In 1988 Dave was a founder member of CAT (Pty) Ltd, a tech company developing communications encryption equipment and Hardware Security Modules for both the Payments and Government sectors. After the sale of the company to Comparex Ltd, Dave became a director of Nanoteq (Pty) Ltd, where he ran various divisions which developed products and solutions for the global payments/security market. The customer base included companies such as Commerzbank, Deutschebank, ABSA Bank, Standard Bank, Deutsche Telekom and Mosaic Postillion.
Subsequently Dave became Managing Director of Prism Secure Solutions, and then Director of Engineering for the Prism group. Prism developed payment and communications products including GSM Sim cards, SMSC’s, and Outside Payment Terminals. The company provided solutions and product locally and internationally with customers including BP, Shell, Caltex, Petronas, Telekom Malaysia, MTN, Vodacom and Smartcom.
In 2002 Dave started RedPay, a consulting company specialising in Payments and Payment security. Amongst many projects in the payments sector RedPay developed the security solution for the South African National Payments System. Dave moved to New Zealand in 2005 to join Cadmus Ltd as CTO and has been living in New Zealand and Malaysia since then.