Systems Administrator
VTG Defense
Overview We are 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
$92.3k - $166.85k
Are you ready to be the technical backbone of a mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting-edge Agile software development program, Chinook, for an Intelligence Community customer. In this...SuggestedFull timeContract workShift workDay shiftAfternoon shift$90.3k - $189.6k
Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity CACI...SuggestedFull timeContract workWork experience placementLocal areaFlexible hours- ...Job Title: System Administrator Department: Operations – Services Reports To: RavenTek Program Manager Location: Chantilly, VA Schedule: Monday – Friday Hours: Full-time, 40-hours/week FLSA Status: Hourly, Nonexempt Clearance: TS/SCI CI Poly Position Summary The System...SuggestedHourly payFull timeContract workWork experience placementWork at officeMonday to Friday
$103.8k - $218.1k
...Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 25% Type of Travel: Continental US What You’ll Get to Do: CACI...SuggestedFull timeContract workWork experience placementFlexible hours- ...Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both...SuggestedRemote work
- ...Fulcrum Vets is looking to add a Senior Systems Administrator with expertise in supporting Windows Server Active Directory environments to join our team. This position will play a key role in the management, optimization, securing, and troubleshooting of environments,...Full timeWork experience placementFlexible hours
- ...About the Role Redhorse transforms the way government uses data and technology to support its mission. We are seeking an elite System Administrator to serve as the technical authority for the design, development, and deployment of a mission‑critical web‑based internal...Contract work
- ...Overview Job Title: Senior Systems Administrator Department: IT / Engineering Reports To: RSekure Program Manager Location: Chantilly, VA Schedule: Monday – Friday Hours: Full-time, 40-hours/week Clearance Req: TS/SCI – Full-Scope Polygraph Summary RSekure is seeking a...Full timeFor contractorsWork experience placementWork at officeLocal areaMonday to Friday
- ...At NS2 Mission, reliable infrastructure is the foundation of mission success. We're seeking a Systems Administrator to join our team in Chantilly, VA , where you'll be responsible for managing, maintaining, and optimizing enterprise server environments that support Intelligence...Local areaRemote workFlexible hours
- ...ACTIVE TS/SCI WITH FULL SCOPE POLY REQUIRED*** Job Description The Systems Engineer (Storage) evaluates, implements and maintains Storage Area Networks (SANs) and storage systems across enterprise platforms. Responsibilities include the evaluation, design, implementation...
$7.5k
...Job Brief System Administration; Help Desk Job Description 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...Work experience placementImmediate startFlexible hours- ...Employment Type: Full Time Department: Legal/IT We are seeking a Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization’s network systems. CGS brings motivated, highly skilled, and creative people...Full timeWork at officeFlexible hours
- ...Location: Chantilly, Virginia Type: Contract Job #3365 Senior Systems Administrator Chantilly, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice...Contract workRemote work
- ...System Administrator LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a proactive and detail-oriented System Administrator to join our team and help maintain...Temporary workFor contractorsImmediate startFlexible hours
- ...We are seeking a highly skilled Systems Administrator to support mission-critical systems in a secure environment. The ideal candidate has strong experience with cloud infrastructure, automation, CI/CD, and Linux administration, and thrives in a fast-paced, collaborative...
- ...Senior Systems Administrator Employment Type: Full Time, Senior-level CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative...Full timeContract workFor contractorsWork at officeFlexible hours
- ...requirements and track completion through the automated tracking system. Create user accounts. Manage network email services.... ...the NRO enterprise (COMM). Qualifications 5 years of system administration experience or related technical IT experience. Experience with...Work at office
$112.45k - $203.28k
Description Leidos is seeking a System Administrator for a technical development program supporting the Sponsor’s Attribute Services within the IDAM/ICAM space. As a System Administrator on this program, you will design, develop, implement, and maintain a Cloud-Native...- MANTECH seeks a motivated, mission-oriented Senior Systems Administrator to join our team in Chantilly, VA. As a Senior Systems Administrator you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as well...
$130k
...Employee and Family and 401k up to 8% match and more. Location: Chantilly, VA DESCRIPTION Our client has an opening for a System Administrator to support the National Security Sector, to provide technical expertise and to operate and maintain the IT environment. RESPONSIBILITIES...- Employment Type Full Time, Senior-level Department Legal/IT Overview CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people...Full timeContract workFor contractorsWork at office
- ...Overview Senior Discovery IT System Administrator — Employment Type: Full-Time, Executive-Level. Department: Legal. CGS is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist with any legal accounts. As a Senior...Full timeFor contractorsFlexible hours
$7.5k
...Job Brief System Administration; Help Desk Job Description 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. They...Work experience placementImmediate startFlexible hours- ...MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA. As a Linux Systems Administrator, you will help maintain and enhance the Sponsor’s Linux environment alongside a talented team. You will be responsible...Work at office
- A Government entity is hiring for a LINUX Administrator Responsibilities include: Administration of AWS/Azure and database migration activities... ...and resolves issues and maintain web application hosting systems, reliability and uptime of production applications Support system...
$150k - $170k
...of build-out, maintenance, and configuration of virtualized systems. Deployment of updates, IAVA patches, and Anti-Virus updates.... ...level 2 or higher). Amazon Web Services (AWS) (C2S) systems administration. Linux operating systems (e.g. Red Hat, Centos, Ubuntu, Fedora...Contract work$160k
...Type Full-time Description POSITION: Linux System Engineer WORK LOCATION: Chantilly, VA JOB CATEGORY:... ...discipline plus 4-6 years of professional experience as a Systems Administrator or similar technical role. Proactive self-starter...Full timeTemporary workWork experience placementFlexible hours- ...feedback loops to the development team. Review user metrics, system health, and overall performance; implement proactive measures... ...plus 4-6 years of professional experience as a Systems Administrator or similar technical role. Active Top Secret security clearance...Contract workTemporary work
$90.3k - $189.6k
Job Title: Database Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI... ...Administrator supporting critical Corporate Business Information Systems. In this role, you’ll work hands‑on with a broad range of...Full timeContract workWork experience placementImmediate startFlexible hours- Responsibilities Support the National Programs Intelligence Systems & Application Operating Unit. Install, configure, and... ...with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX...
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