Experience
Dec 2023 - Present
1 year 8 months
- Operated and managed ca. 800 server VMs and lifecycle/asset management of ca. 40 Lenovo ESXi hosts
- Upgraded all clusters to ESXi/VCSA 7.0U3 and 8, planned patch management for all hosts
- Cleaned up Active Directory by consolidating multiple domains into the main environment; planned and executed migration
- Reviewed and migrated Veeam configuration to newer virtual infrastructure to streamline performance
- Performed VMware upgrades, updates, and general maintenance
- Conducted Proxmox POC to evaluate as a VMware alternative
- Documented Veeam, VMware, and storage environments
- Implemented uniflow Cloud solution
- Migrated NetApp storage to new system; maintained CIFS and administered SVMs
Feb 2023 - Oct 2023
9 months
- Operated and managed ca. 500 server VMs and lifecycle/asset management of ca. 30 HPE/DELL ESXi hosts
- Upgraded all clusters to ESXi/VCSA 7.0U3 and 8, planned patch management for all hosts
- Adjusted NetApp volumes during migration from NFS to iSCSI
- Converted VMware datastores from NFS to iSCSI
- Integrated Veeam at various new sites and documented configuration
Aug 2022 - Feb 2023
7 months
- Administered and upgraded 200 server VMs in a global enterprise environment (~190,000 employees)
- Managed 15 Dell ESXi hosts of various versions; upgraded all clusters to the latest version and planned patch management
- Built and maintained NetApp clusters (AFF A220, various FAS, E-Series)
- Operated and configured Commvault and SnapCenter
- Performed vulnerability management
- Modified NetApp StorageGrid setup across multiple sites, added storage nodes, and updated rule sets
- Executed data center relocation
Sep 2021 - Jun 2022
10 months
- Administered 600 server VMs and managed 50 HPE ESXi hosts; upgraded all clusters to the current version and planned lifecycle management
- Maintained Active Directory, restructured OUs, automated processes, and integrated additional solutions
- Integrated acquired companies’ ADs and documented changes
- Built and maintained NetApp clusters (AFF A300 & A400)
- Supported various backup solutions (Commvault, Veeam)
Feb 2019 - Aug 2021
2 years 7 months
Led technical VMware upgrade project for 150 hosts and clusters to v6.7 with VCSA migration, followed by upgrade to v7 for Kubernetes support
Defined vSphere/ESXi role concepts
Cleaned up Active Directory GPOs and OUs
Upgraded and migrated MS Server landscape to 2016/2019; ongoing operation
Administered 120 Cisco UCS and Fujitsu ESXi hosts and 1,200 server VMs, plus ca. 3,000 Citrix VPC clients
Planned and implemented vCenter HA
Operated backup solutions (Veeam & Networker)
Created, applied, and documented new OU/GPO structures for AD DS
Performed continuous MS Server upgrades
Migrated Vsphere/ESXi from 5.5/6.0 to 6.7/7; migrated VCSA to 6.7 U2 and to 7 in 2021
Managed EMC, IBM, and Pure Storage
Set up ADFS
Implemented new VDI cluster (Cisco UCS & FC Pure Storage)