Stanley said in an email that although it is too early to start campaigning, "when the appropriate time comes, I intend to be a candidate for mayor of Waltham."
McCarthy announced this February that she will not run for reelection in 2015, which would have been her potential fourth term, citing her parentsí health.
McCarthy said she made the decision after winning the 2011 fall election for mayor, telling a select few about her plans.
In Waltham, a mayoral term lasts four years.
Stanley graduated from Waltham High School, where he played on the school's basketball team. He also holds an associate's degree in business administration from Mass Bay Community College, a bachelor's degree in management from Bentley University, and a master's degree in public administration from Suffolk University.
Stanley currently owns a home in town with his wife and two kids, aged 19 and 10.
He unofficially announced his candidacy via his Twitter account on April 5, after another tweeter asked him on March 20, "are you gonna run for mayor?" Stanley replied, "Thanks for asking. Yes, When the time comes (2015), I will be a candidate for mayor of Waltham."
Jaclyn Reiss can be reached at firstname.lastname@example.org