Systems Administrator
VTG Defense
Overview VTG is seeking a skilled Systems Administrator to manage, maintain, and support enterprise IT infrastructure. This role is responsible for ensuring the reliability, security, and performance of servers, networks, and systems while supporting day-to-day operations and long-term IT initiatives. What will you do? Install, configure, and maintain servers, operating systems, and enterprise applications Monitor system performance, availability, and security across environments Manage user accounts, permissions, and access controls (Active Directory, IAM) Perform system patching, updates, and vulnerability remediation Troubleshoot hardware, software, and network issues across infrastructure Support backup, disaster recovery, and business continuity processes Maintain system documentation, configurations, and standard operating procedures Collaborate with network engineers, security teams, and developers to support infrastructure needs Automate routine tasks using scripting (PowerShell, Bash, Python) Ensure systems comply with security policies and regulatory requirements Do you have what it takes? Active TS/SCI with Polygraph required. Bachelor's degree in Information Technology, Computer Science, or related field (or equivalent experience) 5+ years of experience in systems administration or IT operations Strong experience with Windows and/or Linux server environments Experience with Active Directory, DNS, DHCP, and Group Policy Familiarity with virtualization technologies (VMware, Hyper‑V) Knowledge of networking fundamentals (TCP/IP, firewalls, VPNs) Experience with system monitoring tools and log management Proficiency in scripting or automation (PowerShell, Bash, Python) #J-18808-Ljbffr
$103.8k - $218.1k
Job Title: Classified Systems Administrator and ISSOJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * *The OpportunityCACI...SuggestedContract workWork experience placementFlexible hours$73.45k - $132.78k
Leidos has an opening for a Systems Administrator in Reston Virginia. Responsibilities include installation, configuration, administration, support and maintenance of systems, including associated hardware. Responsibilities may include management of systems infrastructures...SuggestedFull timeWork experience placement$105.1k - $231.1k
Job Title: Infrastructure/Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to... ...Opportunity:Join our dynamic team as an Infrastructure/Systems Administrator and play a crucial role in maintaining and enhancing our IT...SuggestedContract workWork experience placementFlexible hours- Company DescriptionArtech Information Systems is the #12 Largest IT Staffing Company in the U.S. and an employer of choice for over 7,000 consultants. We recruit world-class talent for IT, engineering, and other professional jobs at 70+ Fortune and Global 500 companies...SuggestedFull time
$112k - $179k
ResponsibilitiesJob Summary:We are seeking a highly skilled and experienced System Administrator to join our team. This position will require the candidate to work closely with government customers, contractor Project Lead, Information Systems Security Officer (ISSO),...SuggestedContract workFor contractorsShift work- ...effective installation and performance of advanced operating system hardware and software on servers. • Install new software releases... ...projects • Thorough knowledge of good server and system administration principles Additional InformationAll your information will be...Work experience placement
$86.6k - $181.8k
Job Title: DevSecOps Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start... ...maintaining a critical DoD system? Join our team as a Systems Administrator! You will get to use your technical skills to implement and...Contract workWork experience placementFlexible hours$146k - $194k
...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...Full timeWork experience placementImmediate start$102.85k - $139.15k
Systems Administrator (Experienced or Senior)Company:The Boeing CompanyBoeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS), seeks a System Administrator (Experienced or Senior) (Shift Work) to join our Mission Operations team in Herndon, VA....Permanent employmentFull timeVisa sponsorshipWork visaRelocation packageFlexible hoursShift workNight shift- ...BRPosted: 2026-07-06Location: Herndon, VirginiaClearance: TS/SCI w/Poly SPCompany: Lockheed MartinDescription:• Provide Domain/Systems Administrator Engineer of the Mission LAN, and oversee the maintenance, optimal function, and patching of the LAN’s operating system, and...Full timeFor contractorsWork at officeRemote workMonday to FridayFlexible hours
$122k - $253k
...provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet... ...**This position is CONTINGENT upon contract award**The System Administrator (SysA) as part of the Platform Team delivers technical...Full timeContract work$85k - $95k
...Macdill AFB, Florida, United States Position Title: Systems Administrator Iron Bow Technologies is for people who believe trust is paramount, transformation is embraced, and the future is here, because "What we do matters"! We are a next generation solutions provider,...Contract workShift work$86k - $114k
...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is... .... ABOUT THE JOB Anduril is seeking a Junior Systems Administrator to directly support our most sensitive programs. You will be a...Full timeWork experience placement$92k - $185k
...Security Clearance Active TS/SCI with FS Polygraph required Position Apogee's ideal Systems Administrator will provide support for a comprehensive suite of applications. The necessary support & services include systems administration & Tier 2 help desk support in a 24/...Temporary workFlexible hoursShift work- ...extensive experience and effective approach, ensuring that we lead with both innovation and integrity. The Position Senior System Administrator provides Tier I/II/III systems administration and IT operations support within classified environments. This role delivers subject...RelocationDay shift
$145k - $165k
...Overview Systems Administrator Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because...- ...Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Job Title: Systems Administrator II Location: Reston, VA Job Location: Assist in server operations, resolving customer issues for Unix/Linux based...
