System Administrator Jobs in San Antonio, TX

System Administrator jobs in San Antonio are concentrated in the medical center corridor, downtown, and the northwest technology belt near USAA and Lackland Air Force Base, with strong demand across defense contracting, healthcare, and financial services. Employers hiring right now include University Health, XPEL, and Peraton. See the openings below and apply to the ones that match your experience.

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Overview

Open roles13
Top employerUniversity Health
Work type100% On-site
Top credentialBachelor's degree
Companies hiring12

Showing 5 of 13+ System Administrator jobs

Senior Linux System Administrator
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Added 2d ago
Senior Linux System Administrator
Peraton
San Antonio, Texas
Business Development
Partnerships & Business Development
Sales
$176k - $282k/yr
Bachelor's degree
10,000+

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System Administrator I - III
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Added 1w ago
System Administrator I - III
Bridgehead IT
San Antonio, Texas
Cloud Engineering
Solutions Architecture
Technical Product & Program Management
Microsoft Certified: Azure Administrator Associate
51-200

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System Administrator 1
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Added 2w ago
System Administrator 1
RealmOne
San Antonio, Texas
Business Analysis
Business Analyst
Data Analytics
Finance
Bachelor's degree

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System Administrator I
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Added 2w ago
System Administrator I
IBC Bank
San Antonio, Texas
Customer Success
Solutions Engineering & Architecture
Technical Product & Program Management
On-Site
Associate's degree in information technology
1,001-5,000

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System Administrator - Top Secret Clearance (TS/SCI)
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Added 2w ago
System Administrator - Top Secret Clearance (TS/SCI)
Diversified Technical Services, Inc
San Antonio, Texas
IT Support
Network Engineering
Systems Administration
51-200

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See All 13 System Administrator Jobs in San Antonio

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System Administrator Job Market in San Antonio

Who's Hiring

University Health2 open roles
XPEL1 open role
Peraton1 open role

Top Industries Hiring

  • Healthcare & Medical Services

System Administrator Jobs in San Antonio: Frequently Asked Questions

How do I get a system administrator job in San Antonio?

Focus on San Antonio's largest hiring sectors: defense and federal contracting around Lackland Air Force Base and Port San Antonio, the South Texas Medical Center complex, and financial services firms concentrated downtown and in the northwest suburbs. Candidates with active security clearances, experience supporting government or healthcare environments, and certifications like CompTIA Security+ or Microsoft Certified: Azure Administrator move to the front of the line in this market.

Which companies hire system administrators in San Antonio?

Companies currently hiring system administrators in San Antonio include University Health, XPEL, and Peraton, per current listings on Migrate Mate as of November 2026. San Antonio's employer mix skews toward large defense contractors, regional health systems, and financial institutions, many of which maintain significant on-site IT infrastructure requiring dedicated systems staff.

Are there remote system administrator jobs in San Antonio?

Yes, though with limits: system administrator roles tied to physical servers, data centers, or government-classified environments are predominantly on-site, while cloud-focused or monitoring-heavy positions lean more remote. About 0% of system administrator openings tied to San Antonio are remote or hybrid as of November 2026. Cloud infrastructure and help desk escalation roles offer the strongest remote options locally.

How can I get a system administrator job in San Antonio with little or no experience?

The most realistic entry path in San Antonio is through helpdesk or IT support roles at the city's large health systems, such as those in the South Texas Medical Center, or with defense contractors that hire entry-level technicians for base IT operations. Earning a CompTIA A+ or Network+ certification before applying, and targeting junior roles with federal subcontractors at Port San Antonio, gives candidates without a long work history a concrete foothold in the local market.

Which industries hire the most system administrators in San Antonio?

The sectors hiring the most system administrators in San Antonio are Healthcare & Medical Services, based on current listings on Migrate Mate as of November 2026. San Antonio's heavy concentration of military installations, a sprawling medical district, and several major financial services headquarters create sustained, year-round demand for systems professionals across all three sectors.

See All 13 System Administrator Jobs in San Antonio

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