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31 windows systems administrator jobs at 23 companies in San Antonio, TX

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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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3w
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Windows Systems Administrator and Vulnerability Management Coordinator
Kansas City or San Antonio or Idaho Falls
OnsiteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
6+ YOE6+ years experience supporting Windows Server and hybrid cloud environments with PowerShell and Ansible; ability to obtain Public Trust; experience with Active Directory, VMware, Azure, and vulnerability remediation.
VMware vSphere, Azure Monitor, Azure Update Management, Defender for Cloud, Azure VMware Solution (AVS), Microsoft Azure, Active Directory, DNS, DHCP, Group Policy, PowerShell, Ansible, GitLab, Carbon Black, CyberArk, Defender, Remedy, ServiceNow, AWS, GCP
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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 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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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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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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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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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: Designs and manufactures advanced aerospace and defense systems.
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
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2w
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System Administrator
San Antonio, Texas, United States
OnsiteFull Time
RealmOne
RealmOne: Provides advanced technology services for national security agencies.
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
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10h
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IT Administrator I
San Antonio, Texas, United States
$74k/yr OnsiteFull Time
Edwards Aquifer Authority
Edwards Aquifer Authority: Manages and protects the Edwards Aquifer groundwater system.
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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3mo
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Red Hat Linux System Administrator
San Antonio, Texas, United States
OnsiteFull Time
G6 Cyber Solutions
G6 Cyber Solutions: A technology solutions provider focused on national security and military operations.
Windows and Linux system administration; hardware/software management; patching and security; accreditation docs OV1-OV3; vulnerability scanning; CLI proficiency.
Red Hat Linux, Windows Server, STIG, SCAP, SIEM, HIDS, NIDS
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3mo
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Intermediate System Administrator
San Antonio or Fort Meade
OnsiteFull Time
Semper Valens Solutions
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
10+ YOE10+ years IT systems administration on Windows and Linux; AWS maintenance; Kubernetes; Docker; Terraform; Helm; Ansible; CI/CD; GitLab; Kustomize; IAT Level II; Security+; CISSP; TS/SCI eligibility
Kubernetes, Docker, AWS, Azure, Google Cloud, Linux, Windows, Helm, Terraform, Ansible, Vault, CI/CD, GitLab, Kustomize
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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
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2mo
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Systems Engineer / System Administrator for Managed Service Provider
San Antonio, Texas, United States
OnsiteFull Time
Straight Edge Technology
Straight Edge Technology: Provides managed IT and cybersecurity services for Texas businesses.
5+ YOEBS in CS/Engineering or 5+ yrs exp; extensive PC ops knowledge; experience with monitoring/automation; experience with firewall, cloud, networking, SQL, and Windows Server.
Sophos Firewall, Meraki Firewall, Office 365, Microsoft 365, Azure Virtual Desktop, RDS, SQL Server, Windows Server
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1w
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IT Site Administrator (Bilingual)
San Antonio or Vega Baja
OnsiteFull Time
Viant
Viant: Designs and manufactures complex medical devices for global OEMs.
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
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2mo
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System Administrator
San Antonio, Texas, United States
$110k-$127k/yr OnsiteFull Time
SRC
SRC: Develops advanced radar and electronic warfare systems.
4+ YOEBachelor's in computer-related field and 4+ years' experience; active TS/SCI clearance required; experience with Linux/RHEL, Kubernetes/Open Shift, SAN/NAS, Windows Server, HPC; CompTIA Security+ CE and RHCSA certifications preferred; able to support on-call/shift work and TDY.
Linux/RHEL, Kubernetes, Open Shift, NAS/SAN, Windows Server, Active Directory, DNS, application servers, database server, mail servers, High-performance computing (HPC)
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11h
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System Administrator, Level 3
San Antonio, Texas, United States
$151k-$166k/yr OnsiteFull Time
WOOD Federal Solutions
WOOD Federal Solutions: Delivers specialized cybersecurity, engineering, and systems solutions for government.
15+ YOERequires 15 years of system administration experience, a technical bachelor's degree or 5 additional years of experience, U.S. citizenship, and active TS/SCI clearance with polygraph.
UNIX, Windows, Service Oriented Architecture (SOA)
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6d
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Senior System Administrator
San Antonio, Texas, United States
$34-$58/hr OnsiteFull Time
University Health
University Health: Provides comprehensive public healthcare and specialized hospital services.
6+ YOEBachelor’s degree in a relevant field or equivalent experience, six years of programming and systems analysis experience, and proficiency in a computer system language and data management methodology.
ERP, PeopleSoft, Premier, UKG Dimensions, 3m, Hyland OnBase Document Management, API, Dell Boomi, Tableau, SQL, Microsoft SharePoint, Adobe Products, Microsoft Office, HIM, TCP/IP, FTP/SFTP, Globalscape, ASP, Web Development, Business Objects, Visual Basic, C++, Microsoft SQL Server, Oracle, Cache, Windows, UNIX
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1d
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Lead IT Systems Engineer - Public Sector
San Antonio or United States
$106k-$155k/yr RemoteFull Time
Lumen Technologies
Lumen TechnologiesNYSE: LUMN: Providing global enterprise telecommunications and network connectivity services.
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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Business Systems and Accounting Analyst (TX, San Antonio)
San Antonio, Texas, United States
OnsiteFull Time
H-E-B Federal Credit Union
H-E-B Federal Credit Union: Member-owned credit union offering banking and lending services.
3+ YOEBachelor's degree in accounting, information systems, business administration, or related field; 3+ years' relevant experience; accounting, systems support, troubleshooting, Microsoft Office 365, and project management skills required.
Microsoft Office 365, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Windows, Adobe Acrobat, Internet, Intranet, APIs
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