System Administrator (Linux/Windows) - HPC, TS/SCI Poly
$145k - $190kAkina
A Veteran Owned Service Business located in Annapolis, Maryland, is seeking a System Administrator. This role involves managing IT systems, troubleshooting issues, and providing Tier 1 and 2 technical support. Candidates should have a B.S. degree and 10 years of relevant experience, including expertise in Linux, Unix, and Windows. A valid TS/SCI with FSP clearance and DoD 8570 IAT II certification are required. A competitive salary range of $145k-$190k annually is offered, along with generous benefits including 24 days PTO and full healthcare coverage. #J-18808-Ljbffr
- ...SageCor Solutions is seeking a qualified candidate with Active TS/SCI clearance in College Park, Maryland. The position involves configuring and managing Linux and Windows systems, administering HPC systems, and providing IT support. Proficiency in scripting (C and Python...WindowsLinux
$79.3k - $184.8k
...AT&T in Columbia, Maryland, seeks a High-Performance Computing (HPC) Systems Administrator to manage Linux and Windows platforms. The role requires TS/SCI clearance and offers a competitive salary range of $79,300 - $184,800 annually based on experience and education....WindowsLinux$185k - $215k
...Systems Administrator White Sky Technologies specializes in systems engineering... ...IAT Level 3 ~ Active TS/SCI w/ poly clearance Skills... ...audits and plugins files. Linux- Moderate systems administration... ...and connect nodes Windows 10/11, Server 2026/2019/202...WindowsLinuxLocal area- ...CyberTrend IT Systems Administrator CyberTrend's leadership has 40 years of experience... ...personnel. Requires TS/SCI with Poly Clearance Skills: Linux Cisco Network Configurations... ...Configures and manages UNIX and Windows operating systems and installs/...WindowsLinuxFull timeFor contractorsLocal area
$89.2k - $150.86k
...performance computing (HPC), automated processing systems, distributed software design... ...consists of primarily Linux, with some Windows, and UNIX. The... ...Computing (HPC) Systems Administrator to support a large client... ...solution). Required Clearance TS/SCI with polygraph. (#ts/...WindowsLinuxContract workTemporary workWork at officeLocal areaRelocation$1,500 - $3,000 per month
...flexibility. Tulzi offers secure network systems and software engineering... .... Clearance Required: TS/SCI with poly Title: System Administrator III Location: Annapolis... ...process. Configures and manages Linux, Unix, and Windows operating systems and installs/...WindowsLinuxHourly payTemporary workLocal area- ...Amentum is seeking a System Administrator 2 to provide Tier 1 (Help Desk) and Tier 2 (Escalation... ...tools Basic understanding of Window desktop tools and Linux command line functions... ...end user Clearance Required: TS/SCI Poly Minimum Education: Bachelor...WindowsLinuxHourly payContract workLocal area
$25k
SYSTEM ADMINISTRATOR -Linux/MongoDB/AWS- 10 yrs of Experience - TS/SCI w/Poly clearance is required Job Description System Administrator -Linux/MongoDB/AWS - 10 yrs of Experience... ...process. Configures and manages UNIX and Windows operating systems and installs/loads operating...WindowsLinuxContract workTemporary workRemote workShift work$150k - $160k
Job Overview Amentum is seeking a System Administrator 2 to provide Tier 1 (Help Desk) and... ...PKI tools Basic understanding of Windows desktop tools and Linux command line functions Reviewing and... ...Clearance Required: TS/SCI Poly Minimum Education: Bachelor’s degree...WindowsLinux$1,500 - $3,000 per month
...flexibility. We offer secure network systems and software engineering solutions in... ...Position Details Clearance Required: TS/SCI with poly Title: Lustre Engineer- Software Integration... ...system environment including Linux and Windows. Candidates will work with cluster computing...WindowsLinuxHourly payFull timeTemporary workLocal area$145k - $190k
...technology services firm located in Maryland is seeking a skilled System Administrator to manage and support IT systems. This position requires... .... The ideal candidate will have a strong understanding of Linux, Windows, and Unix systems, and excellent troubleshooting skills....WindowsLinux$25k
...Job Description Job Description System Administrator/System Engineer - Linux/AWS - 5+ years of Experience - TS/SCI w/Poly clearance is required Halogen Engineering... ...suite (Jira, etc.) ~ Ability to work in both Windows and Linux environments a strong plus. ~...WindowsLinuxContract workTemporary workRemote workWorldwideFlexible hoursShift work$145k - $190k
...A Veteran Owned Small Business in Annapolis is seeking a System Administrator to provide Infrastructure Server and Sustainment services. This role requires managing IT systems, providing support for implementation, and troubleshooting issues across various operating systems...WindowsLinux$145k - $190k
...A Veteran Owned Small Business is seeking an experienced System Administrator to provide support for infrastructure and sustainment services across multiple locations. Candidates should have a B.S. in a technical discipline or equivalent experience, strong IT troubleshooting...WindowsLinux- ...Columbia, Maryland, is seeking a highly qualified Systems Administrator with a Bachelor’s degree and ten years of... ...assurance, and hands-on experience with LINUX, UNIX, and Windows operating systems. Additionally, an active TS/SCI w/ Polygraph is required. This role offers...WindowsLinux
- ...is seeking a passionate and skilled Linux Systems Administrator to provide system management, daily... ...of HPE’s computing solution. TS/SCI with Full Scope Poly clearance required. US citizenship... ...equivalent work experience. 3+ years of HPC‑related experience, ideally with...LinuxFull timeWork experience placement
- ...Enterprise Infrastructure Support Senior Systems Administrator (SA) in Laurel, MD. This full-time... ...Community, requiring an active TS/SCI clearance with polygraph. The ideal... ...various operating systems, including Linux, Unix, and Windows. Benefits include heavy subsidization...WindowsLinuxFull time
$77.6k - $176k
Booz Allen Hamilton is seeking a Senior System Administrator to support a high-performance... ...and designing IT resources, managing Linux and Windows environments, and optimizing system operations... .... Essential qualifications include a TS/SCI clearance and significant experience...WindowsLinux$25k
SOFTWARE ENGINEER - HPC/Linux - 5+ yrs of Experience - TS/SCI w/Poly clearance is required - ID Posted On 05/15/2026 Job Information Technology Work Experience... ...will be responsible for developing and maintaining system management infrastructure software and services for...LinuxContract workTemporary workWork experience placementRemote workShift work- System Administrator Level 2 Location: On‑site Clearance: Active TS/SCI with Polygraph Experience Required: 10+ years (or 5 additional years in lieu of degree) We... ..., and comfortable working across both Windows and Linux platforms in a fast‑paced, mission‑focused environment...WindowsLinux
- Virtualization Systems Administrator Your impact: Own your opportunity to support national defense... ...and supporting infrastructure across Windows and Linux platforms Monitor health,... ...Security+ CE, etc.) Clearance: Active TS/SCI clearance with a favorable polygraph...WindowsLinux
$87.1k - $157.45k
...a new and exciting opportunity for a System Administrator in our Intel Sector's Cyber & Analytics... ...Switches, Routers, LANs, & cabling, Windows/Linux operating systems, VMware, etc.).... ...month. ~ Clearance Required: Must have TS/SCI with Polygraph. Preferred Qualifications...WindowsLinuxWork at officeLocal areaImmediate startRemote workFlexible hours$25k
...Job Description Job Description System Administrator - Enterprise Infrastructure - 5+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering is looking... .... Configuring and managing Linux, Unix, and Windows operating systems and installing/loading...WindowsLinuxContract workTemporary workRemote workShift work$87.1k - $157.45k
Job Summary Leidos is looking for a System Administrator to support our Intellectual Sector’s Cyber... ...switches, routers, LANs, cabling, Windows/Linux, VMware). Knowledge of data center design... ...once per month. Clearance required: TS/SCI with Polygraph. Preferred...WindowsLinuxWork at officeImmediate startFlexible hours$96.57k - $130.65k
...to Obtain: Top Secret SCI + Polygraph Public... ...Skills: Critical Systems,Enterprise IT,Enterprise Monitoring,System Administration,System Monitors Experience... ...CLEARANCE: Active TS/SCI clearance with a... ...Working knowledge of Windows and Linux systems administration...WindowsLinuxTemporary workImmediate startWorldwideFlexible hours$96.57k - $130.65k
...Possess: Top Secret SCI + Polygraph... ...Skills: Critical Systems, Enterprise IT, Enterprise... ...Enterprise Monitoring, System Administration, System Monitors... ...CLEARANCE: Active TS/SCI clearance with a favorable... ...Working knowledge of Windows and Linux systems administration...WindowsLinuxTemporary workImmediate startRemote workWorldwideFlexible hours- ...Power3 Solutions is seeking a Systems Administrator to join their rapidly growing team in Fort Meade, Maryland. In... ...degree with at least 10 years of experience in Linux and Windows operating systems, and possess a TS/SCI Poly security clearance. The role offers...WindowsLinux
- ...contractor in Fort Meade seeks an experienced Windows Systems Administrator to maintain a secure, optimized... ...and configuring Windows and Linux servers, managing security measures,... ...Server and Active Directory, plus a TS/SCI clearance. Fantastic benefits include...WindowsLinuxFor contractors
- ...defense contracting company in Maryland is seeking a System Administrator II to manage and support IT systems. Candidates... ...10 years of experience, proficiency in both Linux and Windows systems, and an Active Top Secret SCI with Fullscope Polygraph. This role involves troubleshooting...WindowsLinuxFlexible hours
$120.8k - $265.8k
A technology services provider is seeking a Senior Systems Administrator in Maryland. This role requires expertise in Linux and Windows systems administration along with TS/SCI clearance. Responsibilities include managing IT infrastructure, troubleshooting issues, and optimizing...WindowsLinux
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