Description Robert Half is seeking a skilled
System Administrator to support a client in
San Antonio, Texas, responsible for managing mission-critical systems, ensuring infrastructure security, and maintaining compliance across a diverse IT environment. The ideal candidate will bring strong expertise in server administration, virtualization, networking, automation, and enterprise hardware/software support.
Higher-Level ResponsibilitiesThe System Administrator will be responsible for advanced infrastructure operations, environment stability, and enterprise-level configuration management. Key responsibilities include:
- Developing and deploying Group Policy Objects (GPOs) and scripts to remediate complex or widespread end-user device (EUD) issues related to vulnerabilities, security requirements, or compliance mandates.
- Maintaining server and networking equipment, performing regular maintenance, addressing vulnerabilities, and ensuring compliance with Department of Defense (DoD) and DoW standards.
- Administering VMware vCenter and ESXi hosts, including license updates, certificate management, patching, troubleshooting, and resource allocation across the virtual environment.
- Managing internal and external security certificates, ensuring proper tracking, renewals, and alignment with organizational security policies.
- Updating and managing critical server functions as the environment evolves-for example:
- Updating WSUS for new Windows OS versions
- Updating WDS for new hardware deployments
- Applying updates to RHEL and other Linux servers
- Supporting additional server roles as needed
- Troubleshooting and maintaining backup servers and Oracle-based devices, resolving issues to ensure system continuity and data integrity.
IT Gear Support Responsibilities(General support and configuration; vendor support/maintenance contracts are maintained separately)
This role includes support for a broad range of IT equipment and technologies:
- Palo Alto firewalls
- Cisco switches and routers
- Phone systems (general issues)
- Wireless infrastructure
- Multi-Function Devices (MFDs)
- VMware platforms
Requirements Active Directory, Microsoft Windows Server, MS Windows 10, Dell Technologies, Citrix Technologies
Technology Doesn't Change the World, People Do.
Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.
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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.
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