In 1983 he moved across town to join FC Winterthur's first team and signed his first professional contract for the 1983–84 Nationalliga A season.
From an early point in his career with YB, Zuffi showed tremendous skill and helped the team to win the Swiss Football Championship that season, personally scoring 15 goals.
In the 1988–89 season, he was joint second on the Top Scorers list with Kubilay Türkyılmaz (Bellinzona) both with 19 goals, Karl-Heinz Rummenigge (Servette FC) won the title.
[3] The following season, Zuffi moved home to the town of Oberwil and signed for FC Basel, who at that time played in the Nationalliga B, the second tier of Swiss football.
He first played in five test games scoring seven goals, including a hat-trick in the semi-final of the Sepione Cup as Basel beat Aarau to reach the final.
[4] Zuffi played his domestic league debut for his new club in the home game in the St. Jakob Stadium on 28 July 1993.
[5] During that season his teammates were the likes of Swiss international goalkeeper Stefan Huber, defenders Massimo Ceccaroni, Marco Walker and Samir Tabakovic, the midfielders Mario Cantaluppi, Martin Jeitziner, Admir Smajić and Ørjan Berg and the Swiss international striker Philippe Hertig.
[7] In 1998, Zuffi returned to the club where he launched his professional career FC Winterthur, who in the meantime had just been relegated to the 1st League, the third tier of Swiss football.
For the last two games of the FCW season 2015–16 he was ad-interim coach of the first team together with Umberto Romano and he has again performed the same interim function again from February to June 2017.
[8] From January 2013 to September 2014 Zuffi was also the assistant coach of the Swiss U-21 national team in addition to his position for his club.