Citigroup has hired the head of European operations at the trading technology firm spun out of Goldman Sachs last year for a new role, the latest in a string of recent appointments within the US bank’s equities unit.

Sam Baig joins the bank as head of liquidity strategy after running the European operations of Redi, according to two people familiar with the situation. The technology firm's RediPlus routes orders to a variety of brokers via its trading platform, working across a variety of asset classes.