Specialty Infrastructure engineering includes updating hardware required for maintenance of cloud, network, and telecommunication and any connectivity issues that could crop up, detecting system and application issues, and ensuring the smooth flow of data and voice throughout the organization. Keywords: Network Engineer, CCNA, CCNP, Cisco ISE, Cisco Firewall, Fortinet Firewall, Cisco Wireless, Juniper Mist Wireless, Juniper Router, Nexus switching, Nexus .