Principal Windows Systems Administrator Jobs in Virginia

61 - 80 of 450 Jobs

Network Engineer / Systems Administrator (SA)Job Title - Network Engineer / Systems Administrator (SA)

Cymertek CorporationCompany Name - Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Network Engineer / Systems Administrator (SA)Job Title - Network Engineer / Systems Administrator (SA)

Cymertek CorporationCompany Name - Cymertek Corporation

•

Reston, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Network Engineer / Systems Administrator (SA)Job Title - Network Engineer / Systems Administrator (SA)

Cymertek CorporationCompany Name - Cymertek Corporation

•

Chantilly, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, se

Systems Administrator- TS/SCI with PolygraphJob Title - Systems Administrator- TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT), Linux, System Administration Certifications: Security+ CE - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a Syste

Systems AdministratorJob Title - Systems Administrator

MSITEK LLCCompany Name - MSITEK LLC

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Herndon, Virginia, USA

Contract

- 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position - 4+ years with PowerShell scripting for automation, extremely fluent in PowerShell and command lines - Experience with Windows firewalls - Expert level Microsoft Azure Administrator - Expert level Windows admin skills (Active Directory, DNS, Group Policy) - Security Clearance or ability to get a Clearance Nice to Have Skills and Experience -Bachelors in Computer Science - Professional industry certifications

Systems AdministratorJob Title - Systems Administrator

Hexaware Technologies, IncCompany Name - Hexaware Technologies, Inc

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Reston, Virginia, USA

Full-time

Job Responsibilities: Support Capital Markets trading desk operations and live trading activities.Act as the primary operations contact; manage workflows and ensure compliance.Implement and monitor operational risk controls to adhere to internal policies and regulatory requirements.Collaborate with trading, compliance, legal, and middle/back-office teams for seamless trade execution.Partner with technology and project teams to drive process improvements, system upgrades, and automation initiativ

IT Analyst / Systems AdministratorJob Title - IT Analyst / Systems Administrator

Modern Technology SolutionsCompany Name - Modern Technology Solutions

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Fort Belvoir, Virginia, USA

Full-time

Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a IT Analyst/Systems Administrator in Ft. Belvoir, Va. Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the

Senior Systems AdministratorJob Title - Senior Systems Administrator

Modern Technology SolutionsCompany Name - Modern Technology Solutions

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Alexandria, Virginia, USA

Full-time

Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Systems Administrator in Alexandria, VA. Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the indu

IT Engineer - Microsoft Enterprise Systems Administrator Advisor, TS/SCI with PolygraphJob Title - IT Engineer - Microsoft Enterprise Systems Administrator Advisor, TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: DNS, Dynamic Host Configuration Protocol (DHCP), Microsoft (MS) Active Directory (AD), Windows 10 Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: General Dynamics Information Tec

Information Systems AdministratorJob Title - Information Systems Administrator

NightwingCompany Name - Nightwing

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Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Senior EPM Systems AdministratorJob Title - Senior EPM Systems Administrator

SAICCompany Name - SAIC

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Reston, Virginia, USA

Full-time

Job ID: 2502921 Location: RESTON, VA, US Date Posted: 2025-03-06 Category: Information Technology Subcategory: Bus Solutions Eng Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: None Potential for Remote Work: Yes Description SAIC seeks an EPM Systems Administrator to support our team in Reston, VA. This position will be remote. As a member of the EPM Team, they will contribute to the overall effectiveness and effic

Systems Administrator IIJob Title - Systems Administrator II

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Plano, Texas, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Systems Administrator II, you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system para

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

General DynamicsCompany Name - General Dynamics

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Quantico, Virginia, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret 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: CompTIA Security+ CE Certification - CompTIA Experience: 5 + years of related experience ship Required: Yes Job Description: Transform techno

Systems Administrator 2Job Title - Systems Administrator 2

NightwingCompany Name - Nightwing

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Remote or Annapolis, Maryland, USA

Full-time

Systems Administrator 3Job Title - Systems Administrator 3

NightwingCompany Name - Nightwing

•

Remote or Annapolis, Maryland, USA

Full-time

Systems Administrator - TS/SCIJob Title - Systems Administrator - TS/SCI

General DynamicsCompany Name - General Dynamics

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Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: System Administration, Technical Support, Troubleshooting Certifications: Security+, CE - CompTIA-Security+ CE Experience: 1 + years of related experience ship Required: Yes Job Description: Manages the functionality and efficiency

Systems Administrator StaffJob Title - Systems Administrator Staff

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Manassas, Virginia, USA

Full-time

Job Description WHAT WE'RE DOING At Lockheed Martin Rotary and Mission Systems, we are inspired by innovation and integrity. We believe that by applying the highest standards of business ethics and creative thinking, everything is within our reach - and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. Come and experience your future! WHO WE ARE Our systems administration teams play a vital role in ensuring that Lockheed Martin's vast IT infrastru

Systems Administrator Senior (VMware) - TS/SCI requiredJob Title - Systems Administrator Senior (VMware) - TS/SCI required

General DynamicsCompany Name - General Dynamics

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Fort Belvoir, Virginia, 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 + Polygraph Public Trust/Other Required: None Job Family: Telecommunications Job Qualifications: Skills: Computer Servers, Virtual Servers, VMware Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Systems Administrator Senior (VMware) - TS/SCI required Transform technology into opportunity as a Syst

Senior Systems Administrator - TS/SCI with PolygraphJob Title - Senior Systems Administrator - TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Active Directory (AD), Incident Resolution, System Administration Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is seeking an IT E

Systems Administrator, Intelligence SystemsJob Title - Systems Administrator, Intelligence Systems

Aduril IndustriesCompany Name - Aduril Industries

•

Reston, Virginia, 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