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 VTG Defense
$130k - $175k
...the organization, leveraging staff and institutional resources in service to our country. About You You are a Senior‑Level Systems Administrator with experience designing, implementing, securing, and supporting enterprise IT infrastructure in commercial, government, and...SuggestedFor contractors- ...Advance your career while impacting our national security in cyber as Systems Administrator at GDIT. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government. The Advanateam is seeking a Systems...SuggestedWork at office
$95k - $125k
IT Systems Administrator - Falls Church, VA Reports to the regional IT Manager and provides day‑to‑day administrative support for the IT department. Selected candidates will maintain Top Secret clearance with SCI access, including a CI Polygraph, and support classified...SuggestedWork at officeLocal area- About System High System High Corporation delivers advanced protection and secrecy solutions to secure and strengthen critical missions... ...matters most. Position Overview We are seeking an IT Systems Administrator to support the operation, maintenance, and security of...Suggested
- Integrated Computer Solutions, Inc. is seeking a Senior System Administrator in Arlington, Virginia. This position involves providing Tier I/II/III support within classified environments, ensuring operational performance and security of critical systems. The ideal candidate...Suggested
- ...Required Skills/Education: SolarWinds, Remedy, Windows or Linux Administration Enterprise Monitoring handles Windows Servers 2022 and Linux... ...taking care of our SolarWinds servers. We keep the monitoring system running so we can see what’s going on across the network, what...Long term contract
- Overview Freedom Technology Solutions Group is looking for a Linux System Administrator (SA) to join our team at a customer site in McLean, VA to support a mission‑critical geospatial data visualization application. The Linux SA will be responsible for the day‑to‑day operation...Work at officeFlexible hoursNight shift
- The HPC group is looking for an experienced Linux systems administrator with HPC experience and programming skills, to join our team. The HPC team is responsible for purchasing, deploying, and maintaining HPC hardware and user tools for over 450 MITRE employees. The HPC...Work experience placement
- ...services and solutions in National Security Programs, Professional, Administrative, and Management Support, and Mission and Warfighter Support.... ...experienced in government contracting. Position Title: System Administrator Location: Arlington, VA Security Clearance: Secret...Full timeFor contractors
$85k - $95k
Innovative, Secure, and Outcome-Based Solutions Job Summary: A Systems Administrator job in Arlington, VA (22204)is currently available through Belcan at one of our key federal governmentclients. The Systems Administrator handles Tier 1 and Tier 2 level support tickets...For contractorsLocal areaImmediate start- Overview Join to apply for the Systems Administrator role at Level Up, LLC (Washington, D.C.) 3 months ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. About Level Up Level Up, LLC, a wholly-owned subsidiary of AVIAN, represents...Full timeFlexible hours
- Systems Administrator (NAUT) Bowhead seeks a Systems Administrator to support our customer on the Nautical contract in the Arlington, VA area. The successful candidate will be responsible for the administration, maintenance, and optimization of cloud infrastructure supporting...Contract work
- Booz Allen Hamilton is seeking a BigFix and System Administrator to design and implement a new BigFix environment across internal labs. You will onboard environments, patch, remediate vulnerabilities, and establish secure baselines while maintaining functionality. The...
- Senior Systems Administrator - Arlington, VA Chenega Military, Intelligence & Operations Support (MIOS) is seeking a Senior Systems Administrator to manage and enhance enterprise Windows and Linux server environments, ensure system security and performance, and support...
$65k - $85k
We are seeking a skilled and self-driven Systems Administrator with strong expertise in cloud services, Microsoft enterprise technologies, virtualization, and modern security platforms. The ideal candidate will have hands‑on experience with AWS, Microsoft 365/Intune, VMware...Full timeTemporary workFlexible hours- ...organization, delivers innovative solutions for complex, mission‑critical federal programs. We are seeking multiple highly skilled Systems Administrators to deliver critical on‑site functional and technical infrastructure support at multiple locations, including Northern...Contract workWork at officeLocal area
$115k - $140k
...application due to a disability, contact this employer to ask for an accommodation or an alternative application process. System Administrator Full Time Professional Hybrid - Arlington, VA, Arlington, VA, US 18 days ago Requisition ID: 1190 Other Considerations: U....Permanent employmentFull timeContract workTemporary workRemote workMonday to FridayFlexible hours- ...on this job and more exclusive features. Arthur Grand Technologies is currently seeking a highly motivated and skilled AXON System Administrator for one of our clients. Position: AXON System Administrator Location: Arlington, VA - Hybrid Long Term Contract Position...Long term contractFor contractorsWork at officeImmediate start
- The Position The Senior System Administrator provides Tier I/II/III systems administration and IT operations support within classified environments. This role delivers subject matter expertise supporting enterprise systems and infrastructure, ensuring availability, security...RelocationDay shift
- Job Description ACTIVE TS/SCI WITH FULL SCOPE POLY REQUIRED*** Our client has an immediate need for a System Administrator with a focus on Linux experience in the McLean, VA area. The on‑site system administrator shall support the day‑to‑day operations of the Sponsor’...Local areaImmediate startRemote work
- Systems Administrator (5832) Location: Arlington, VA Job Code: 5832 # of Openings: 1 Apply Now: Old Harbor Solutions , a subsidiary of Three Saints Bay, LLC, and a Federal Government contractor industry leader, is seeking a System Administrator to join our team in...For contractorsWork at officeLocal area
- Overview 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...Full timeWork at officeFlexible hours
- Sprezzatura is seeking a System Administrator to provide operational support for IT systems across VA programs. The role includes managing servers and ensuring cybersecurity compliance. The candidate should have a Bachelor's degree and 5+ years of experience in system...
- ...telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, we deliver resilient,... ..., and cybersecurity industries. Position SaaS System Administrator (System Administrator 1) to join our Security and Electronic...Work at officeLocal area
$101.34k - $150k
Amentum is seeking a Senior Systems Administrator in McLean, VA. In this role, you will manage and maintain Microsoft Exchange systems while ensuring compliance with security protocols. Ideal candidates will have a Bachelor’s degree and at least six years of relevant experience...$101.34k - $150k
Senior Systems Administrator Amentum is looking for a Senior Systems Administrator to join our team in McLean, VA ! As the Senior Systems Administrator , you will monitor and maintain corporate communication systems related to email and messaging; troubleshoot hardware,...Hourly payContract workWork at officeLocal area- ...August 2025 Application Deadline: 29 August 2025 Department: Systems Engineering Location: Headquarters Description Aireon deployed... ...the Aireon Network Engineering Group, the Senior Systems Administrator is responsible for helping to set up, maintain and manage Aireon...Permanent employmentFull timeTemporary workFor subcontractorWork at officeRemote workFlexible hours
- Join to apply for the Senior Systems Administrator role at Tecolote Research Overview We are seeking a skilled and motivated Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and optimizing our enterprise systems...Full timeTemporary workWork at office
- Systems Administrator Location: Arlington, VA Chenega Military, Intelligence & Operations Support (MIOS) invites qualified professionals to join our team as a Systems Administrator. This role supports large‑scale government operations by leveraging cutting‑edge technology...
$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
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