Jahna Yamagishi

Jahna Yamagishi currently serves as the Head of Service Assurance for Managed Services at Zayo Group, starting in September 2024. Prior to this role, Jahna held the position of Senior Director of Support, Network Operations and Customer Experience at Faction from January 2020 to November 2024, where leadership of Net Promoter Score (NPS) and lifecycle management initiatives was a key responsibility. Previously, Jahna was the Director of Technical Services Center at Lumen Technologies from January 2011 to January 2020, managing customer and network monitoring and repair teams. Jahna also worked as Network Operations Manager at Open Range Communications from September 2009 to January 2011, contributing to the deployment of a 4G WiMax network, and served diverse roles at Verizon Business from May 2000 to September 2009, including Training and Quality Assurance Manager. Academic achievements include an MBA from the University of Colorado Denver, a BS in Management and Economics from the University of Nebraska-Lincoln, and certifications in Six Sigma and Lean Six Sigma from Villanova University.