Stephen Scanlon was named head of retirement plan services at AXA U.S., a spokesman said in an email.
He replaces Kevin Molloy, who was named head of investor relations.
Mr. Scanlon, who started Monday, oversees the firm's 403(b), 401(k) and 457 retirement businesses, which have more than $29 billion in assets under management. He will report to Brian Winikoff, senior executive vice president and head of U.S. life, retirement and management for AXA U.S.
Previously, Mr. Scanlon was co-founder of financial technology startup GuardVest. Before that, he held positions at AllianceBernstein (AB), a unit of AXA, including head of global sales for AllianceBernstein defined contribution and managing director for Bernstein Global Wealth Management.
Along with financial protection and wealth management products, AXA U.S. provides advice and retirement strategies such as annuities, employee benefits and life insurance, the spokesman wrote.