David O'Brien

David O'Brien is an experienced professional in the telecommunications industry, currently serving as Implementation Manager at ESI Hosted Services since January 2016. Prior to this, David worked as a Provisioning Engineer at the same company from April 2013 to January 2016, where responsibilities included designing, installing, and maintaining circuits, as well as managing the provisioning of supplies and monitoring order accuracy. David's career at Estech Systems, Inc. spanned from May 1995 to April 2013, during which time roles included Technical Support Manager and IP Field Sales Engineer, highlighting a solid background in technical support and sales engineering.