AES Corp., a $17 billion international power company in Arlington, Va., appointed Joel Abramson vice president of investor relations. He replaces Ahmed Pasha, who was named managing director of mergers and acquisitions. Abramson joined AES in 1995 and has worked in mergers and acquisitions and portfolio management. In his new role, he will continue to be responsible for portfolio management.

Discover Financial Services, the Riverwoods, Ill., card issuer with $6.6 billion in 2010 revenue, named R. Mark Graf CFO, chief accounting officer and executive vice president. He replaces Roy Guthrie, who is retiring. Graf, 46, most recently was an investment adviser with New York-based Aquiline Capital Partners, a private equity firm. Earlier, he was a partner at Barrett Ellman Stoddard Capital from 2006 to 2008. He served as CFO at Fifth Third Bank from 2004 to 2006 and as its treasurer from 2001 to 2004.

NewPage Holding Corp., a coated paper manufacturer in Miamisburg, Ohio, named Ronald Arling chief accounting officer and controller. He succeeds Curtis Short, who was named interim CFO in April. Arling, 39, most recently was NewPage’s controller, a position he assumed in November. Earlier, he served as assistant controller and internal audit director. Prior to joining NewPage, Arling was internal audit director at CareSource Management Group and worked at Reynolds & Reynolds, NCR and Deloitte & Touche. NewPage reported sales of $3.6 billion last year.

Marvell Technology Group, a $3.6 billion semiconductor company in Santa Clara, Calif., appointed Sukhi Nagesh vice president of investor relations for one of its units, Marvell Semiconductor. Nagesh, 40, most recently was a semiconductor research analyst at Deutsche Bank. Prior to working there, he was an associate equity analyst at SG Cowen and Fulcrum Partners, a product marketing manager at Applied Materials, and a field sales and applications engineer at Brooks Automation and Asyst Technologies.

Select Comfort Corp., the $606 million bedding retailer based in Minneapolis, named Wendy Schoppert CFO. She replaces Jim Raabe, who is leaving to become CFO at Lindsay Corp. Schoppert, 44, has been the company’s chief information officer since 2008. For three years before that, she was senior vice president in charge of the company’s international business. Schoppert has also served as senior vice president and general manager of new channel development and strategy. Prior to joining Select Comfort in 2005, she worked at U.S. Bancorp Asset Management and in the airline industry.

Advance America, Cash Advance Centers, a Spartanburg, S.C., company that provides short-term credit, named James Ovenden CFO and executive vice president. He succeeds Patrick O’Shaughnessy, who was promoted to CEO in March. Ovenden, 48, was a principal consultant with CFO Solutions of SC, a financial consulting company, since 2002, serving as CFO for companies including AstenJohnson Holdings and Extended Stay America. Earlier, Ovenden was CFO at CMI Industries. He began his career with Peat Marwick in 1984.

CAI International, a freight container leasing and management company in San Francisco, named Timothy Page CFO. He replaces interim CFO Gary Sawka, who will stay on as a board member. Page, 59, had been CFO of Port Logistics Group, a logistics services company, since 2008. Earlier, he served as CFO of Quality Distribution and Perry Ellis International. CAI had 2010 revenue of $78 million.