35 network administrator jobs at 32 companies in Windcrest, TX

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
3w
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Network Administrator III (WAN)
San Antonio or Montgomery
OnsiteFull Time
Abacus Technology
Abacus Technology: Provides professional IT and engineering services to government agencies.
7+ YOE7+ years network administration experience; HS diploma/GED; Security+ and CCNA required; CCNP/CCIE desired; TS/SCI clearance and U.S. citizenship required; experience with routers, switches, load balancers, automation, SDN, monitoring, and network security.
routers, serial consoles, load balancers, switches, intrusion detection systems (IDS), Software Defined Networking (SDN)
2d
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Network Administrator (3rd Shift)
San Antonio, Texas, United States
$70k-$90k/yr OnsiteFull Time
Core4ce
Core4ce: Provider of data-driven national security and defense technology solutions.
1+ YOE1+ year network administration experience, Secret clearance (or eligibility), HS diploma/GED, 8570 IAT Level II and CND Infrastructure Support within 6 months, experience with Palo Alto/Cisco firewalls, LAN/WAN/VPN, TCPDump/Wireshark, and VMware.
VMware, Palo Alto, Cisco, TCPDump, Wireshark
3w
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Local Team Network Administrator
San Antonio, Texas, United States
$87k-$95k/yr OnsiteFull Time
Aleut Federal
Aleut Federal: Provides infrastructure and technical services to federal government agencies.
3+ YOECurrent Top-Secret/SCI clearance, CompTIA Security+ and Cisco CCNA required, 3+ years network experience, HS or technical trade school in networking, knowledge of VLANs, firewalls, VoIP/VTC, ServiceNow, STIGs, and strong troubleshooting and communication skills.
ServiceNow, Cisco Unified Communications, VoIP, VTC, VLAN, Security Technical Implementation Guide (STIG)
3mo
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Network and Computer Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
EPS Corporation
EPS Corporation: Provides engineering, logistics, and technical solutions to federal agencies.
5+ YOESenior-level network and systems administrator with experience managing NSC, NIPRNet/SIPRNet/JWICS, Cisco networks, AD, VMware, and VoIP.
Cisco Routers and Switches, Active Directory, Microsoft Server, VMware, vSphere, VoIP, Cryptographic equipment, Telecommunications equipment
1w
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Network Administrator III (WAN)
San Antonio, Texas, United States
$100k-$105k/yr OnsiteFull Time
DLS Engineering
DLS Engineering: Provides engineering and cybersecurity services to federal agencies.
7+ YOE7+ years experience installing, configuring, troubleshooting, upgrading, patching, and hardening routers, switches, load balancers and consoles; IAT-II and CCNA required; active Top Secret/SCI clearance; SDN experience desired; must pass government background check.
routers, switches, serial consoles, load balancers, proxies, firewalls, servers, workstations, printers, Storage Area Networks (SAN), Software Defined Networking (SDN)
2mo
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Firewall/Network Security Administrator
San Antonio, Texas, United States
OnsiteFull Time
Sumaria Systems
Sumaria Systems: Defense IT and network security services that support DoD operations.
5+ YOE5+ years enterprise network security; DoD boundary protection; firewall/IDS/IPS; DCO; Top Secret/SCI clearance.
Firewalls, IDS/IPS, Load balancers, Web proxies
2mo
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Network Operator
San Antonio, Texas, United States
OnsiteFull Time
Valero
ValeroNYSE: VLO: Manufactures and markets transportation fuels and petrochemical products.
2+ YOEHigh School Diploma or GED; 2+ years in a Technology or NOC; 2+ years of Windows Server administration; on-site at Valero San Antonio.
Windows Server, PowerShell, VMware, OpenText Operations Bridge, Network Node Manager, SMAX, SCOM, Cisco routing/switching/UCS
2d
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IT Systems Administrator
San Antonio, Texas, United States
OnsiteFull Time
EControls
EControls: Advanced control systems for engines and electric drive powertrains.
3+ YOEBachelor's or equivalent,3+ years system/network/database administration,VMWare/virtualization,scripting,backup/disaster recovery,security,helpdesk and IT operations experience.
VMWare
3w
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System Administrator
San Antonio, Texas, United States
OnsiteFull Time
Def-Logix
Def-Logix: Cybersecurity research, software development, and technical services firm.
3+ YOE3+ years systems administration experience; strong Windows/AD, Linux, virtualization, networking, Microsoft 365, and security monitoring skills; able to work onsite with CUI and maintain compliance (NIST SP 800-171/CMMC L2).
Windows, Linux, Active Directory, Group Policy, DNS, DHCP, VMware vSphere/ESXi, pfSense, OpenVPN, Cisco, UniFi, Microsoft 365, Microsoft Entra ID, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Intune, Microsoft Defender XDR, Microsoft Sentinel, GitLab, KQL, PowerShell, Bash, Python
1d
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IT Administrator
San Antonio, Texas, United States
OnsiteFull Time
AVANCE San Antonio
AVANCE San Antonio: Provides early childhood education and parenting support to underserved families.
2+ YOEAssociate degree preferred, 2+ years service desk and network support, MCP/A+/Network+ preferred, bilingual Spanish/English preferred, valid driver\u000fs license, proficiency with Microsoft Office and Adobe Acrobat.
Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Adobe Acrobat
1mo
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2026-2027 - Network Registrar - San Antonio, TX
San Antonio, Texas, United States
$36k-$48k/yr FieldFull Time
Compass Rose Public Schools
Compass Rose Public Schools: Tuition-free public charter school network serving K-12 students.
High school diploma/GED required; associate's degree or relevant certification preferred. Prior experience with student information systems preferred. Strong organization, data entry, confidentiality, and bilingual (Spanish) communication preferred.
1mo
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Systems Administrator I
Fort Sam Houston, Texas, United States
$50k-$80k/yr OnsiteFull Time
J&J Worldwide Services
J&J Worldwide ServicesNYSE: CBRE: Provides facilities maintenance and engineering services to federal agencies.
5+ YOECollege diploma or degree in computer science or 5+ years' equivalent experience; MCP and Security+ certifications; strong network, systems, security, troubleshooting, and communication skills.
3w
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System Administrator IV- IDCS(M)
Scott Air Force Base or San Antonio
OnsiteFull Time
Semper Valens Solutions
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
10+ YOEActive TS/SCI with CI poly required, 10+ years relevant experience, Bachelor's degree in a relevant field, DoD 8140.01 IAT II certified, systems administration experience and familiarity with Air Force cyber weapon systems and network architectures.
2w
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IT Site Administrator (Bilingual)
San Antonio, Texas, United States
OnsiteFull Time
Viant
Viant: Designs and manufactures complex medical devices for global OEMs.
4+ YOEBilingual English/Spanish sysadmin with Associates degree, 4+ years system administration experience, manufacturing/medical site experience preferred, experience with Entra/Active Directory, Intune, Microsoft 365 apps, VMWare, networking, backups and endpoint security.
Entra Admin, Active Directory, Intune, Microsoft 365, Microsoft OneDrive, Microsoft SharePoint, Microsoft Teams, MSP360, Wasabi, AWS, 3CX, VMWare, Cisco Meraki, UNIFI, Endpoint Central, TCP/IP, DNS, DHCP, VPN, VLAN
3d
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Electric SCADA Administrator
New Braunfels, Texas, United States
$84k-$109k/yr OnsiteFull Time
New Braunfels Utilities
New Braunfels Utilities: Providing municipal electric, water, and wastewater utility services.
5+ YOEAssociates in computer science or related, 5+ years experience, Survalent ADMS/SurvalentONE, SEL relay and Beckwith LTC familiarity, Microsoft Office and SQL Server, DNP3/networking, ability to read substation diagrams.
Survalent ADMS, SurvalentONE ADMS, Schweitzer Engineering Laboratories (SEL), Beckwith LTC, Microsoft Office, Microsoft SQL Server, DNP3, IED
2mo
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Network Instructional Superintendent (Immediate Opening)
San Antonio, Texas, United States
OnsiteFull Time
San Antonio Independent School District
San Antonio Independent School District: Provides public K-12 education for students in San Antonio.
Executive-level district administrator with leadership over instructional programs and district-wide operations.
3w
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Windows Systems Administrator
Romeoville or Bolingbrook or San Antonio or Mohali
OnsiteFull Time
FIS
FISNYSE: FIS: Provides technology solutions for merchants, banks, and capital markets
3+ YOE3+ years supporting multi-site Windows environments, MTA certification, LAN/WAN experience, on-call rotation, Windows workstation/server upgrades, vulnerability remediation, and collaboration with network/firewall teams.
Microsoft Windows 11, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows 10
3w
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Systems Administrator – UNIX / LINUX
San Marcos or Texas or Oklahoma or New Mexico
OnsiteFull Time
McCoy's Building Supply
McCoy's Building Supply: Retailer of lumber, building materials, and farm equipment.
5+ YOE5+ years administering UNIX/Linux in enterprise environments; experience with IBM Power/AIX, PowerVM/LPAR/VIOS, provisioning/patching, shell scripting (ksh/bash), backups, HA, networking, and on-call support; valid driver’s license and willingness to travel overnight.
IBM AIX, LINUX, IBM Power Systems, LPAR, VIOS, PowerVM, NIM, ksh, bash, cron, TCP/IP, TSM/Spectrum Protect, PowerHA, HACMP, Ansible, Chef, Python, Perl
1mo
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Infrastructure and Cybersecurity Administrator
Dripping Springs, Texas, United States
$77k-$106k/yr OnsiteFull Time
Dripping Springs Independent School District
Dripping Springs Independent School District: Provides public K-12 education services in central Texas.
8+ YOEBachelor's in computer science/related field (or 8 yrs equivalent), 8+ years IT experience preferred, knowledge of network/server/cloud infrastructure, cybersecurity frameworks, and relevant certifications (CCNA/CCNP, CISSP, CompTIA CySA+/CASP+).
WAN, LAN, WLAN, VoIP, firewalls, web filtering, VPN, Cisco, HyperV, SAN, Microsoft Active Directory, Azure, Entra ID, Group Policy, Cisco ISE, EDR, NDR, IDS, IPS, MFA, CASB, secure email gateways
1mo
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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