JP Morgan Chase's chief compliance officer has left the nation's largest bank as JP Morgan grapples with a variety of regulatory headaches, lawsuits and investigations, according to a memo reviewed by The Wall Street Journal and people familiar with the move.

Cindy Armine, who was in the post for roughly one year, exited for a position with another company, according to the company memo. The new company wasn't named in the memo, but people familiar with the move expect her to take a job with First Data Corp., the Atlanta payment processor run by former JP Morgan executive Frank Bisignano. A First Data spokeswoman couldn't be reached immediately for comment.