Janke is based in New York and brings more than 20 years of finance expertise. He was Blackstone's first Asia chief financial officer, Xen said in a statement.

Most recently, Janke was senior vice president at State Street Corporation, leading finance teams analysing trends in relationships across the managers and owners of more than $30 trillion of assets under custody and/or administration at the bank. As the Hong Kong-based CFO of Asia for Blackstone, Janke was responsible for the finance, tax, regulatory reporting and control infrastructure. Janke began his time in Hong Kong working on Merrill Lynch’s efforts to expand its principal investing platform across Asia and, after the financial crisis, was responsible for supporting the liquidation of Bank of America’s principal investments around the region.

He joined Deloitte & Touche’s international tax practice in Chicago after graduating from Marquette University in Milwaukee. He passed the Certified Public Accountant examination in Illinois and served a wide variety of clients in complex financial litigation matters as part of Deloitte’s Financial Advisory Services practice before relocating to New York City in 2004.

Xen was launched in 2018. In the past six months, Xen has appointed Yong Hak Huh, former CIO of Hong Kong Monetary Authority, and Bernard Phang, former Managing Director of GIC, to its Advisory Board.