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322 systems administrator jobs at 192 companies in San Marcos, TX

3mo
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Systems Administrator
Aberdeen Proving Ground or Fort Belvoir or Huntsville or Austin or Tobyhanna Army Depot or Letterkenny Army Depot or Lakehurst
OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
5+ YOE5+ years of systems administration; install, configure, maintain, troubleshoot OS, hardware, and network; perform backups and provide user support.
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3w
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Associate Systems Administrator
Austin, Texas, United States
$75k-$80k/yr RemoteFull Time
Global Medical Response
Global Medical Response: Provides air and ground emergency medical transport services.
1+ YOE1–3 years system administration or technical support experience; experience with ticketing systems and enterprise SaaS platforms; attention to detail and ability to follow procedures.
NinthBrain, Hospital Hub, ImageTrend, ADO, Jira, Kayako, Microsoft 365, NEMSIS
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16h
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Systems Administrator- Senior
San Antonio, Texas, United States
RemoteFull Time
UT Health San Antonio
UT Health San Antonio: Provides medical education, biomedical research, and health care services.
5+ YOEBachelor’s degree in computer science, management information systems, or IT required, plus five years of IT and systems administration experience. Linux, VMware, ESXi, MSSQL, SSL, and enterprise integration experience required.
Linux, VMware, ESXi, Microsoft SQL Server (MSSQL), SSL, Active Directory, ERP
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4w
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Systems Administrator (Systems Analyst V)
Austin, Texas, United States
$6k-$8k/mo OnsiteFull Time
Texas Department of Public Safety
Texas Department of Public Safety: Protecting and serving the citizens of Texas through public safety.
4+ YOEBachelors degree or equivalent experience, 4+ years systems administration in enterprise IT, 1+ year cloud administration experience, Microsoft 365/AD experience preferred, strong communication and documentation skills.
Microsoft 365, Office 365, Google Workspace, Red Hat Linux, Active Directory Domain Services, Jira Service Desk
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2w
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Systems Administrator II
Austin or Austin
$58k-$70k/yr OnsiteFull Time
University of Texas at Austin
University of Texas at Austin: Provides public higher education and conducts academic research.
2+ YOERequires HS/GED, 2 years of Windows systems administration, troubleshooting, independent work, confidential information handling, communication, and IAT Level II certification eligibility.
Microsoft Windows, Microsoft Active Directory, PowerShell, Microsoft server software, VPN, Remote Desktop, RSAT, Linux, macOS, ServiceNow, Adobe applications
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1w
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Windows Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
NikSoft
NikSoft: Delivering IT solutions and cybersecurity services to federal agencies.
5+ YOERequires 5+ years of Windows systems administration, DISA STIG hardening, VMware and SAN familiarity, a related bachelor's degree, Microsoft certification, and U.S. citizenship for government investigation.
Microsoft Windows, DISA STIGs, VMware, SAN, Active Directory, Group Policy, Red Hat Linux, Scrum, Lean Startup, XP, Microsoft MCSE, Microsoft MCSA, LAN, WAN
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1mo
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Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
10+ YOEActive TS/SCI with polygraph, bachelor’s degree or equivalent, 10+ years related experience, extensive Linux experience, systems administration, patching, troubleshooting, documentation, and collaboration skills.
Linux, Puppet, Satellite, IPA, Nagios, Net App
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3w
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Associate Systems Administrator
Austin, Texas, United States
$75k-$80k/yr RemoteFull Time
Global Medical Response
Global Medical Response: Provides emergency medical, ambulance, and disaster response services.
1+ YOE1–3 years system administration or technical support experience; experience with ticketing systems, SaaS platforms, Microsoft 365; strong attention to detail, communication, and problem‑solving skills.
NinthBrain, Hospital Hub, ImageTrend, ADO, Jira, Kayako, Microsoft 365
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2w
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GTM Systems Administrator
Austin, Texas, United States
HybridFull Time
Red Oak
Red Oak: Compliance software for financial services and insurance firms.
Experienced Salesforce administrator with GTM stack ownership, AI agent/automation building, SaaS background, ability to lead post-merger Salesforce consolidation and ensure data hygiene.
Salesforce, HubSpot, Claude
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1mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
Gonzaba Medical Group
Gonzaba Medical Group: Provides primary and specialty medical care services for patients.
4+ YOE4+ years implementing and supporting Active Directory/GPO, experience with BitLocker, backup/DR, virtualization, PowerShell, Windows and Linux; must hold valid Texas driver license and be able to drive company vehicle.
PowerShell, Active Directory, GPO, Azure, VMware, vSphere, Okta, Veeam, Event Collection, Remote Desktop Services, Citrix, BitLocker, Windows, Linux, RIS, PACS, Mirth, Qvera, MEDQ, NAS/SAN, UPS
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3mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
Apriva
Apriva: Secure mobile payment and classified communication technology provider.
2+ YOEExperience with Windows and Linux server operations, sustainment, and management; DoD SECRET clearance; 2 years related experience; Bachelor or Master degree with related experience.
