Gresham Technologies plc announced the appointment of Khee Joo Tan (KJ) to the company as director of sales for the AP region. KJ will lead business development, direct sales and partnerships to expand Gresham's Clareti platform client base, which already includes major banks and asset managers. KJ previously held roles at Smartstream, Tibco, TCS and FRS Global and holds degrees and post graduate honors from the University of Auckland, the University of New South Wales and the University of Sydney.