engineer Cyber Engineer (SPY6 Family of Radars) (On-site Marlborough, MA) - P5Job Title - Senior Principal Systems Engineer Cyber Engineer (SPY6 Family of Radars) (On-site Marlborough, MA) - P5

RTX CorporationCompany Name - RTX Corporation

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Marlborough, Massachusetts, USA

Full-time

Date Posted: 2025-06-17 Country: United States of America Location: MA801: Marlborough, MA 1001 Boston Post Road Building 2, Marlborough, MA, 01752 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation a

Senior Linux Systems Administrator - 10k Sign on BonusJob Title - Senior Linux Systems Administrator - 10k Sign on Bonus

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immed