• Designing and implementing IP addressing and VLANs • Virtualizing servers using Hyper-V and ESXi.• Set up and maintained SIP Trunking (Issabel PBX).• Implementing and managing firewall systems for security.• Configuring and managing VPN services.• Setting up and maintaining all Windows Server 2016 and 2019 Roles.• Implementing and managing a backup system for data protection (Veeam).• Designing and implementing a system for online video advertisement playback on over 250 TV screens in 34 locations.

• Designed and implemented wireless network infrastructure for indoor and outdoor areas of the university.• Managed over 25,000 users with up to 10,000 online at once.• Managed over 300 enterprise access points with controllers.(cisco , unifi)

• Set up LAN and WAN network infrastructure for over 40 branches with 2000 users across the country.• Configured switching and routing (CISCO , MikroTik).• Virtualized servers using Hyper-V, ESXi and KVM.• Implemented and maintained ASA, Pfsense and Kerio Control firewalls.• Managed over 70 help desk technicians.• Set up and maintained SIP Trunking (CUCM , FreePBX ).• Configured and managed Active Directory, DHCP, DNS, Wins, WSUS, Microsoft Exchange Service and Skype For Business Services on Windows Server 2008 and 2012.