System Administrator
Vosper Thornycroft Group
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 managementProficiency in scripting or automation (PowerShell, Bash, Python) #J-18808-Ljbffr
- ...requirements and track completion through the automated tracking system. Create user accounts. Manage network email services. Perform... ...the NRO enterprise (COMM). Qualifications 5 years of system administration experience or related technical IT experience. Experience with...SuggestedWork at office
- ...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...SuggestedContract work
$86.6k - $181.8k
## Systems AdministratorChantilly, VA, USApply NowFind out how well you match with this jobJob ID327118Job Title: Systems AdministratorJob... ...Travel Required: NoneType of Travel: None\* \* \*The Systems Administrator that has IT Service Management (ITSM) platform administration...SuggestedContract workWork experience placementFlexible hoursShift work- ...General Dynamics - IT in Alice Springs, Australia, seeks a Senior Systems Administrator to oversee and secure the organization's IT infrastructure. You will manage servers, AD, backups, patches, and security, with a focus on high availability and reliability. The role...Suggested
- ...Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With... ...: Objective. Responsive. Trusted. SPA is hiring an IT Systems Administrator to support a multi-vendor infrastructure with a focus on Linux...SuggestedWork at officeImmediate startRemote work
- ...Senior Systems Administrator II Employment Type: Full Time, Senior-level Department: Legal/IT Responsibilities This individual will manage the archiving of Relativity databases, developing, managing and documenting a workflow process to identify, archive, and delete materials...Full timeContract workFor contractorsWork at officeFlexible hours
- ...As a Senior Systems Administrator at GCI, you will support medium-sized business networks and small program networks with multiple users across several domains. Your role involves responsive and active management of all system administrator duties related to servers and...Shift work
- ...RavenTek Business Group is hiring a System Administrator in Chantilly, VA. The role supports enterprise IT operations by maintaining and securing systems. Responsibilities include server administration, monitoring cloud environments, and providing technical support. Candidates...Full time
- ...ability to identify, address, and act - no matter what challenges arise. Evans & Chambers Technology seeks a highly qualified Systems Administrator to join a mission-focused team that maintains applications, services, microservices, Platform as a Service (PaaS), and...Work experience placementLocal area
- ...We are Seeking a Senior Systems Administrator with a minimum of 11 years' experience. Undergraduate or graduate degree in computer science or computer engineering. Specific skills may include the following: Required Skillsets: 11+ years' experience in systems design and...
- ...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
- ...Position Overview 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‑...Full time
- ...Title Systems Administrator - Expert ID 10000237 Department Information Technology Evans & Chambers partners with the US national defense community to create fully integrated, resilient, and innovative digital solutions that enable them to make smart decisions in real-...
- ...A leading technology solutions provider in Chantilly, Virginia seeks an experienced System Administrator to ensure the design and deployment of mission-critical applications in a classified AWS environment. The role demands strong expertise in system administration, cybersecurity...
$116.35k - $210.33k
...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...$55k - $75k
We are seeking a motivated Systems Administrator to support and maintain our enterprise IT environment. This role is ideal for someone with solid foundational experience in Microsoft services, endpoint management, and hardware administration who is ready to broaden their...Full timeTemporary workFlexible hours- ...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
$86.6k - $181.8k
...DevOps 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 Opportunity CACI is seeking a DevOps...Full timeContract workLocal area$130k
...the 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....- ...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...
- ...MANTECH seeks a motivated, mission-oriented Intermediate Systems Administrator to join our team in Chantilly, VA. As the Systems Administrator, you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities...
$55k - $75k
We are seeking a motivated Systems Administrator to support and maintain our enterprise IT environment. This role is ideal for someone with solid foundational experience in Microsoft services, endpoint management, and hardware administration who is ready to broaden their...Full timeTemporary workFlexible hours- ...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
$60k - $180k
...Cloud Migration, Applications and Infrastructure, Software Development, and Finance & Accounting. M9 Solutions is seeking a System Administrator to work onsite in support of a government contract for a client located in Chantilly, VA . An active TS/SCI clearance...Full timeContract workFor subcontractorFlexible hoursNight shift- ...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
- ...Senior Systems Administrator II Employment Type: Full Time, Senior-level - Department: Legal/IT Overview CGS is seeking a Senior Systems Administrator to support technical initiatives for a large Federal agency, ensuring systems meet client needs and comply with policy...Full timeContract workFlexible hours
- 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, ensuring...Full timeWork experience placementFlexible hours
$92.3k - $166.85k
Description 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...Contract workShift workDay shiftAfternoon shift- ...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 Discovery...Full timeFlexible hours
- ...Senior Discovery IT System Administrator Employment Type: Full-Time, Executive-Level 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 Discovery IT System...Full timeFor contractorsFlexible hours
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