Senior Windows ESXi Nutanix Administrator

As a Senior Windows, ESXi and Nutanix Administrator, you will make an impact by managing and supporting enterprise infrastructure environments across Windows Server, VMware, Nutanix, disaster recovery, security, and datacenter operations. You will be responsible for maintaining highly available and secure infrastructure services, driving operational excellence, leading major incident and problem management activities, and supporting infrastructure modernization initiatives. You will collaborate with business stakeholders, technology teams, and vendors to ensure reliable and compliant IT service delivery.

• Administer, configure, patch, monitor, and troubleshoot Windows Server environments.
• Manage Active Directory, Group Policy, DNS, DHCP, SCCM, and SSL certificate services.
• Administer VMware ESXi, vCenter, HA, DRS, vMotion, virtual machine provisioning, and cluster optimization.
• Manage Nutanix AHV and Prism environments, including cluster operations, storage administration, and performance monitoring.
• Support disaster recovery solutions using VMware Site Recovery Manager (SRM), replication technologies, failover/failback activities, and DR testing.
• Monitor and maintain infrastructure security and compliance using Tanium, Qualys, and Crowd Strike.
• Utilize Splunk and Grafana for log analysis, monitoring, dashboard creation, and incident investigations.
• Develop and maintain Power Shell and PowerCLI automation scripts to improve operational efficiency.
• Support ITSM processes through Service Now, including Incident, Change, Problem, Service Request, and Configuration Management.
• Manage software asset and license compliance activities using Flexera.
• Administer Dell, HP, Cisco UCS, and IBM infrastructure hardware, including firmware upgrades, maintenance, and troubleshooting.
• Lead infrastructure transformation initiatives, including datacenter consolidation, platform upgrades, virtualization migrations, and infrastructure refresh projects.
• Coordinate major incident response activities, ensuring effective communication, timely resolution, and service restoration.
• Drive proactive and reactive problem management through root cause analysis, trend identification, and remediation planning.
• Assess operational risks, facilitate change approvals, and ensure successful implementation of infrastructure changes.
• Maintain operational governance standards, SLA compliance, documentation, and continuous service improvement practices.
• Partner with business stakeholders and technical teams to ensure alignment with organizational objectives and service expectations.

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3 days a week in a client or Cognizant office in Newport Beach, CA. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations

• 10 years of experience in Windows Server administration supporting enterprise environments.
• Proficiency with VMware vSphere technologies including ESXi, vCenter, HA, DRS, vMotion, and virtual machine lifecycle management.
• Knowledge of Nutanix AHV and Prism for cluster administration, storage management, and performance optimization.
• Expertise in disaster recovery planning, testing, and execution utilizing VMware Site Recovery Manager (SRM).
• Deep understanding of Active Directory,…