Gary Doer, a former Manitoba premier and Canadian ambassador to the United States, is joining the Toronto office of the global law firm Dentons.

The firm says in a release that Doer will be senior business adviser and will work with clients on Canada-U.S. trans-border matters, as well as global public policy initiatives.

Doer was premier of Manitoba from 1999 to 2009 and led the NDP to three consecutive majority governments.

He served as ambassador from October 2009 to March of this year.

Chris Pinnington, CEO of Dentons Canada, says in a statement that Doer's experience and widely-respected stature in public service, in government and with cross-border diplomatic and business relations in North America, will be "invaluable" to clients.

Doer joins a number of former political figures who now work at Dentons, including former prime minister Jean Chretien, who joined the firm in 2014.