Chappuis began his playing career with hometown club FC Kloten but soon moved on to SC YF Juventus, spending some time in their youth ranks.

He was on the move again though as Swiss Super League side Grasshopper Club snapped up the promising midfielder in July 2003.

Chappuis returned to Grasshopper at the end of the term and was immediately loan out again, this time to FC Lugano for the duration of the 2012–2013 season.

for the 2015 season, joining the likes of Jakkaphan Pornsai along with his former Buriram teammates Carmelo Gonzalez and Pratum Chuthong.

[5] Chappuis made his league return on 8 May 2016 coming on as a substitute in the 80th minute for goalscorer Carmelo in a 1–0 win over Army United.

In 2009, he was part of the Swiss under-17 team that won the 2009 FIFA U-17 World Cup that defeated the host nation Nigeria 1–0 in the final, featuring in all seven matches at the tournament.

[2] Chappuis was called up by Thailand's ex-coach Winfried Schäfer to play against Lebanon for the 2015 AFC Asian Cup qualification phase.

[9] In the second leg of the final, Thailand lost 3-2 but still won overall with Chappuis finding the net yet again after the Malaysian goalkeeper parried Sarach Yooyen's free kick into his path.