He is currently playing for the Schwenninger Wild Wings of the German top flight Deutsche Eishockey Liga (DEL).

Sonnenburg played for OHL teams Belleville Bulls[1] and Brampton Battalion[2] before enrolling at the University of Waterloo in 2007.

In 2011, he represented Team Canada at the World University Games in Erzurum, Turkey, winning bronze.

[6] He first signed with Krefeld Pinguine of the German top flight Deutsche Eishockey Liga (DEL) in 2011 and spent six years with the club.

He left Krefeld at the conclusion of the 2016–17 campaign and agreed to terms with fellow DEL side Schwenninger Wild Wings.