VMware vSphere Administrator

Quick Facts

• Hands-on VMware vSphere 8 / ESXi 8 administration
• Focus on stability, availability, security, and performance
• On-call support for planned maintenance and critical incidents

Description

Join an international environment focused on maintaining and improving enterprise virtualization infrastructure. You will administer VMware vSphere 8 and ESXi 8 and manage vCenter Server to ensure the stability, availability, security, and performance of critical infrastructure services. The role emphasizes hands-on administration, troubleshooting, automation, and continuous improvement.

Responsibilities

• Administer, maintain, and optimize VMware vSphere 8 and ESXi 8 environments to ensure high availability, stability, and performance
• Manage vCenter Server: clusters, resource pools, permissions, roles, alarms, and infrastructure inventory
• Configure and maintain vSphere HA, DRS, vMotion, and Storage vMotion for resilience and efficient resource utilization
• Manage virtual networking and storage: switches, VLANs, datastores, and storage connectivity
• Perform ESXi deployments, upgrades, patching, and lifecycle management
• Monitor infrastructure performance, investigate incidents, and conduct root-cause analysis
• Support backup, recovery, and disaster recovery processes for virtualized environments
• Implement infrastructure changes and improvements with automation, security, performance, and availability in mind
• Support administration and troubleshooting of Linux/UNIX and Windows Server environments
• Collaborate with infrastructure, network, storage, security, and application teams to resolve technical issues
• Ensure compliance with IT Service Management standards, SLAs, and security requirements
• Participate in on-call support, planned maintenance, and critical incident resolution

Requirements

• Strong hands-on experience administering VMware vSphere 8 and ESXi 8 in enterprise production environments
• Advanced knowledge of vCenter Server (cluster management, permissions, monitoring, lifecycle administration)
• Deep understanding of virtualization technologies (VMs, clusters, resource pools, templates, snapshots, virtual hardware)
• Practical experience with vSphere HA, DRS, vMotion, Storage vMotion, and admission control
• Good knowledge of VMware networking (standard/distributed switches, VLANs, NIC teaming, network troubleshooting)
• Strong understanding of VMware storage (VMFS, NFS, Fibre Channel, iSCSI, multipathing, datastores)
• Experience with ESXi deployment, patching, upgrades, and vSphere Lifecycle Manager
• Strong troubleshooting skills for VM performance, host failures, storage capacity, and network connectivity
• Knowledge of backup, restore, disaster recovery, monitoring, and capacity planning
• Solid Linux/UNIX administration skills, particularly RHEL (Bash scripting, networking, services, patching)
• Good knowledge of Windows Server (Active Directory, DNS, DHCP, Group Policy, PowerShell)
• Experience integrating VMware with enterprise storage, backup, monitoring, and identity-management solutions
• Good understanding of Incident, Problem, and Change Management with SLAs and operational risk
• Experience maintaining and supporting business-critical infrastructure
• Strong analytical, problem-solving, and communication skills
• Very good English (written and spoken)

Nice to Have

• Infrastructure automation and configuration management (PowerCLI, PowerShell, Ansible)
• Familiarity with Jira, Confluence, ServiceNow
• German knowledge

Benefits

• Extended medical care (2000+ medical facilities in Poland, including 80 in Kraków) for you and your family
• Multisport card
• Life insurance