Complex sentence: A year later, he joined the Metropolitan Hotel Toronto and Hemispheres Restaurant and Bistro as executive chef where he oversaw the Metropolitan's culinary program, including banquets, in-room dining and the restaurant.
Split into simpler sentences: A year later, he joined the Metropolitan Hotel Toronto and Hemispheres Restaurant & Bistro as executive chef. Here, Lin was responsible for overseeing all aspects of the Metropolitan's culinary program, including banquets, in-room dining and the restaurant.