Hiller joins the Islanders after spending the past four seasons as an Assistant Coach with the Toronto Maple Leafs. Prior to his time with the Maple Leafs, Hiller served as an Assistant Coach with the Detroit Red Wings during the 2014-15 season.

The Port Alberni, BC native coached for 10 years in the Western Hockey League. Hiller was the Head Coach of the WHL's Tri-City Americans from 2009-14. In 360 regular-season games with Tri-City, Hiller compiled a 210-124-11-15 record, leading the team to four playoff berths, two U.S. Division titles and an appearance in the WHL Finals in 2010. In 2011-12, Hiller was named the WHL's Coach of the Year, and also received the Brian Kilrea Coach of the Year Award as the top coach in the Canadian Hockey League after leading the Americans to a 50-18-2-2 record. Hiller also spent two years as an Assistant Coach in Tri-City (2002-04) before taking his first head coaching job in the BCHL with the Alberni Valley Bulldogs in 2005-06. Hiller compiled a 43-12-2 record in his lone season with Alberni Valley before spending the following three seasons with the WHL's Chilliwack Bruins.

As a player, Hiller was drafted in the 10th round (207th overall) of the 1989 NHL Entry Draft by the Los Angeles Kings. He appeared in 63 career NHL games with the Red Wings, Kings and New York Rangers from 1992-94. He scored 20 points (eight goals, 12 assists). Hiller also played in the IHL with the Phoenix Roadrunners and Atlanta Knights, as well as in the AHL with the Binghamton Rangers before finishing his playing career in Europe. Prior to turning pro, he played three seasons with the Northern Michigan Wildcats, scoring 205 points (76 goals, 129 assists) in 123 collegiate games from 1989-92.