Kowalsky, 46, had spent the past eight seasons as head coach of the Devils’ AHL affiliates in Albany (2010-17) and Binghamton (2017-18), posting a record of 281-286-45 in 612 regular-season games.
He also guided the AHL Devils to three Calder Cup Playoffs appearances, in 2014, 2016 and 2017. In 2015-16, Kowalsky earned the Louis A.R. Pieri Award as the AHL’s outstanding coach.
Kowalsky will join assistant coaches Alain Nasreddine and Mike Grier and goaltending coach Roland Melanson on New Jersey Devils head coach John Hynes’ staff.