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4 results for Network Administrator in Cibolo, TX
- San Antonio, TX
- onsite
- Temporary
- 26.1915 - 30.327 USD / Hourly
- <p>Robert Half is seeking a skilled <strong>System Administrator</strong> to support a client in <strong>San Antonio, Texas</strong>, 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.</p><p><br></p><p><strong>Higher‑Level Responsibilities</strong></p><p>The System Administrator will be responsible for advanced infrastructure operations, environment stability, and enterprise‑level configuration management. Key responsibilities include:</p><ul><li><strong>Developing and deploying Group Policy Objects (GPOs) and scripts</strong> to remediate complex or widespread end‑user device (EUD) issues related to vulnerabilities, security requirements, or compliance mandates.</li><li><strong>Maintaining server and networking equipment</strong>, performing regular maintenance, addressing vulnerabilities, and ensuring compliance with Department of Defense (DoD) and DoW standards.</li><li><strong>Administering VMware vCenter and ESXi hosts</strong>, including license updates, certificate management, patching, troubleshooting, and resource allocation across the virtual environment.</li><li><strong>Managing internal and external security certificates</strong>, ensuring proper tracking, renewals, and alignment with organizational security policies.</li><li><strong>Updating and managing critical server functions</strong> as the environment evolves—for example:</li><li>Updating <strong>WSUS</strong> for new Windows OS versions</li><li>Updating <strong>WDS</strong> for new hardware deployments</li><li>Applying updates to <strong>RHEL</strong> and other Linux servers</li><li>Supporting additional server roles as needed</li><li><strong>Troubleshooting and maintaining backup servers and Oracle-based devices</strong>, resolving issues to ensure system continuity and data integrity.</li></ul><p><br></p><p><strong>IT Gear Support Responsibilities</strong></p><p>(General support and configuration; vendor support/maintenance contracts are maintained separately)</p><p>This role includes support for a broad range of IT equipment and technologies:</p><ul><li>Palo Alto firewalls</li><li>Cisco switches and routers</li><li>Phone systems (general issues)</li><li>Wireless infrastructure</li><li>Multi‑Function Devices (MFDs)</li><li>VMware platforms</li></ul><p><br></p>
- 2026-04-06T00:00:00Z
- San Antonio, TX
- onsite
- Contract / Temporary to Hire
- 38 - 44 USD / Hourly
- We are looking for a skilled Systems Administrator to join our team in San Antonio, Texas. This Contract to permanent position offers an opportunity to manage and optimize complex computer systems while supporting organizational goals. The ideal candidate will bring technical expertise, project management skills, and a strong understanding of IT security best practices.<br><br>Responsibilities:<br>• Administer and maintain systems such as Active Directory, Windows Server, and Microsoft Entra ID to ensure seamless operations.<br>• Oversee virtualization environments, including ESX, and manage storage solutions like NetApp and SAN technologies.<br>• Implement backup solutions using tools like Rubrik to safeguard organizational data.<br>• Collaborate with cross-functional teams to deliver technical guidance and resolve system-related issues.<br>• Monitor system performance and perform regular updates to maintain compliance with IT security standards.<br>• Plan and execute complex computer system tasks in alignment with company policies and procedures.<br>• Provide technical expertise and project management support for system implementations and upgrades.<br>• Ensure system availability and reliability by proactively identifying and addressing potential risks.<br>• Maintain documentation and create reports to track system configurations and performance metrics.<br>• Build and sustain positive relationships with coworkers and stakeholders to facilitate smooth operations.
- 2026-04-08T00:00:00Z
- San Antonio, TX
- onsite
- Temporary
- 42.75 - 49.5 USD / Hourly
- <p>We are looking for an experienced Systems Administrator to join our team in San Antonio, Texas. In this long-term contract position, you will play a pivotal role in managing Linux systems while supporting research initiatives and organizational objectives. The ideal candidate will possess in-depth expertise in system management and demonstrate proficiency in a variety of technologies.</p><p><br></p><p>Responsibilities:</p><p>• Manage and maintain Linux-based systems to ensure optimal performance and reliability.</p><p>• Oversee the deployment and configuration of tools such as Conda and Jupiter</p><p>• Provide technical leadership in the administration and management of organizational systems.</p><p>• Collaborate with cross-functional teams to support research efforts and operational goals.</p><p>• Troubleshoot and resolve system issues to minimize downtime and maximize efficiency.</p><p>• Implement best practices for system security and data protection.</p><p>• Monitor system performance and perform regular updates to ensure smooth operation.</p><p>• Utilize Active Directory to manage user access and permissions.</p><p>• Support Windows Server environments and Windows 10 systems.</p><p>• Work with Dell and Citrix technologies to enhance system functionality</p>
- 2026-04-08T00:00:00Z
- San Antonio, TX
- onsite
- Contract / Temporary to Hire
- 42.75 - 49.5 USD / Hourly
- We are looking for an experienced Database Administrator to join our team in San Antonio, Texas. This is a contract position with the potential for a permanent role that requires strong expertise in managing and optimizing database systems, including Microsoft SQL Server and Oracle. The ideal candidate will play a key role in ensuring database performance, security, and reliability while actively contributing to team projects and development initiatives.<br><br>Responsibilities:<br>• Install, configure, upgrade, and troubleshoot Microsoft SQL Server and Oracle databases on both physical and virtual servers.<br>• Optimize database performance, ensuring high availability, scalability, and security.<br>• Manage multiple databases, monitoring hardware and software resource utilization to maintain efficiency.<br>• Document database procedures and provide training to technical teams and end users as required.<br>• Collaborate with project teams and work groups to support development efforts and implement database solutions.<br>• Perform database migrations and upgrades, ensuring a seamless transition and minimal disruption.<br>• Analyze system requirements and recommend database solutions to meet organizational needs.<br>• Conduct regular performance tuning and maintenance tasks to enhance database operations.<br>• Ensure compliance with data governance policies and industry best practices.<br>• Provide technical expertise for troubleshooting and resolving database-related issues.
- 2026-04-08T00:00:00Z