System Administrator Jobs in Herndon
41 live System Administrator roles in Herndon, United States. Apply directly on Haystack.
Last updated 17 August 2026. Job counts refresh daily.
As of 17 August 2026, Haystack lists 41 live System Administrator jobs in Herndon, with 18 added in the past week and typical advertised salaries of $142k to $178k. Employers hiring right now include Peraton, Cornerstone Defense and General Dynamics.
Top companies hiring
plus 18 more companies hiring in this category
- New
Jr. Systems Administrator
Newgen Software Technologies
Herndon, VA🇺🇸3 hours agoActive DirectoryComplianceTechnologyNS - New
Systems Administrator
Altus Consulting Corp
Herndon, VA🇺🇸17 hours agoAWSNagiosSplunk+7 moreTechnologyAC - This week
Systems Administrator
Attainx Inc.
Herndon, Virginia🇺🇸YesterdayFull timeTechnologyAT - This week
Systems Administrator Expert
VTG
Herndon, VA🇺🇸2 days agoAWSScrumAgile+5 moreTechnologyVT - This week
Systems Administrator with Security Clearance
ClearanceJobs Workforce Solutions
Herndon, VA🇺🇸2 days agoScrumAgileAzure+2 moreTechnologyCW - This week
System Administrator
Apogee Integration, Llc
Herndon, VA🇺🇸$92k - $185k/yr2 days agoTechnologyAI - This week
Systems Administrator with Security Clearance
B/Core
Herndon, VA🇺🇸$145k - $165k/yr2 days agoAWSScrumAgile+4 moreTechnologyB/ - This week
Classified Systems Administrator and ISSO with Security Clearance
CACI
Herndon, VA🇺🇸$103.8k - $218.1k/yr2 days agoSQLSQL ServerActive Directory+4 moreTechnologyCA - This week
Systems Administrator SME
Cornerstone Defense
Herndon, VA🇺🇸2 days agoAWSActive DirectoryAgile+3 moreTechnologyCD - This week
Jr. Systems Administrator with Security Clearance
NewGen Technologies
Herndon, VA🇺🇸2 days agoActive DirectoryTechnologyNTGet new System Administrator jobs in Herndon in your inbox
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- This week
Systems Administrator Sr - TS/SCI w/Polygraph
General Dynamics
Herndon, VA🇺🇸$114.8k - $155.3k/yr3 days ago401kSplunkCompliance+2 moreTechnologyGD - This week
Systems Administrator - TS/SCI w/Polygraph
General Dynamics
Herndon, VA🇺🇸$136k - $184k/yr3 days agoSplunkRESTSAFeTechnologyGD - This week
Systems Administrator /Cloud Administrator
TechWish
Herndon, VA🇺🇸3 days agoActive DirectoryAnsibleAzure+3 moreTechnologyTE - This week
Senior Systems Administrator(Azure) - Local Candidates Only
TechWish
Herndon, VA🇺🇸3 days agoEncryptionActive DirectoryAnsible+8 moreTechnologyTE - This week
Senior Systems Admin Specialist
General Dynamics
Herndon, VA🇺🇸$166.4k - $175.5k/yr3 days agoAR/VRActive DirectoryBlockchain+2 moreTechnologyGD - This week
Systems Administrator Expert with Security Clearance
VTG
Herndon, VA🇺🇸4 days agoTechnologyVT - This week
O&M Systems Administrator for Linux Systems with Security Clearance
Mauck Research Group, LLC
Herndon, VA🇺🇸$150k - $225k/yr5 days agoSVNSplunkAgile+6 moreTechnologyMR - This week
Systems Administrator with Security Clearance
Peraton
Herndon, VA🇺🇸$112k - $179k/yr5 days agoOracleSQLSQL Server+6 moreTechnologyPE Tier 2 Systems Admin Support
Lockheed Martin Corporation
Herndon, VA🇺🇸$97.1k - $171.2k/yr1 week agoAWSAgileSAFe+1 moreTechnologyLMSystems Administrator
Lockheed Martin Corporation
Herndon, VA🇺🇸$82.9k - $146.2k/yr1 week agoDockerLogstashNagios+13 moreTechnologyLMSystem Administrator
Yakshna Solutions, Inc.
Herndon, VA🇺🇸1 week agoActive DirectoryAzurePowerShell+1 moreTechnologyYSSenior Window Systems Administrators FSP with Security Clearance
TENICA and Associates LLC
Herndon, VA🇺🇸1 week agoTechnologyTASystems Administrator - Expert
Cherokee Federal
Herndon, VA🇺🇸$170k - $210k/yr1 week ago401kAWSScrum+9 moreTechnologyCFSystems Administrator FSP with Security Clearance
TENICA and Associates LLC
Herndon, VA🇺🇸1 week agoTechnologyTASystems Administrator - Expert with Security Clearance
Cherokee Federal
Herndon, VA🇺🇸$170k - $210k/yr2 weeks agoAWSScrumAgile+4 moreTechnologyCFSr. Systems Engineer III (6706) with Security Clearance
MetroStar Systems Inc.
Herndon, VA🇺🇸$166k - $202k/yr3 weeks agoAWSMLOpsAgile+3 moreTechnologyMSSystems Administrator Advisor, Shift 2 with Security Clearance
Peraton
Herndon, VA🇺🇸$86k - $138k/yr3 weeks agoHTTPSSAFeTechnologyPETTG-320 - Systems Administrator - $269,150 Total Compensation with Security Clearance
TTG Solutions Inc.
Herndon, VA🇺🇸$161k - $195k/yr4 weeks agoScrumAgileHuman ResourcesTSSystem Administrator with Security Clearance
Cornerstone Defense
Herndon, VA🇺🇸4 weeks agoAWSActive DirectoryAzure+4 moreTechnologyCDSystems Administrator SME with Security Clearance
Cornerstone Defense
Herndon, VA🇺🇸4 weeks agoAWSActive DirectoryAgile+3 moreTechnologyCD
Frequently asked questions
How many System Administrator jobs in Herndon are available?
Haystack currently lists 41 live System Administrator jobs in Herndon, with 18 added in the past week. Numbers refresh daily.
What do System Administrator jobs in Herndon pay?
Advertised salaries typically range from $142k to $178k per year, based on 21 live postings with advertised salaries.
Which companies are hiring for System Administrator jobs in Herndon?
Peraton, Cornerstone Defense, General Dynamics, TENICA and Associates LLC, VTG are actively hiring right now, alongside 19 other employers.