Amazon.com ( AMZN) named Thomas J. Szkutak the company's new senior vice president and chief financial officer. Szkutak is currently the CFO at General Electric's ( GE) lighting division. Amazon expects Szkutak to start in mid-September. The online bookseller's former financial chief, Warren Jenson, announced his departure in March, but he stayed on with the company for a few months to help recruit a new CFO. Shares of Amazon were down 35 cents to $14.82 in early trading on the Nasdaq.