3 Results for Systems Administrator Jobs in San Antonio, TX

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Systems Engineer

San Antonio, TX
onsite
Temporary to Hire
38 - 44 USD / Hourly
We are looking for an experienced Systems Engineer to support enterprise infrastructure initiatives. This contract opportunity is ideal for a hands-on technical specialist who can strengthen complex environments while resolving advanced infrastructure issues across servers, networks, virtualization, and storage. The role combines project delivery with high-level operational support, offering the chance to contribute to both ongoing stability and future infrastructure improvements. Responsibilities: • Design, deploy, and maintain enterprise infrastructure components, including routing, switching, server platforms, storage systems, and related technologies. • Provide Tier 3 technical support by diagnosing complex issues, identifying root causes, and restoring service across network, virtualization, backup, and server environments. • Lead or contribute to infrastructure projects lasting several months by gathering technical requirements, shaping solution designs, coordinating implementation plans, and producing clear documentation. • Configure and support Cisco-based networking equipment and enterprise firewall solutions to ensure secure, reliable connectivity across the organization. • Administer VMware environments and manage Windows and Linux servers to support performance, availability, and operational continuity. • Oversee enterprise storage and backup or disaster recovery platforms, helping protect critical systems and data through effective administration and troubleshooting. • Collaborate with internal teams and stakeholders to align infrastructure solutions with business and technical needs. • Create and maintain technical documentation for configurations, procedures, designs, and support activities to improve knowledge sharing and operational consistency.
2026-09-21T00:00:00Z

Systems Security Engineer

San Antonio, TX
onsite
Permanent / Full Time
95000 - 115000 USD / Yearly
We are looking for a Systems Security Engineer to strengthen and secure enterprise infrastructure for a respected financial institution in San Antonio, Texas. This position blends hands-on systems administration with a strong security focus, making it well suited for someone who can protect Windows-based environments while advancing consistent controls across the organization. The individual in this role will help elevate the company’s security posture through practical hardening measures, policy enforcement, and close collaboration with technical and business stakeholders. Responsibilities: • Build, deploy, and support secure infrastructure solutions across both on-premises systems and cloud-based platforms. • Manage and enhance Microsoft security and identity tools, including Intune, Entra ID, Defender, Active Directory, and Group Policy, to improve control and visibility. • Define and apply security configuration standards that align with recognized benchmarks and enterprise best practices. • Drive initiatives related to server hardening, patching, vulnerability resolution, and ongoing configuration oversight. • Create and maintain endpoint protection standards and device compliance rules to support a secure user environment. • Review security alerts, examine potential threats, and coordinate timely corrective actions with the appropriate teams. • Partner with infrastructure, networking, and IT leadership to promote standardized security processes and technology practices. • Provide administration and support for core Windows Server services and related enterprise infrastructure components. • Contribute to audits, risk reviews, and compliance activities associated with regulated financial environments.
2026-09-14T00:00:00Z

Business Applications Administrator

San Antonio, TX
onsite
Permanent / Full Time
80000 - 95000 USD / Yearly
We are looking for a Business Applications Administrator to support and enhance core business systems in San Antonio, Texas. This role works closely with employees across the organization to understand operational needs, improve workflows, and ensure applications are configured to support day-to-day work effectively. The ideal candidate combines technical administration skills with strong business partnership, helping users solve problems, adopt new tools, and get more value from critical platforms. Responsibilities: • Partner with staff across departments to gather business needs, analyze current processes, and recommend practical system-based solutions. • Administer and configure business applications to align with operational goals, user needs, and evolving organizational priorities. • Convert functional requirements into streamlined workflows, system settings, and process improvements within supported platforms. • Investigate and resolve application issues, providing timely support to users and maintaining reliable system performance. • Develop and update clear documentation for system configurations, procedures, training materials, and support processes. • Deliver user training and ongoing guidance to help employees use applications effectively and adopt new features with confidence. • Identify opportunities to improve efficiency through workflow refinement, automation, and stronger application usage standards. • Contribute to system implementations, upgrades, integrations, and related technology initiatives that impact business operations. • Help create consistent practices for governing, supporting, and managing applications across the organization.
2026-09-25T00:00:00Z

3 results for Systems Administrator in San Antonio, TX