Expert understanding of Network Services, DNS, DHCP, ISC BIND, NTP and TCP/IP 5-10 years Designing/Build/Migration experience of complex DDI systems in enterprise environments Experience architecting, implementing, and configuring OEM platforms such as InfoBlox, BlueCat or VitalQIP is a plus Experience with Microsoft DDI and Open-source DDI (ISC BIND and ISC DNS, etc.) Desired Proven experience planning and executing migrations to or from any of the various DDI OEM platforms Perl and Python scripting is desired Knowledge of switches, routers, load balancers and firewalls and their interactions with DDI is a must Network Operating Systems: MS Active Directory, Linux, UNIX, etc.