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David A. has extensive experience in network engineering and management, with a career spanning several decades in the telecommunications industry. Currently serving as a Network Control Engineer at Powertel from October 2005, David A. has been involved in network management within a 24 x 7 Network Operations environment. Prior to this role, David A. worked as a Network Engineer at Optus, focusing on SDH network configuration, and held similar positions at AT&T and BT, Concert, where responsibilities included network management in 24 x 7 settings. Earlier in the career, David A. provided second-level hardware support for mini/mainframe computers at Pyramid Technology from September 1984 to May 1992.