This summary is for Dale Callender, an advanced systems administrator with over 15 years of experience supporting medium to large businesses. He has extensive experience managing active directory services, print queues, backups, ticket management, and more. His certifications include Certified Novell Administrator 5, MCP Windows 2000, CompTIA Security+, and an active Top Secret clearance. His most recent role was as an advanced systems administrator from 2014-2015 where he supported the Pentagon, Boling, and Andrews Air Force bases.