Massachusetts Mutual Life Insurance Company (MassMutual) has made three executive promotions.

The company said Michael McKenzie is responsible for retirement services operations for all recordkeeping processes and delivery of services for MassMutual’s Retirement Services division.

McKenzie joined MassMutual in 2007 and has oversight of the division’s new business implementation, ongoing account management, plan change processing, ERISA consulting services, and Participant Information Center.

Scott Reed, who joined MassMutual in 2000, is accountable for the business and technology solutions team in the company’s US Insurance Group, which provides and operates all technology and systems for MassMutual’s suite of protection and accumulation products.

Heather Smiley, who joined MassMutual in 2009, is responsible for retirement services marketing for MassMutual’s Retirement Services division which includes plan sponsor communication consulting services, advertising and public relations, web portals and tools, market research, competitive intelligence and employee communications.