He started his professional career in the Canton Ticino,[1] and played for a number of different teams, before he transferred to the prestigious club FC Sion in the summer of 2004.
After appearing in two test matches, Vailati played his team debut on 24 July 2012 in the 2012–13 UEFA Champions League Second qualifying round 3–0 home win against Flora Tallinn.
[5] In the 2012–13 Swiss Cup Basel reached the final, but were runners up behind Grasshopper Club, being defeated 4–3 on penalties, following a 1–1 draw after extra time.
Ending the group in second position, