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Systems Administrator Jobs in Frederick MD

Jobs found: 457
2 days ago 161. Senior IT System Admin Certified Professional

IT/Tech (Systems Administrator, IT Support, Cybersecurity, Network Security)

Position: Senior IT System Admin Certified Professional (Multiple) - Role: Senior IT System Admin Certified Professional - Location:...

Senior IT System Admin Certified Professional Job

Listing for: Bravura, Inc.
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2 days ago 162. System Administrator II - TS/SCI w/poly clearance

IT/Tech (Systems Administrator, IT Support, Unix/Linux, Network Administrator)

System Administrator II - TS/SCI w/poly clearance - Annapolis Junction, MD - Description Cyber Trend’s leadership has 40 years of...

System Administrator II - TS/SCI w/poly clearance Job

Listing for: CyberTrend Engineering LLC
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2 days ago 163. Systems Engineers FS Poly

IT/Tech (Systems Engineer, Systems Administrator, Cybersecurity, Network Security)

Position: Options for Systems Engineers, all levels - FS Poly - Options for Systems Engineers, all levels - FS Poly - Annapolis...

Systems Engineers FS Poly Job

Listing for: stanleyreid
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2 days ago 164. Systems Administrator - Windows & UNIX Mission Operations

IT/Tech (Systems Administrator, Unix/Linux, Windows Server)

Position: Systems Administrator 2 - Windows & UNIX Mission Operations - Systems Administrator 2 - Windows & UNIX Mission...

Systems Administrator - Windows & UNIX Mission Operations Job

Listing for: Navius Technologies LLC
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2 days ago 165. Senior IT Infrastructure Specialist - Windows/Linux, TS/SCI

IT/Tech (Systems Administrator, IT Infrastructure)

Clear Edge is seeking an IT Infrastructure Specialist to manage and optimize a mixed Windows/Linux environment across data centers. You...

Senior IT Infrastructure Specialist - Windows/Linux, TS/SCI Job

Listing for: ClearEdge
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2 days ago 166. Senior Microsoft Intune & Endpoint Modernization Engineer

IT/Tech (Systems Engineer, M365, SharePoint & Power Platform, Systems Administrator, Cybersecurity)

We are seeking a senior - level Microsoft Intune Engineer to lead endpoint modernization initiatives, including a full migration from...

Senior Microsoft Intune & Endpoint Modernization Engineer Job

Listing for: Compunnel Inc.
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2 days ago 167. Cloud Systems Admin II: Big-Data Cloud & Linux Ops

IT/Tech (Cloud Computing: Infrastructure & Operations, Unix/Linux, Systems Administrator, AWS)

Wyetech, LLC is hiring a Cloud Systems Administrator Level 2 in Annapolis Junction, MD to support mission - critical, cloud - based...

Cloud Systems Admin II: Big-Data Cloud & Linux Ops Job

Listing for: Wyetech, LLC
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2 days ago 168. Solaris & Linux System Administrator

IT/Tech (Systems Administrator, Disaster Recovery IT, Unix/Linux)

Annapolis Junction, United States | Posted on 10/08/2026 - CDIT Solutions IS seeking a skilled and detail - oriented Solaris & Linux...

Solaris & Linux System Administrator Job

Listing for: CDIT
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2 days ago 169. Senior Systems Administrator

IT/Tech (Unix/Linux, Cybersecurity, Systems Administrator, Systems Engineer)

Description - You will work on a 7–9 - person mixed Contractor/Civilian SA team supporting 3rd party systems. - All supported systems are...

Senior Systems Administrator Job

Listing for: Fuse Engineering
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2 days ago 170. Systems Administrator/Principal Systems Administrator; 2nd Shift

IT/Tech (Systems Administrator, IT Support, Cybersecurity)

Position: Systems Administrator/Principal Systems Administrator (2nd Shift) - RELOCATION ASSISTANCE: - Relocation assistance may be...

Systems Administrator/Principal Systems Administrator; 2nd Shift Job

Listing for: Northrop Grumman
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Jobs found: 457