A Charlestown attorney who has served as City Councillor At-Large John Connolly’s chief strategist will be taking on the role of campaign manager of Connolly’s mayoral bid, the campaign said Monday. Nathaniel Stinnett, 37, has worked on a number of campaigns, including as treasurer for Attorney General Martha Coakley’s run for U.S. Senate and as finance director of Jamie Eldridge’s runs for Congress and state Senate.

Stinnett, a former Democratic State Committee member, has taught Adult Basic Education and English for Speakers of Other Languages at Pine Street Inn.

He has served as Connolly’s chief strategist since 2008.

Connolly announced last month he’s running for mayor, setting up a potential battle with incumbent Mayor Thomas Menino, who has not yet said publicly whether he is running for a sixth term.

Connolly’s campaign kickoff is scheduled for next week. The rally is set for the Omni Parker House Hotel on Wednesday, March 20 at 6:30 p.m.