Cisco , Microsoft certifications (MCSE,CCNA, CCNP for example)
network administrator and network infrastructure
virtualization, cloud technologies, Azure, software defined infrastructure and Load balancing
Microsoft products (Exchange 365, skype for business ,SQL ,..etc.) troubleshooting, Upgrading and updating.
virtualized environments (VMWare), Provided assistance in designing, evaluating, and configuring server virtualization infrastructure utilizing VMware.
Firewall devices such as Palo Alto, FortiGate or Cisco ASA.