George Popescu Email & Phone Number

• Designed, installed and maintained large Enterprise Storage Systems such as 3PAR Fiber Channel 8200, MSA 2060 iSCSI, NetApp, Dell EqualLogic and Compellent Multi-tier SANs. Perform quarterly OS upgrades and patches, monitor monthly performance in terms of IOPS, Read and Write Latency to ensure systems are running efficiently under heavy load.• Built from scratch a new Private Cloud Datacenter in Cyxtera Markham facility. Installed new FC 3PAR SANs with High Performance ESXi hosts that hosted over 1000+ Windows and Linux VMware VMs and migrated them from on-prem datacenter using storage replication with VMware SRM and VRA (VMware Replication Appliance)• Managed, upgraded, and enhanced SolarWinds Server, Network, and Storage Alerts, incorporating NetFlow for comprehensive network traffic insights.Architected, implemented, migrated and maintained large High Availability Microsoft DHCP Server cluster for over 300+ DHCP scopes for our multiple locations across Canada.• Designed, implemented and maintained SQL Always-on Availability Groups databases to provide high availability database services to critical workloads and disaster recovery between SQL servers.• Improved old SCCM patching solution using complex WSUS configuration for our PROD, DEV, QA, STAGE, Clustered Microsoft Windows 2012, 2016, 2019, 2022 servers.• Utilized Qualys to identify server and software security vulnerabilities and perform remediation• Created Visio Diagrams and PowerPoint documentation on large infrastructure and security projects• Redesigned our File and Print Servers to include automatic file archival for older files.• Optimized our current server backup policies, retentions and schedules to reduce local enterprise storage cost and off-site backup tapes as well as improve backup performance for existing backup jobs.

Toronto, Canada Area

• Designed and built IT projects, steering cloud configurations and services towards industry-leading security.• Installed and maintained over 60 Citrix XenApp servers farm with over 180 applications• Initiated major migration project for SCCM 2007 to 2012. Over 27,000+ clients deployed all across the globe, covering APAC, EMEA, USAE and USAW regions• Redesigned large and complex Active Directory structure (over 80 sites), GPOs and WSUS update procedure to proper fit the current business needs• Provided Autodesk with expert options on new and emerging technologies like VDI and Oracle Xsigo• Led large scale VMware upgrade project with over 5,000 VM servers, 10 vCenters and 600 ESX Hosts• Involved in Service-now Asset and Configuration Management project to help the company have a better visibility over the IT assets, financial data, system refreshes, and warranty renewals• Supported and maintained over 5,000 servers in a complex mixed environment of Windows and Linux within 10 datacenters across the globe• Utilized HP SIM to proactively maintained and managed HP servers across our global datacenters• Used Quest Active Role Server for RBAC security model and advanced Active Directory features• Worked with over 10 Oracle Xsigo Directors to support our virtualized network and storage media for the VMware ESX servers, Windows and Linux physical servers• Utilized diverse SAN solutions for our storage needs: FC, NAS, ISCSI from vendors like Netapp, HP 3PAR, Tintri, EMC and Dell Compellent• Used SCCM 2007, 2012 R2 for package deployment to custom made server collections, created custom SCCM 2007 and 2012 and SQL reports• Detected vulnerabilities on all network assets including servers, network devices (routers, switches, firewalls) and workstations using Qualys• Utilized MFA, SSO, Active Directory Federation Services, Implemented automation processes using scripting languages like PowerShell or Bash.

Toronto, Canada Area

• Integrated “Arizona AFO” network to our head office domain, migrated Active Directory users accounts, Exchange mailboxes, Security groups, GPOs, Print Servers, Network mappings and Folder Redirection for user's personal files• Migrated VMware vSphere 4 Infrastructure to vSphere 5 High Availability clusters, upgrading ESX hosts,datastores from VMFS 3 to VMFS 5• Replaced Dell Equalogic ISCSI and RS16 SAN with NetAPP FAS2448 Fibre Channel SAN 8 Gbps per port. Use Brocade HBA, Brocade FC Switches 300• Implemented cost effective storage efficiency features from NetApp’s SAN as Data Deduplication and Compression• Designed, deployed and managed Microsoft Windows servers, Microsoft Exchange Servers, DNS, DHCP and SQL instances• Maintained FreePBX with only SIP trunks for inbound/outbound, iSymphony, Call Center Stats from Asternic. AASTRA 6757i Voice over IP Phones• Managed 60+ Managed Dell Power Connect Switches, including PoE, ISCSI QoS and multiple VLANS• Troubleshooted advanced MPIO, IOPS, High Latency of ISCSI performance problems related to Dell Equal Logic SANs and RS16 ISCSI with VMware vSphere• Fixed complex issues related to AD sites and services, replication of DCs over site to site and IPSEC VPN Tunnel• Provided high uptime for 400+ Virtual Servers in VMware vSphere across multiple datacenters• Utilized AD, LDAP, DNS, DHCP, WSUS, FTP, IIS, Group Policy, VPN, Hyper-V, DFS File Servers and iSCSI NAS• Maintained and upgraded multiple Astaro Security Gateways, Anti-Spam proxy, Web Filtering Proxy, IPSEC VPN Tunnel, Firewall and NAT• Designed and implemented complex file servers and DFS namespace and replication, folder redirection, roaming profiles and offline lines, SYNC center for both desktops and laptops