David is the former CEO and Chairman of UK payment infrastructure Vocalink. He joined Quant’s board of directors in October 2024.

David has more than three decades of leadership experience in payments and financial technology. After serving as chief executive of Vocalink between 2012 and 2017, where he led its transformation from a domestic, bank-owned infrastructure company into a competitive international business, David successfully negotiated Vocalink’s sale to Mastercard. He then served as president of Mastercard’s New Payment Platforms.

David was earlier President at Western Union and First Data. He has served on the boards of WorldPay, Concardis, Equiniti, NIUM and eNett. He also worked as Operating Partner for Advent International, Temasek and Siris Capital.