System Administrator Jobs in Herndon
36 live System Administrator roles in Herndon, United States. Apply directly on Haystack.
Last updated 27 August 2026. Job counts refresh daily.
As of 27 August 2026, Haystack lists 36 live System Administrator jobs in Herndon, with 13 added in the past week and typical advertised salaries of $135k to $178k. Employers hiring right now include Peraton, Cornerstone Defense and TENICA and Associates LLC.
Top companies hiring
plus 17 more companies hiring in this category
- PE
Systems Administrator Advisor, Shift 2 with Security Clearance
Peraton
Herndon, VA馃嚭馃嚫$86k - $138k/yrHybrid5 weeks agoHTTPSTechnology - VA
Linux Systems Engineer
NewVantor
Herndon, Virginia馃嚭馃嚫Hybrid59 minutes agoAgileTechnology - VT
Systems Administrator Expert with Security Clearance
VTG
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoTechnology - ET
System Administrator with Security Clearance
NewEinstein Technologies
Herndon, VA馃嚭馃嚫Hybrid2 days agoBashGPTPerl+2Technology - SY
Mid-Level Systems Administrator [$273k/yr+] TS/SCI-FS Poly with Security Clearance
NewSYSTOLIC
Herndon, VA馃嚭馃嚫Hybrid2 days agoOracleHTTPSDNS+1Technology - PE
Cloud Systems Administrator - Senior Linux / AWS Application Sus with Security Clearance
Peraton
Herndon, VA馃嚭馃嚫$135k - $216k/yrHybrid6 weeks agoDockerOracleAWS+4Technology - NP
Systems Engineer - IT (Top Secret/SCI with CI Poly to start Clea with Security Clearance
North Point Technology, LLC
Herndon, VA馃嚭馃嚫Hybrid2 weeks agoSVNShellAnsible+5Technology - PE
Systems Administrator with Security Clearance
Peraton
Herndon, VA馃嚭馃嚫$112k - $179k/yrHybrid6 weeks agoOracleSQLSQL Server+5Technology - MR
O&M Systems Administrator for Linux Systems with Security Clearance
Mauck Research Group, LLC
Herndon, VA馃嚭馃嚫$150k - $225k/yrHybrid6 weeks agoSVNSplunkAgile+6Technology - YS
System Administrator (ICAM)
Yakshna Solutions, Inc.
Herndon, VA馃嚭馃嚫On-site6 days agoActive DirectoryAzurePowerShellTechnologyGet new System Administrator jobs in Herndon in your inbox
Daily digest of matching roles. Unsubscribe anytime.
- AV
Linux System Administrator with Security Clearance
AV, Inc.
Herndon, VA馃嚭馃嚫$80k - $100k/yrOn-site1 week agoDockerDroneSplunk+7Technology - PE
Identity/ Directory Services Administrator, Advisor with Security Clearance
Peraton
Herndon, VA馃嚭馃嚫$112k - $179k/yrHybrid6 weeks agoActive DirectoryComplianceHTTPS+2 - TI
Systems Administrator
Two95 International Inc.
Herndon, Virginia馃嚭馃嚫Hybrid6 months agoActive DirectoryAzurePowerShellTechnology - B/
Technical Systems Integrator with Security Clearance
B/Core
Herndon, VA馃嚭馃嚫Hybrid1 week agoEncryptionTCP/IPDNSTechnology - PE
Systems Storage Administration, Advisor with Security Clearance
Peraton
Herndon, VA馃嚭馃嚫$104k - $166k/yrHybrid1 week agoSAFeAdministrative - CW
Systems Administrator with Security Clearance
ClearanceJobs Workforce Solutions
Herndon, VA馃嚭馃嚫On-site1 week agoScrumAgileAzure+2Technology - CA
Classified Systems Administrator and ISSO with Security Clearance
CACI
Herndon, VA馃嚭馃嚫$103.8k - $218.1k/yrOn-site5 weeks agoSQLSQL ServerActive Directory+4Technology - NT
Jr. Systems Administrator with Security Clearance
NewGen Technologies
Herndon, VA馃嚭馃嚫Hybrid2 weeks agoActive DirectoryTechnology - CD
Network Administrator with Security Clearance
Cornerstone Defense
Herndon, VA馃嚭馃嚫$150k - $220k/yrHybrid2 weeks agoTechnology - DS
Network Administrator with Security Clearance
Dexian Signature Federal
Herndon, VA馃嚭馃嚫Hybrid2 weeks agoTechnology - LM
Tier 2 Systems Admin Support
Lockheed Martin Corporation
Herndon, VA馃嚭馃嚫$97.1k - $171.2k/yrHybrid2 weeks agoAWSAgileSAFe+1Technology - LM
Systems Administrator
Lockheed Martin Corporation
Herndon, VA馃嚭馃嚫$82.9k - $146.2k/yrHybrid7 weeks agoDockerLogstashNagios+12Technology - TA
Senior Window Systems Administrators FSP with Security Clearance
TENICA and Associates LLC
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoTechnology - TA
Systems Administrator FSP with Security Clearance
TENICA and Associates LLC
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoTechnology - MS
Sr. Systems Engineer III (6706) with Security Clearance
MetroStar Systems Inc.
Herndon, VA馃嚭馃嚫$166k - $202k/yrHybrid5 weeks agoAWSMLOpsAgile+3Technology - TS
TTG-320 - Systems Administrator - $269,150 Total Compensation with Security Clearance
TTG Solutions Inc.
Herndon, VA馃嚭馃嚫$161k - $195k/yrHybrid5 weeks agoScrumAgileHuman Resources - CD
System Administrator with Security Clearance
Cornerstone Defense
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoAWSActive DirectoryAzure+4Technology - CD
Systems Administrator SME with Security Clearance
Cornerstone Defense
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoAWSActive DirectoryAgile+3Technology - CP
Systems Administrator- Senior with Security Clearance
Crimson Phoenix
Herndon, VA馃嚭馃嚫Hybrid6 weeks agoTechnology - TS
TTG-295 - Systems Administrator - $269,150 Total Compensation with Security Clearance
TTG Solutions Inc.
Herndon, VA馃嚭馃嚫$161k - $195k/yrHybrid6 weeks agoAgileHuman Resources
Frequently asked questions
How many System Administrator jobs in Herndon are available?
Haystack currently lists 36 live System Administrator jobs in Herndon, with 13 added in the past week. Numbers refresh daily.
What do System Administrator jobs in Herndon pay?
Advertised salaries typically range from $135k to $178k per year, based on 17 live postings with advertised salaries.
Which companies are hiring for System Administrator jobs in Herndon?
Peraton, Cornerstone Defense, TENICA and Associates LLC, Lockheed Martin Corporation, TTG Solutions Inc. are actively hiring right now, alongside 18 other employers.