Senior System Administrator
GIGATEC Engineering
Perks and Benefits 100% Paid Healthcare 10% 401k in every paycheck 100% Fully Vested!!! NOTE – Our positions require Top Secret clearance , as well as the favorable completion of a polygraph . Applicants must be authorized to work in the U.S. We are unable to sponsor an employment Visa. What You’ll Be Doing As the System Administrator, you'll get to be responsible for providing network management and systems administration support to maintain the Agency’s High‑Performance Computing (HPC) infrastructure and HPC development environment. The Systems Administrator shall require SYS1 access and must have the Security+ certification. Requirements Fifteen (15) years' experience Bachelors in Technical discipline, or an additional 5 years' experience Required Skills Experience using the Linux CLI and Linux Tools Experience developing scripts using Bash/Python Experience performing system administration including installation, configuration, and support of COTS/GOTS/FOSS software in a large-scale Linux cluster environment Experience with Network Appliance clustered servers and applicable software with direct attached FC SAN storage Experience using Red Hat Satellite to automate the deployment, provisioning, and patching of RHEL Linux systems across physical, virtual, and cloud environments Experience with hands‑on troubleshooting, customer interfacing, issue resolution, discrepancy tracking, and report generation Familiar with software frameworks used for searching, monitoring, and analyzing big data such as Splunk and Elastic Stack Experience with Linux configuration regarding storage, networking, load balancing, memory management, VMs, firewalls, and system monitoring Experience with corporate STE/STN security compliance policies, procedures, and tools Experience with corporate SSP accreditation processes Experience with IaC (Infrastructure as Code) principles and automation tools such as Ansible and SaltStack Experience configuring and sustaining VMware ESXi/Virtualization environments Desired Skills Experience with the Atlassian Suite of Tools such as Jira and Confluence Experience using system monitoring tools such as HPE One View and Nagios Experience with containerization technologies such as Docker Experience with sanitization of hardware, firmware, and / or software removed from computing environment in accordance with USG policies and procedures Experience with NetBackup and/or tape backup systems and archiving Experience with ePolicy Orchestrator and McAfee #J-18808-Ljbffr GIGATEC Engineering
- ...Independent Software, Inc. in Fort Meade, Maryland, is looking for a System Administrator Level 4 to support mission-critical IT systems. You will manage both Linux and Windows operating systems, lead troubleshooting efforts, and ensure system stability in a highly secure...Senior
- ...Be a member of a system administration team responsible for the design, deployment, installation, configuration and maintenance of Linux/UNIX-based server systems and software. Be able to learn quickly and work independently as well as collaborate with team and project...Senior
$123k - $146k
...Senior System Administrator for Advanced Security Operations Capabilities Join our team as a senior System Administrator responsible for sustaining and evolving a high-performance operational IT environment in support of advanced security operations. This role requires...SeniorRelocation- ...Responsibilities Provides advanced systems administration, infrastructure management, cybersecurity compliance, and enterprise modernization support Administer Windows Server, Linux systems, and enterprise infrastructure Manage VMware virtualization and enterprise storage...Senior
- ...Clearance: Active TS/SCI w/Full Scope Polygraph Job Description We are seeking a highly skilled Senior Systems Administrator to join our team in Annapolis Junction, MD. The ideal candidate will have extensive experience in managing and maintaining complex systems and...Senior
$100k - $115k
...technical planning, testing, and execution of complex system upgrades, including operating systems,... ...advisories) and ensure timely remediation. Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching...Senior$135k - $216k
...Responsibilities We are seeking a Senior System Administrator to provide enterprise-focused engineering support to a Government Customer. You will provide system administration solutions to meet required capabilities, and you will create bills of materials, network designs...SeniorContract workShift work- ...is proud to offer career growth opportunities and a competitive compensation and benefits package. Visit our website at: Senior System Administrator Candidate must have an active TS/SCI w/Poly The Senior System Administrator will maintain data files and control...SeniorFlexible 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...SeniorFull timeContract workFor contractorsWork at office
- ...We are seeking an experienced Senior Systems Administrator to support the lifecycle sustainment and modernization of mission-critical education, learning, and training applications supporting a Government enterprise. This role is ideal for an experienced systems administrator...SeniorFull time
$229.5k - $310.5k
...Job Title Systems Administrator SME Responsibilities Provide support for implementation, troubleshooting, and maintenance of IT systems. Manage daily configuration and operation activities of IT systems. Identify, diagnose, and resolve system problems. Assist users in...Senior- ...Senior System Administrator for a funded role with quantifiable Linux system administration work experience to support a mission‑focused team. Position requires an active TS/SCI with Polygraph level clearance. US citizenship is required. Required Skills Linux Vmware Harvester...SeniorTemporary workWork experience placementLocal areaImmediate start
