Marsh & McLennan, a global professional services firm, has appointed Helen Shan as vice president and treasurer, effective April 15. In her new role, Shan will oversee the company's global treasury organization, including capital management, pensions, investments, and cash management.

Shan joins Marsh & McLennan from Pitney Bowes, where she served as vice president and treasurer since 2005 and later served as vice president of finance. Additionally, she became responsible for corporate development and investor relations in 2010.

Prior to Pitney Bowes, Shan spent 11 years at JPMorgan Securities, where she served in a variety of roles including managing director of diversified industries. She began her career as a quantitative analyst and controller at former investment bank Salomon Brothers.