Quivera Enterprises

System Administrator

• Provide advanced operational and infrastructure support for a mission-critical enterprise datacenter environment supporting the Indian Health Service (IHS).
• Serve as a senior technical resource responsible for maintaining the availability, security, and performance of enterprise systems across Microsoft Windows, Linux, and VMware environments.
• Function as a Subject Matter Expert (SME) for Shared Services Enterprise Datacenter operations, providing Tier III technical support, leading infrastructure initiatives, and supporting enterprise modernization efforts.
• Administer, maintain, and support enterprise Microsoft Windows and Linux server environments.
• Perform daily systems administration activities, including server maintenance, patch management, account administration, monitoring, and issue resolution.
• Provide Tier III operational and technical support for escalated infrastructure incidents.
• Execute enterprise backup, recovery, and disaster recovery procedures for Data Operations Center (DOC) systems.
• Perform hardware and software upgrades, system configuration, resource allocation, performance tuning, and capacity planning.
• Administer and troubleshoot VMware virtualization infrastructure.
• Monitor enterprise systems utilizing Microsoft management tools and datacenter monitoring solutions.
• Support physical datacenter operations, including environmental monitoring systems, DCIM applications, and physical security technologies.
• Develop, maintain, and update technical documentation, standard operating procedures (SOPs), system diagrams, and project documentation.
• Develop and maintain automation scripts using PowerShell, Visual Basic, .NET, C#, or other scripting languages to improve operational efficiency.
• Lead infrastructure implementation projects, system upgrades, migrations, and operational improvement initiatives.
• Coordinate technical activities across multiple departments and project teams.
• Analyze and resolve highly complex infrastructure issues with minimal supervision.
• Ensure compliance with organizational security standards, policies, and applicable federal regulations.
• Maintain accurate documentation of incidents, changes, configurations, and system performance metrics.
• Provide technical mentoring and guidance to junior support personnel when appropriate.
• Perform other duties as assigned.

System Administrator III