$77.6k - $176k
...Job Number: R0232223 System Administrator, Senior The Opportunity Your technical expertise makes the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We're looking for a System...SeniorLocal area$190k - $240k
...Responsibilities Perform IAVA patching and reporting across enterprise systems. Maintain and administer Windows Server (various versions)... ...(GPOs) and perform PowerShell scripting for automation and administrative tasks. Utilize AWS services, including EC2, Lambda functions,...Senior$115k - $175k
...agility of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer-oriented Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is an onsite position. Primary Responsibilities Provides support...SeniorHourly payContract workWork experience placement$103.8k - $218.1k
...Senior System Administrator Join CACI as a key contributor on the MWIII Bridge program, where mission meets innovation. As a Prime Contractor, CACI delivers next‑generation Identity, Credential, and Access Management (ICAM) capabilities across the Intelligence Community...SeniorContract workFor contractorsWork experience placementFlexible hours$164k - $200k
...Belay Technologies is seeking a Senior System Administrator to join our intel team. Join a team providing Life Cycle Sustainment (LCS) and modernization activities for commercial and custom-developed education, learning, and training applications supporting the Government...Senior- ...Worker Type: Regular Job Description Summary The System Administrator III is a senior technical contributor responsible for designing, implementing, securing, and maintaining the organization’s core IT infrastructure. This role provides Tier 3 support for complex incidents...SeniorPermanent employmentContract workWork experience placement
$190k - $210k
...Title: Senior System Administrator Location: Annapolis Junction, MD Compensation Range: $190 - $210K Clearance: Active TS/SCI w/ Polygraph needed to apply. Company Overview Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities...Senior- ...Innovative Systems & Solutions | Full time - Onsite Senior System Administrator - FFPP-8804 Annapolis Junction, United States | Posted on 03/17/2026 Innovative Systems & Solutions (ISS) works with a wide spectrum of talent to establish an atmosphere that stimulates creativity...SeniorFull timeTemporary workLocal areaImmediate start
$164k - $200k
...Belay Technologies is seeking a Senior System Administrator to join our intel team. You will support CNO Capabilities as a senior System Administrator and technical contributor responsible for sustaining and evolving a high-performance operational IT environment. This...SeniorContract workWork at officeRelocation- ...Analytica is seeking a seasoned and adaptable Senior System Administrator to join our infrastructure team in supporting an innovative federal mission. In this role, you will provide high-level technical leadership, engineering expertise, and strategic vision to optimize...SeniorFor contractorsLocal area
- ...Overview Employment Type: Full Time Department: Legal/IT We are seeking a Senior 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...SeniorFull timeWork at officeFlexible hours
- ...The US Social Security Administration is seeking an IT Specialist to oversee the installation, monitoring, and troubleshooting of systems across the agency. You will serve as a technical authority and provide critical IT support in a national capacity. Applicants must...Senior
$10k
...technology allowances, and access to a state-of-the-art technology lab. Learn more at Your Mission ClearEdge is hiring a Senior System Administrator to support the administration, sustainment, and security of Linux-based systems across mission environments. In this role...Senior- Ariadne is looking for Senior System Administrator for a position at NLM's Lister Hill National Center for Biomedical Communications, part of the National Institutes of Health at the NIH campus in Bethesda, MD. Duties And Responsibilities The management, maintenance and...Senior
- ...McLean, VA . We currently have an immediate opening for a Sr. Systems Administrator to support our contract in Lanham, MD. Our government... ...requirement to provide support in Infrastructure Management for a Senior System Administrator, with strong Microsoft Hyper‑V...SeniorContract workWork at officeImmediate startRemote workMonday to Friday
$150k - $175k
Senior System Administrator Location: Ft. Meade, MD Description Assured Information Security (AIS) has an opening for a Senior System Administrator. This is an onsite position located at Ft. Meade and requires a TS/SCI w/FS Poly. This position is responsible for supporting...Senior$120.8k - $265.8k
Join to apply for the Senior Systems Administrator role at CACI International Inc 2 days ago Be among the first 25 applicants Join to apply for the Senior Systems Administrator role at CACI International Inc Get AI-powered advice on this job and more exclusive features...SeniorFull timeContract workWork experience placementLocal areaImmediate startFlexible hours$77.6k - $176k
...another. What if you could use those skills to improve the technology supporting the Department of Defense? We’re looking for a System Administrator to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment that supports critical...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work
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