Zayo Group Holdings appointed Amanda Tierney as executive vice president of Network Connectivity, a role in which she will be responsible for the wavelengths, Ethernet, IP and SONET Strategic Business Units.
Tierney joins Zayo from Charter Communications where she served as vice president of Commercial Marketing. Prior to Charter, she held leadership positions during her nine-year tenure at Level 3 in customer care, market management, strategy, wholesale and large enterprise.
