Alexandre Kech, director of blockchain and digital assets at Citi Ventures, is leaving the U.S. bank to take a role at Six Digital Exchange, according to his LinkedIn page.

Six Digital Exchange is a Swiss digital asset exchange that offers trading, settlement and custody of crypto assets.

Kech announced his departure from Citi earlier this week, saying that he was starting a "new exciting challenge in November."

A Six representative has confirmed his hiring but didn't comment further, according to Bloomberg, which first reported the news.

Kech will be following Citigroup's head of foreign exchange Itay Tuchman, whose departure was announced in August, with reports that he would be moving to a digital-asset firm. Tuchman was central to the bank's exploration of digital assets in recent years.

The two departures reflect a trend of banking executives moving into the world of crypto. In June, three JPMorgan (JPM) executives departed to join crypto firms. The following month, Galaxy Digital appointed former Credit Suisse (CS) managing director Danielle Johnson to oversee sales and product strategy for institutional investors.

Kech and Six didn't immediately respond to requests for comment.

Read more: Citigroup Furthers Crypto Push With Two Digital-Asset Hires