Windows Server, Linux (Red Hat Enterprise Linux), VPN, Active Directory, SCCM, SQL, MySQL, SELinux, DNS, VMware, ESXi, vCenter, vSphere, Networking devices, Firewall
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1mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
Gonzaba Medical Group
Gonzaba Medical Group: Provides primary, specialty, and urgent medical care services.
4+ YOE4+ years implementing/supporting Active Directory and Group Policy, intermediate PowerShell, advanced Windows, intermediate Linux, 2+ years virtual infrastructure preferred, HS required, TX driver license required.
PowerShell, Windows Desktop, Windows Servers, Linux, Active Directory, GPO, Azure, VMware, vSphere, Okta, Veeam, Event Collection, Remote Desktop Services, Citrix, BitLocker, Domain Management, RIS, PACS, Mirth, Qvera, MEDQ, NAS, SAN, UPS
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2mo
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Systems Administrator
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
BDR Solutions
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
8+ YOE8+ years experience in mobile application deployment, 4‑year degree in IT/math or equivalent, active IAT II and CE certifications to meet DoD 8570/8140, U.S. citizenship, and experience with web development technologies and secure DoD environments.
HTML, CSS, JavaScript, React, Angular, Vue, ASP.NET, C#, Sitecore, SQL, MVC5, PWAs, Jira
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2mo
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IT Systems Administrator
Kermit or Monahans or Austin
OnsiteFull Time
Atlas Energy Solutions
Atlas Energy SolutionsNYSE: AESI: Provides frac sand, logistics, and power for energy companies.
2+ YOE2+ years desktop and production server administration experience; Windows Server, virtualization (VMware/Hyper-V), storage (DAS/NAS/SAN), networking (routers/switches/firewalls/VPN), Linux/Apache/PHP, Office 365/Azure, scripting, ability to work indoors/outdoors, travel and on-call availability.
Microsoft Office 365, Microsoft Azure, VMware, Hyper-V, DAS, NAS, SAN, HP, Dell, Network Appliance, EMC, Linux, Apache, PHP, Routers, Switches, Firewalls, VPN, Active Directory, ERP, Business Intelligence, Microsoft Exchange, Microsoft Windows Server
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1mo
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ADMINISTRATOR, TECHNOLOGY SYSTEMS
Travis County, Texas, United States
$69k-$99k/yr OnsiteFull Time
Eanes Independent School District
Eanes Independent School District: Provides public K-12 education services to students in Texas.
3+ YOEAdminister and maintain datacenter systems (servers, storage, network, backup, IDAM) for ~9,400 users; 3+ years datacenter experience; associates degree or technical cert; Class C driver license; strong communication and customer service skills.
G-Suite, Microsoft O365, VMware vSphere 6, Commvault, Active Directory, Microsoft Server OS 2016, Microsoft Office, NAS, SAN
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2w
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Telecommunications Systems Administrator Sr
Austin, Texas, United States
OnsiteFull Time
Lower Colorado River Authority
Lower Colorado River Authority: Provider of electricity, water, and community services in Texas.
9+ YOE9+ years systems design/administration in UNIX/Windows with 5+ years supporting high-availability systems; experience with P25/OpenSky, private LTE, Ericsson platforms; vendor certifications preferred.
P25, OpenSky, Private LTE, Unified Administration (UAS), ENM, One Layer, Ericsson Security Manager
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2mo
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Systems Administrator II
San Marcos, Texas, United States
$5k/mo HybridFull Time
Texas State University
Texas State University: Public research university offering undergraduate and graduate degree programs.
Requires coding in Python, JavaScript, or PowerShell; RESTful APIs or GraphQL; OAuth, API keys, JSON/XML parsing; data mapping; middleware diagnostics; and enterprise integration experience.
Python, JavaScript, PowerShell, RESTful APIs, GraphQL, OAuth, JSON, XML, Postman, iPaaS, SQL, Git, TeamDynamix, TDX, Banner, Workday, Canvas
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3w
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Systems Administrator II
San Antonio, Texas, United States
OnsiteFull Time
IPSecure
IPSecure: Provides cybersecurity and incident response services for government agencies.
3+ YOEActive TS/SCI clearance, Bachelors or equivalent in IT-related field, CASP+/SecurityX/PMP/CAPM/Project+, 3+ years administering enterprise Windows/Linux, AD, virtualization, patching, backup, and endpoint support.
Windows, Linux, VMware, Active Directory, Group Policy, PowerShell, Bash, DISA STIGs
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1mo
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Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOEActive TS/SCI with poly, bachelor's or equivalent, 10+ years related experience, extensive Linux experience, strong troubleshooting, project experience, and ability to work off-hours.
Linux, Puppet, Satellite, IPA, Nagios, Net App
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2w
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Principal Cyber Systems Administrator (TG)
Annapolis Junction or San Antonio or Aurora or Cary
$99k-$155k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEActive TS/SCI with polygraph, HS+10yrs or Bachelor's+5yrs, experience implementing/troubleshooting/maintaining IT systems, Tier1/2 support, UNIX and Windows administration, system monitoring and capacity planning.
UNIX, Windows
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