Fair Oaks Ranch • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Fair Oaks Ranch • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Fair Oaks Ranch • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Fair Oaks Ranch • 50 milesRemote · Hybrid · Onsite · Field · All Environments
116 systems administrator jobs at 79 companies in Fair Oaks Ranch, TX
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Systems Administrator- Senior
San Antonio, Texas, United States
RemoteFull Time
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
1w
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Windows Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
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
3mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
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
2mo
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Systems Administrator
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
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
1mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
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
1mo
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Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
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
2mo
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Systems Administrator II
San Marcos, Texas, United States
$5k/mo HybridFull Time
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
4w
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Systems Administrator II
San Antonio, Texas, United States
OnsiteFull Time
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
2w
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Principal Cyber Systems Administrator (TG)
Annapolis Junction or San Antonio or Aurora or Cary
$99k-$155k/yr OnsiteFull Time
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
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
2w
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Principal Cyber Systems Administrator (TG)
Annapolis Junction or San Antonio or Aurora or Cary
$99k-$155k/yr OnsiteFull Time
5+ YOETS/SCI with Polygraph required, HS+10yrs or Bachelor's+5yrs experience, experience administering UNIX/Windows, Tier 1/2 support, troubleshooting, system optimization, and user assistance.
UNIX, Windows
2w
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Senior System Administrator
New Braunfels, Texas, United States
$100k-$140k/yr OnsiteFull Time
5+ YOERequires 5–8 years of systems administration experience, advanced Active Directory, Azure AD/Entra ID, IAM, and Microsoft 365 expertise, plus a bachelor's degree or equivalent experience. Certifications preferred.
Active Directory, Group Policy Objects (GPO), Azure AD/Entra ID, Microsoft 365, PowerShell
1w
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Senior Network and Computer Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
7+ YOE3+ MgmtRequires 7–10 years of systems and network administration experience, 3+ years in a senior or lead role, enterprise virtualization expertise, DoD 8140 IAT certification, CE certification, scripting skills, and eligibility for security clearance.
VMware vSphere, vCenter, Storage Area Network (SAN), NAS, OSPF, BGP, Microsoft Windows Server, Active Directory, DNS, Group Policy, PowerShell
1w
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Site System Administrator
San Antonio or United States
OnsiteFull Time
5+ YOEBachelor's degree in IT or related field, 5+ years of experience, Secret security clearance, and preferred CompTIA Security+ and ITIL 4 Foundation certifications. Must lift up to 40 pounds and travel up to 10%.
Active Directory (AD), System Center Configuration Manager, Post Administration Tool, Travel Document Issuance System, Passport Records Imaging System Management, Automated Cash Register System, vSphere Installation Bundles (VIBs), Oracle, SQL, ServiceNow
2w
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System Administrator
San Antonio, Texas, United States
OnsiteFull Time
5+ YOE5+ years systems administration experience preferred, bachelor\u0002s in a technical discipline, active security clearance with polygraph, ability to manage UNIX/Windows systems, Tier 1/2 support and troubleshooting.
UNIX, Windows
1w
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System Administrator
San Antonio or Boerne or Austin
FieldFull Time
4+ YOERequires an associate or bachelor's degree or equivalent experience, 4–6 years of IT administration experience, systems and networking expertise, virtualization knowledge, and scripting and automation experience.
Microsoft Windows Server, Active Directory, Azure AD, Microsoft 365, Microsoft Exchange, Microsoft SharePoint, Microsoft OneDrive, Microsoft Teams, Intune, VMware, Hyper-V, IT Glue, Kaseya BMS, Kaseya VSA
2d
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Asset Liaison Operations Administrator
San Antonio, Texas, United States
OnsiteFull Time
2+ YOERequires 2+ years in trucking, fleet, transportation administration, or asset management; invoice auditing; title and compliance documentation; Excel or Sheets; and fleet management system experience.
Microsoft Excel, Google Sheets, Fleetio, Samsara, TMW, McLeod, IFTA, IRP, DOT
1mo
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System Administrator – Journeyman
San Antonio, Texas, United States
$85k-$100k/yr RemoteFull Time
ASM ResearchNYSE: ACN: Provides IT and healthcare services to government agencies.
4+ YOEBachelor's (or equivalent) and 4+ years system administration experience; Windows/Linux server management, monitoring, patching, backups, automation with PowerShell/Bash/Python; active Secret clearance and US citizenship required.
Nagios, Splunk, CloudWatch, PowerShell, Bash, Python, VMware, AWS, Azure, Ansible, Terraform
2w
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Linux System Administrator
San Antonio, Texas, United States
$110k-$190k/yr OnsiteFull Time
10+ YOE10+ years system administration experience, Linux administration, enterprise infrastructure support, strong troubleshooting and communication, ability to work independently in mission-focused environments, TS/SCI with polygraph required.
Linux
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
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