Sissens, who spent nearly two years as CEO, will continue working with RTGS.global in an advisory capacity.He is replaced on an interim basis by Hubble, who has been the firm’s chief commercial officer for the last year and has previously worked at Trade Ledger and NatWest Markets.Separately, from March the company’s board will be joined by Phil Kenworthy, former CEO of the UK’s high-value payment system, Chaps.