System Administrator III

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Quivera Enterprises, LLC is seeking an experienced Information Technology Specialist III / System Administrator III to provide advanced operational and infrastructure support for a mission‑critical enterprise datacenter environment supporting the Indian Health Service (IHS). This position serves as a senior technical resource responsible for maintaining the availability, security, and performance of enterprise systems across Microsoft Windows, Linux, and VMware environments.

The Information Technology Specialist III / System Administrator III functions 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. The ideal candidate possesses strong systems administration experience, exceptional troubleshooting skills, and the ability to independently manage complex technical projects while ensuring operational excellence and customer satisfaction.

• 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 Power Shell, 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.
• Serve as a Subject Matter Expert (SME) for enterprise datacenter technologies, infrastructure standards, and operational best practices.
• Participate in system maintenance windows, scheduled upgrades, and emergency response activities as required.
• 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.

• Bachelor's degree in Information Technology, Computer Science, Engineering, or a related technical discipline, or an equivalent combination of education and experience.
• Minimum of five (5) years of progressively responsible experience administering enterprise server infrastructure.
• Extensive experience supporting enterprise datacenter operations.
• Strong knowledge of Microsoft Windows Server operating systems.
• Strong knowledge of Linux operating systems.
• Hands‑on experience administering VMware virtualization environments.
• Experience supporting enterprise backup and recovery operations.
• Knowledge of Data Center Infrastructure Management (DCIM) platforms.
• Experience supporting physical datacenter monitoring and security systems.
• Ability to develop scripts utilizing Power Shell, Visual Basic, .NET, C#, or similar scripting languages.
• Strong analytical, troubleshooting, and problem‑solving…