This document provides a summary of John Elza's experience in operations roles over 20 years. It includes his contact information and an overview of his skills and qualifications, followed by descriptions of his roles and responsibilities in change control, network operations, help desk management, and other areas for various employers like T-Mobile, MetroPCS, Securus Technologies, and others. His experience includes writing policies and procedures, managing NOCs, help desks, change advisory boards, and leading teams in network implementations, maintenance, and issue resolution.