Investing.com - Goldman Sachs (NYSE:GS) has taken another step into the world of cryptocurrencies.The Wall Street firm has hired a former crypto trader to head its digital asset markets unit, as part of the firm's efforts to help clients interested in cryptocurrencies.Goldman said it the new unit is in response to "investor interest" and that it is "exploring how best to serve them". The firm said the new hire is Justin Schmidt, who formerly worked at Seven Eight Capital. LMR Partners and WorldQuant, according to his LinkenIn page. Goldman's first move into the crypto space was clearing trades for some clients dealing in Bitcoin futures on the CBOE and CME exchanges.The firm said it has not reached a "conclusion on the scope of our digital asset offering."