Senior VMware vSphere Administrator for Enterprise Environments

Vertex Agility; Kraków; On-site; PLN 180,000 - 280,000; Full time

Job summary

Vertex Agility seeks an experienced VMware vSphere Administrator to maintain and optimize large-scale virtualization across Europe. You will manage vSphere 8/ESXi 8, vCenter, and related components in production environments, ensuring high availability, security, and performance.

Responsibilities include configuring VMs, clusters, and storage, managing HA/DRS and vMotion, plus troubleshooting incidents and coordinating with network and storage teams.

Qualifications

• Minimum 5 years of relevant VMware administration or infrastructure engineering.
• Strong hands-on experience with VMware vSphere 8 and ESXi 8 in enterprise production environments.
• Extensive knowledge of vCenter Server administration, cluster configuration, permissions, roles, alarms, and lifecycle management.
• Strong understanding of vSphere HA, DRS, vMotion, Storage vMotion, and admission control.
• Experience with VMware networking, including distributed switches, port groups, VLANs, NIC teaming, and network troubleshooting.
• Strong knowledge of virtualisation storage technologies, including VMFS, NFS, Fibre Channel, iSCSI, multipathing, and datastore management.
• Experience with ESXi host lifecycle management, upgrades, patching, compliance, and vSphere Lifecycle Manager.
• Strong troubleshooting skills and experience conducting root-cause analysis of infrastructure incidents.
• Good knowledge of backup, restore, disaster recovery, monitoring, capacity planning, and performance optimisation.
• Solid UNIX/Linux administration skills, preferably RHEL, including filesystems, services, networking, logging, patching, and Bash scripting.
• Solid Windows Server administration knowledge, including Active Directory, DNS, DHCP, Group Policy, PowerShell, Windows services, and event log analysis.
• Experience integrating VMware environments with enterprise storage, backup, monitoring, identity, and network management platforms.
• Understanding of incident, problem, and change management processes, operational risk, and SLAs.
• Excellent communication and collaboration skills.
• Very good written and spoken English.

Responsibilities

• Maintain the stability, availability, integrity, and performance of VMware infrastructure.
• Administer VMware vSphere 8, ESXi 8, and vCenter Server in enterprise production environments.
• Configure and manage virtual machines, clusters, resource pools, templates, snapshots, and virtual hardware.
• Manage vSphere High Availability (HA), Distributed Resource Scheduler (DRS), vMotion, Storage vMotion, and admission control.
• Perform ESXi host deployment, configuration, upgrades, patching, firmware coordination, and compliance management.
• Manage VMware networking, including standard and distributed switches, port groups, VLANs, NIC teaming, and uplinks.
• Administer VMware storage, including VMFS, NFS, Fibre Channel, iSCSI, multipathing, and datastores.
• Monitor infrastructure performance, capacity, and availability, and proactively identify potential issues.
• Troubleshoot and resolve infrastructure incidents involving host failures, VM performance, storage capacity, network connectivity, and hardware.
• Support backup, restore, disaster recovery, and infrastructure recovery activities.
• Implement infrastructure changes, upgrades, and maintenance activities in line with operational standards and security requirements.
• Identify opportunities to automate infrastructure deployment, testing, configuration, and maintenance.
• Support incident, problem, and change management processes in accordance with SLAs.
• Collaborate with network, storage, security, application, and service management teams to resolve complex technical issues.
• Participate in the on-call rotation after completing the initial training period.

Skills

VMware vSphere 8

ESXi 8

vCenter Server

HA/DRS/vMotion

Networking (distributed switches, VLAN

VMFS/NFS/iSCSI

Linux administration

Windows Server administration

Troubleshooting/root-cause

Backup/DR/Monitoring

English communication

Cross-functional collaboration

Tools

Jira

Confluence

ServiceNow

Job description

Vertex Agility seeks an experienced VMware vSphere Administrator to maintain and optimize large-scale virtualization across Europe. You will manage vSphere 8/ESXi 8, vCenter, and related components in production environments, ensuring high availability, security, and performance.

Responsibilities include configuring VMs, clusters, and storage, managing HA/DRS and vMotion, plus troubleshooting incidents and coordinating with network and storage teams.