I have a long time experience with supporting and building world wide distributed AD networks
(about 30 offices around the world with several Datacenters)
with a tons of MS windows servers and clients(Windows, Linux, AIX, Solaris).
Troubleshooting of all MS core services (DNS, AD, CA, NPS, GPO, Print servers, DHCP, WSUS etc...).
A good knowledge of VMware vCenter virtualization and clustering.
A good knowledge of implementing and support multi-node System Center Configuration Manager and Operation Manager products.
All kinds of automated scripts in Powershell and VBS for Infrastructure was written by myself.
I can provide fast and qualitatively support of any problems that can happen.