TIBCO Software (TIBX.DL) is about to lose its top financial executive. CFO Sydney Carey will leave the company to work for a privately held technology firm, whose name was not disclosed. She will stay through April 19, and will certify TIBCO's Q1 2013 results.

She will be replaced on an interim basis by COO Murray Rode, who was the company's CFO from late 2005 through 2008. TIBCO plans to find a permanent replacement.

In the press release announcing the change, Carey says that "while I believe TIBCO has a very bright future, I look forward to this new and different challenge of growing a private, pre-IPO company."