28 it system administrator jobs at 20 companies in San Marcos, TX
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IT Senior System Admin
San Antonio, Texas, United States
OnsiteFull Time
5+ YOEBachelor's in information systems, computer science, or equivalent experience; 5+ years of business systems administration experience with configuration, security, cross-functional support, troubleshooting, and change management.
NetSuite, DAP, REST, SOAP, iPaaS
6d
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Sr. IT System & Network Administrator
Drummondville or Las Vegas or Reno or Moncton or Austin or Montreal or Atlanta
OnsiteFull Time
7+ YOEDEC or higher education in computer science or equivalent experience; 7+ years in complex systems and network administration; cloud, hybrid infrastructure, networking, security, automation, and project leadership; fluent French and English.
IaaS, PaaS, MFA, VPNs, Windows Server
1d
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IT Administrator I
San Antonio, Texas, United States
$74k/yr OnsiteFull Time
2+ YOEBachelor’s degree in an IT-related field and 2+ years of relevant experience. Requires Windows, server, cloud, cybersecurity, systems administration, troubleshooting, and communication skills.
Windows Server, Active Directory, Group Policy, Microsoft 365, Office 365, SaaS, PowerShell, Mobile Device Management (MDM), Microsoft Teams, Zoom, Microsoft Azure, Amazon Web Services (AWS), Linux, iOS, Android
1mo
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Senior IT Administrator
Austin, Texas, United States
OnsiteFull Time
5+ YOE5+ years IT support/systems administration, BS preferred, advanced troubleshooting, Microsoft 365 and AWS experience, Active Directory/Azure AD/Entra ID expertise, endpoint and security knowledge, strong communication.
Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Intune, Microsoft Purview, Azure AD/Entra ID, Active Directory, AWS, VPN
1w
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IT Site Administrator (Bilingual)
San Antonio or Vega Baja
OnsiteFull Time
4+ YOEAssociate degree in computer science or technical field, 4–6 years of system administration experience, bilingual English/Spanish fluency, and experience with Windows, networks, Microsoft 365, Active Directory, and IT hardware.
Microsoft Teams, Microsoft OneDrive, Microsoft Exchange, Microsoft SharePoint, Entra Admin, Active Directory, Intune, Microsoft 365, Windows, MSP360, Wasabi, AWS, 3CX, TCP/IP, DNS, DHCP, VPN, VLAN, VMware, Cisco Meraki, UNIFI, Endpoint Central
1mo
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IT Systems Administrator, IT Applications
Redmond or Hawthorne or Bastrop
$95k-$150k/yr OnsiteFull Time
3+ YOEBachelor's or equivalent experience,3+ years managing enterprise applications,experience with Atlassian administration,API integrations (REST,GraphQL,webhooks),scripting (Groovy,Python,Java),and SQL in Linux environments.
Jira Software, Jira Service Management, Confluence, REST, GraphQL, webhooks, Groovy, Python, Java, SQL, Linux, ScriptRunner
2w
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IT Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
3+ YOE3+ years administering Microsoft 365 and Azure/Entra ID, experience with conditional access/MFA, endpoint security, Citrix VDI, PowerShell scripting, and vendor management; willingness for after-hours escalation and travel for site buildouts.
Microsoft 365, Exchange Online, SharePoint, Microsoft Teams, OneDrive, Azure, Entra ID, CrowdStrike, Qualys, Citrix, Intune, Windows Autopilot, PowerShell, Microsoft Graph API, Copilot, Claude
3mo
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IT Systems Administrator Intern
Austin or Fremont
$25/hr OnsiteInternship
Currently pursuing or recently completed a degree in Computer Science, Information Technology, Information Systems, or a related field; strong OS, networking, and helpdesk skills; effective communication.
MDM (Jamf, Intune, Kandji), Google Workspace, Okta, Entra, VLAN, VPN, DNS, DHCP, Jamf, Intune, Kandji, Python, Bash, PowerShell, Slack, Zoom
2mo
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IT Systems Administrator
Kermit or Monahans or Austin
OnsiteFull Time
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
2d
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IT Network Operations Center Administrator
San Antonio or Live Oak or Texas
HybridFull Time
High school diploma or GED, less than one year of related experience, knowledge of networking, data center operations, monitoring systems, file transfer protocols, security certificates, and command prompts.
FTP, SSH, HTTPS, SFTP, FTPS, PGP
1mo
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IT-OPS SharePoint Administrator (AUSTIN, TX)
Austin, Texas, United States
$6k-$10k/mo RemoteFull Time
2+ YOE2 years SharePoint Online administration, 1 year Microsoft SQL/MySQL, 1 year Windows and 1 year Linux systems administration; college degree preferred; strong documentation and communication skills.
SharePoint Online, Microsoft SQL, MySQL, Windows Server, Redhat Linux, Moodle, IIS, Apache, PHP, PowerShell, Microsoft Office, Adobe
2d
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IT Network Operations Center Administrator
Live Oak or Texas
HybridFull Time
0+ YOEHigh school diploma or GED, less than one year of job-related experience, basic systems administration and networking knowledge, monitoring and file-transfer troubleshooting skills, and CompTIA Network+ or Security+.
