Last updated: 2025-11-09
18 It Systems Administration jobs in San Antonio.
Peraton
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the gala…
San Antonio
- Skills: network administration, routers, switches, firewalls, network performance, security compliance, TCP/IP, VLANs, troubleshooting, enterprise networking
- Level: mid
- Type: full_time
University Health
San Antonio
- Skills: System Administration, Technical Guidance, Project Management, Programming, Data Management, ERP Systems, SQL, UNIX, Windows, Clinical Systems
- Level: senior
- Type: full_time
Booz Allen
San Antonio
- Skills: cybersecurity, information assurance, risk assessment, cloud computing, cyber risk analysis, DoD policies, CompTIA Security+, Linux, Windows, Active Directory
- Level: mid
- Type: full_time
Cognizant
Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. …
San Antonio
- Skills: CICS administration, MQ administration, zOS, system troubleshooting, performance tuning, CICSPlex, Websphere MQ, patch management, security administration, 24/7 support
- Level: senior
- Type: full_time
Greenpoint Technologies
Greenpoint delivers nose-to-tail VIP Jet aircraft interiors for private clients and Heads-of-State. We are proud to be known in the aerospace industry for our …
San Antonio
- Skills: Help Desk Support, Customer Service, Active Directory, Windows Server 2022, Microsoft Outlook, Microsoft 365, Technical Writing, Cyber-security, Incident Response, Project Management
- Level: entry
- Type: full_time
L3Harris Technologies
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedicati…
San Antonio
- Skills: network operations, helpdesk, Microsoft Server, DoD, network troubleshooting, Top Secret Clearance, RF connections, WAN router, network performance, COMSEC
- Level: mid
- Type: full_time
MANTECH International Corporation
Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the…
San Antonio
- Skills: Virtual Environments, Linux Administration, Storage Administration, Ansible, Networking Protocols, DevOps tools, Docker, Kubernetes, TS/SCI Clearance, Technical Presentations
- Level: senior
- Type: full_time
General Dynamics Mission Systems, Inc.
General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully…
San Antonio
- Skills: Linux, Oracle, Database Management, Red Hat, Security Clearance, Troubleshooting, STIGs, Performance Tuning, Virtual Servers, Documentation
- Level: senior
- Type: full_time
Angi
At Angi®, we’ve had one simple mission for 30 years: get jobs done well. We make it happen by connecting homeowners with reliable pros who have the skills they…
San Antonio
- Skills: Systems Engineering, IT Infrastructure, Infrastructure as Code, Windows Management, Endpoint Security, Automated Deployment, PowerShell Scripting, Linux Administration, Google Workspace, Compliance
- Level: mid
- Type: full_time
MANTECH International Corporation
Since 1968, we’ve been solving the toughest challenges with groundbreaking tech.
San Antonio
- Skills: Cisco, MPLS, VPN, LAN, WAN, Taclane 175, Data Analytics, Cybersecurity, Network Troubleshooting, Digital Transformation
- Level: mid
- Type: full_time
Booz Allen Hamilton
Booz Allen is an advanced technology company delivering outcomes with speed for America’s most critical defense, civil, and national security priorities. We bu…
San Antonio
- Skills: cybersecurity, network monitoring, operations plans, vulnerability assessment, DoD compliance, cyber threat intelligence, information assurance, enterprise networks, Linux, Active Directory
- Level: mid
- Type: full_time