Donald Holtzer

Donald Holtzer currently serves as Principal Systems Engineer at Open Systems Technologies Corporation, a position held since July 2020. Previously, Donald was the Info Security Engineer Manager for Identity Management at Neustar, Inc., where responsibilities included overseeing the IDM Team and managing various security technologies. Donald's extensive experience encompasses roles such as Principal Systems Engineer at Tangible Software, Senior Systems Administrator at Paladin Consulting, and several positions focused on IT and messaging services at NOAA and other organizations. With a background in UNIX systems and LDAP engineering, Donald has also contributed as an adjunct instructor in business technologies and possesses a robust educational foundation in music from prestigious institutions.