System Administrator Jobs in San Antonio
38 live System Administrator roles in San Antonio, United States. Apply directly on Haystack.
Last updated 7 October 2026. Job counts refresh daily.
As of 7 October 2026, Haystack lists 38 live System Administrator jobs in San Antonio, with 7 added in the past week. Employers hiring right now include BEAT LLC, Alpha Omega and University Health. 3% of these roles are remote friendly.
Top companies hiring
plus 13 more companies hiring in this category
- IG
System Administrator (Night Shift) with Security Clearance
NewInsight Global, Inc.
San Antonio, TX馃嚭馃嚫$55 - $60/hrHybridYesterdayActive DirectoryPowerShellPython+1Technology - LE
Network Administrator - Night Shift with Security Clearance
Leidos
San Antonio, TX馃嚭馃嚫$59.1k - $106.9k/yrOn-site4 days agoAWSTechnology - TC
Windows Systems Administrator with Security Clearance
TEKsystems c/o Allegis Group
San Antonio, TX馃嚭馃嚫On-site6 days agoPowerShellAWSVMware+2Technology - IG
Network Administrator (3rd Shift) with Security Clearance
Insight Global, Inc.
San Antonio, TX馃嚭馃嚫$100k - $125k/yrHybrid6 days agoAWSTechnology - RE
System Administrator 2 with Security Clearance
RealmOne
San Antonio, TX馃嚭馃嚫Hybrid6 days agoTechnology - BA
System Administrator with Security Clearance
NewBooz Allen Hamilton
San Antonio, TX馃嚭馃嚫$61.9k - $141k/yrOn-site2 days agoActive DirectoryVMwareTechnology - BA
System Administrator
Booz Allen Hamilton
San Antonio, TX馃嚭馃嚫$61.9k - $141k/yrOn-site1 week agoActive DirectoryVMwareTechnology - GO
Linux Administrator with Security Clearance
GovCIO
San Antonio, TX馃嚭馃嚫$125k - $135k/yrOn-site1 week agoPythonBashAnsible+6 - GO
Systems Administrator (VM Ware) with Security Clearance
NewGovCIO
San Antonio, TX馃嚭馃嚫$85k - $90k/yrOn-siteYesterdayActive DirectoryTechnology - LO
PostgreSql DBA
Lorhan Corporation
San Antonio, TX馃嚭馃嚫Remote3 days agoOracleSQLSQL Server+2TechnologyGet new System Administrator jobs in San Antonio in your inbox
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- AO
Systems Administrator III with Security Clearance
NewAlpha Omega
San Antonio, TX馃嚭馃嚫$75k - $113.8k/yrOn-siteYesterdayEncryptionActive DirectoryAzure+1Technology - SE
Systems Engineer / System Administrator for Managed Service Provider
Straight Edge Technology, Inc.
San Antonio, Texas馃嚭馃嚫On-site2 weeks agoSQLAzureTechnology - DP
Linux Administrator with Security Clearance
NewDunhill Professional Search
San Antonio, TX馃嚭馃嚫$74.1k - $89.1k/yrHybrid2 days agoAdministrative - MA
Linux Systems Administrator with Security Clearance
MANTECH
San Antonio, TX馃嚭馃嚫Hybrid1 week agoOpenStackAWSAnsible+6Technology - SS
System Admin II (RACF)
Security Service Federal Credit Union
San Antonio, TX馃嚭馃嚫Hybrid3 weeks agoTechnology - SS
System Admin III
Security Service Federal Credit Union
San Antonio, TX馃嚭馃嚫Hybrid1 week agoTechnology - AO
System Administration Application Packaging with Security Clearance
NewAlpha Omega
San Antonio, TX馃嚭馃嚫$78k - $113.8k/yrOn-siteYesterdayAzureTechnology - BG
System Administrator/Lead Technician - Physical Security Systems
Brookfield Global
San Antonio, TX馃嚭馃嚫On-site4 weeks agoMicrosoft OutlookTechnology - UH
Senior System Administrator
University Health
San Antonio, Texas馃嚭馃嚫Hybrid5 weeks agoOracleSQLTCP/IP+2Technology - 3I
Archer Admin
360 IT Professionals
San Antonio, TX馃嚭馃嚫On-site9 years agoObjective-CSQLSQL Server+3Technology - EM
System Admin L3 - TS/SCI Poly required with Security Clearance
EMTAK LLC
San Antonio, TX馃嚭馃嚫Hybrid5 days agoTechnology - UH
Senior System Administrator - UKG
University Health
San Antonio, Texas馃嚭馃嚫Hybrid6 weeks agoOracleSQLSQL Server+1Technology - UH
Senior System Administrator - PeopleSoft
University Health
San Antonio, Texas馃嚭馃嚫Hybrid6 weeks agoOracleSQLSQL Server+1Technology - EA
Site SA Assistant with Security Clearance
Empower AI
San Antonio, TX馃嚭馃嚫$71.4k/yrOn-site4 days agoAdministrative - EA
Site System Administrator with Security Clearance
NewEmpower AI
San Antonio, TX馃嚭馃嚫$86.5k/yrOn-siteYesterdayOracleSQLTechnology - RE
System Administrator with Security Clearance
RealmOne
San Antonio, TX馃嚭馃嚫Hybrid5 days agoTechnology - BE
System Administrator Enterprise with Security Clearance
BEAT LLC
San Antonio, TX馃嚭馃嚫Hybrid1 week agoEncryptionAzurePKITechnology - EP
Network and Computer Systems Administrator with Security Clearance
EPS Corporation
San Antonio, TX馃嚭馃嚫Hybrid5 days agoFiberActive DirectoryVMwareTechnology - BE
System Administrator (EM Services) with Security Clearance
NewBEAT LLC
San Antonio, TX馃嚭馃嚫Hybrid2 days agoSQLAzurePower BITechnology - BE
System Administrator Intermediate (PS) with Security Clearance
NewBEAT LLC
San Antonio, TX馃嚭馃嚫Hybrid2 days agoAzureZero TrustTechnology
Frequently asked questions
How many System Administrator jobs in San Antonio are available?
Haystack currently lists 38 live System Administrator jobs in San Antonio, with 7 added in the past week. Numbers refresh daily.
Which companies are hiring for System Administrator jobs in San Antonio?
BEAT LLC, Alpha Omega, University Health, Insight Global, Inc., RealmOne are actively hiring right now, alongside 14 other employers.
Are there remote System Administrator jobs in San Antonio?
Yes. 1 of the current listings are remote friendly. Browse the remote-only view.