New hires, retirements, and promotions at Bank of America, Marshall & Ilsley Corp., NOVA Information Systems, and Mall Networks.

Tim Arnoult, Bank of America’s long-time Global Treasury Services executive, is retiring effective the end of April, and will be succeeded by Cathy Bessant, who’s been Global Marketing executive since 2002. Anne Finucane replaces Bessant. (Contact: Bank of America, 704-386-4343)

Jeff Bussgang joined the board of Mall Networks, which recently closed a first funding round led by IDG Ventures Boston. Bussgang is a general partner at IDG Ventures. Mall Networks didn’t say how much money it raised in the round. (Contact: IDG Ventures, 617-534-1228; Mall Networks. 608-225-5476)

Christopher S. Kenyon was named executive vice president and general manager of NOVA Information Systems’ First Horizon Merchant Services unit. Kenyon was previously First Horizon’s chief information officer. NOVA is wholly owned by US Bancorp. (Contact: NOVA Information Systems, 678-731-5064)

Michael C. Smith was hired by Marshall & Ilsley Corp. as its senior vice president and corporate treasurer. Smith joins M&I from American International Group, where he was treasurer of the consumer finance group. (Contact: Marshall & Ilsley Corp., 414-765-7831)