A former co-founder and chief technology officer at Starling Bank has launched a new cryptocurrency venture — becoming the latest of several former executives at the digital bank to go it alone.

Mark Hipperson, who left Starling in the summer of 2016, has been working on the new venture, named Ziglu, since late 2018, and is planning a public launch for January. Ziglu is an app that lets customers transfer funds between conventional money and cryptocurrencies.