Principal Financial Group Inc. this morning announced the promotion of two of its executives, Angela Sanders and Roberto Walker, to the senior vice president level. Sanders, the company's controller, joined Principal in 1989 as a staff accountant. She most recently served as vice president and continues her role as controller in the corporate accounting department. Sanders earned bachelor's and master's degrees in accounting from the University of Iowa and is a certified public accountant. Walker, who will continue in his role as president of Principal International Latin America, joined Principal International in 1996 and is based in Santiago, Chile. He has held several roles including chief operating officer of Principal International Latin America, country head of Principal Mexico and chief investment officer and chief financial officer of Principal Chile.