FTP, SSH, HTTPS, SFTP, FTPS, PGP
1w
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DIR - Systems Administrator VI (IT Systems Management Technician)
Austin, Texas, United States
$9k-$10k/mo OnsiteFull Time
4+ YOEFour-year degree in computer science, computer information systems, or management information systems, plus 4 years of systems analysis and virtual infrastructure design experience; high school diploma required.
Domain Name System (DNS), BIND9, Simple Mail Transfer Protocol (SMTP), Postfix, Mailman, ClamAV, SpamAssassin, OpenDKIM, Red Hat Enterprise Linux, AlmaLinux, Debian, Ubuntu, FreeBSD, Fedora, sh, bash, Perl, PHP, Python, nftables, ufw, ipfw, pfSense, IOS, Sourcefire, SolarWinds, MRTG, Proofpoint EFD, Logstash, VMware, OpenStack, KVM, MicroCloud, Network Time Protocol (NTP), OpenNTPD, TACACS+, C, C++, Microsoft Office
3d
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IT Specialist
Salt Lake City or Seattle or Phoenix or Los Angeles or San Francisco or Denver or Washington or Miami or Atlanta or Chicago or Indianapolis or New Orleans or Boston or Minneapolis or Kansas City or Albuquerque or New York or Oklahoma City or Portland or Austin
$75k-$116k/yr OnsiteFull Time
1+ YOEIT-related experience with VistA software, Windows Server administration, HL7 interfaces, system troubleshooting, enterprise applications, project support, and advanced system administration.
VistA, VistA KIDS, Windows Server, Health Level Seven (HL7), NICE Cybersecurity Workforce Framework, USA Hire, USAJOBS
2d
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IT Cybersecurity - Mission Systems Administrator / Signature Reduction Silo Tech
San Antonio, Texas, United States
$103k-$134k/yr OnsiteFull Time
U.S. citizenship; ability to obtain Top Secret/SCI clearance, pass a possible counterintelligence polygraph and drug test, and obtain Information Assurance certification within six months. Requires systems, network, operating system, and troubleshooting expertise.
Linux, Windows, Cloud, Network Administration
2w
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IT & Cybersecurity Manager
Austin, Texas, United States
$145k/yr OnsiteFull Time
5+ YOEBachelor's or equivalent,5+ years in IT operations/systems administration/cybersecurity,experience with managed service providers,Microsoft 365 administration,vendor and project management,security best practices.
Microsoft 365, Microsoft Entra ID (Azure AD), Microsoft Intune, Microsoft Defender, Microsoft Teams Rooms
3d
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Lead IT Support Engineer
Austin, Texas, United States
$180k-$200k/yr OnsiteFull Time
5+ YOERequires 5+ years in IT or systems administration, Microsoft 365 and Entra ID administration, identity reconciliation, documentation, vendor management, and business stakeholder partnership.
Microsoft 365, Entra ID, SSO, MFA, SCIM, Identity Governance & Administration (IGA), CrowdStrike Falcon, EDR, ITDR, SIEM, SOC 2, ISO 27001, GDPR, MDM, FleetDM, Freshdesk, TeamViewer One, NinjaOne, 1Password, PowerShell, Python, Okta, SailPoint, HRIS
1w
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IT Operations Specialist, Franchise
Austin, Texas, United States
OnsiteFull Time
3+ YOERequires 3–5 years in IT support or operations, distributed or multi-site support, Tier 1–2 troubleshooting, identity and access administration, security knowledge, systems management, and strong communication.
Windows, Microsoft 365, Microsoft Entra ID, Active Directory, Microsoft Intune, Jira Service Management, EZLynx, Applied Epic
3mo
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IT Support Specialist II
Austin, Texas, United States
$55k-$80k/yr OnsiteFull Time
5+ YOE5+ years IT support/systems administration; CompTIA Network+/Security+/A+ required; associate degree preferred; valid driver’s license; experience with Windows, Microsoft 365/Exchange/Entra ID, Active Directory, networking, EMR/EHR and PACS preferred.
Microsoft 365, Exchange, Entra ID, Active Directory, EMR, EHR, PACS, TCP/IP, DNS, DHCP, VLAN, VPN, VoIP, Endpoint management tools, Backup and disaster recovery systems
2d
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Lead IT Systems Engineer - Public Sector
San Antonio or United States
$106k-$155k/yr RemoteFull Time
3+ YOERequires Top Secret and current SCI clearance, DoD 8570 IAT Level II or higher, IT degree plus 3 years or 7 years applicable experience, and Windows, Linux, network security, and systems administration expertise.
Microsoft Windows, Red Hat Linux, McAfee EPO, SQL, SolarWinds, Microsoft SharePoint, Microsoft Exchange Server, ACAS, DoD STIGs, Sun Solaris, Cisco, Juniper
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