William Blair & Company, the investment banking and asset management firm, has appointed Jon Zindel as chief financial officer, replacing Tim Burke, who is retiring.

Zindel has been in the industry for 20 years and joins from American Century Investments, where he was also CFO.

At William Blair he reports to John Ettelson, president and chief executive.

“Jon's background is well suited to the business complexities of our growing global client base and product offering," said Ettelson.

The firm is based in Chicago and has offices in London, New York, Shanghai, and Zurich, among other cities. It is owned by employees.