A person familiar with the search said Wednesday that DeBoer will be formally introduced at a news conference Thursday. The person spoke on condition of anonymity because the team had not announced the hire yet.
The decision to hire DeBoer ends a lengthy search that started April 20 when the team and McLellan announced that he would not be back for an eighth season in San Jose. The departure was announced as a mutual agreement and McLellan was later hired as head coach in Edmonton.
After three seasons without making the playoffs in Florida, DeBoer was fired by the Panthers following the 2010-11 season.
He took over the Devils in 2011-12 and led New Jersey to the
DeBoer most recently served as an assistant to McLellan at the world championships, where Team Canada won the title.