$82.55k - $110.05k
...Excellence * Leadership * Transparency * Member-Driven we need you on our team! We are seeking a reliable and detail-oriented Systems Administrator to oversee, maintain, and secure our core IT infrastructure. In this role, you will manage both on-premises and Cloud...Local areaFlexible hours- ...We are seeking a skilled and detail-oriented Systems Administrator to support and maintain enterprise Windows and Linux server environments in a fast-paced, mission-focused organization. This role is responsible for building, configuring, securing, and monitoring systems...Contract work
- ...POSITION OVERVIEW The Senior Systems Administrator ensures the stable operation of Customer's computer software systems and network connections in support of the DoD. This role is responsible for planning, installing, configuring, maintaining, and optimizing network software...Contract workLocal areaRemote work
$70k - $95k
...the cost of IT ownership. We provide executive-level, white-glove support. Opening Solvere One is seeking highly qualified System Administrator candidates to provide support to clients. The duties of this role include ensuring clients meet Solvere One technical best practices...Full timeLocal area- ...provides technically advanced full-spectrum cyber, data operations, systems integration, and intelligence mission support services to meet... ..., defense, civil, and commercial markets. Job Title: System Administrator Location: Sterling, VA Clearance: TS/SCI Poly This position is...Contract work
- ...Abile Group has an exciting and challenging opportunity for a Systems Administrator on a 10 year contract providing User Facing and Data Center Services supporting an Intelligence Community customer. All the personnel on the team will work together to support innovative...Contract workFor contractorsLocal areaWorldwide
- ...Responsibilities Support the National Programs Intelligence Systems & Application Operating Unit. Install, configure, and maintain... ...degree with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX...
$80.1k - $152k
...information on remote work at Penn State, see Notice to Out of State Applicants. POSITION SPECIFICSWe are searching for a Systems Administrator to join the Reston, VA location of the Digital Engineering Department in the Cyber, Modeling, and Simulation Division of the...Full timeFor contractorsWork experience placementWork at officeImmediate startRemote work$112k - $149k
...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is... ....WHAT YOU'LL DO:The Anduril Intelligence Systems System Administrator ensures the smooth functioning of the core underpinnings of the...Full timeWork experience placementImmediate start$135k - $216k
ResponsibilitiesWe are seeking a Senior Cloud Systems Administrator in Herndon, VA to support the SITE III DO contract within our National Programs Business Intelligence Systems & Applications Operating Unit. This role supports mission-critical applications and services...Full timeContract workFlexible hoursShift work$146k - $194k
...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is... ....ABOUT THE JOB We're seeking a skilled Classified Systems Administrator with expertise in Linux and Microsoft environments to provide...Full timeWork experience placementImmediate start$77k - $163k
...provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet... ...commercial markets.We are seeking a highly skilled Systems Administrator to support mission-critical systems in a secure environment....Full time$112k - $179k
ResponsibilitiesCurrently seeking a Cyber Systems Administrator to support an Intel Community (IC) customer in the Herndon, Virginia area.The Systems Administrator provides mid-level operational support for enterprise information systems within classified environments....Contract workShift work
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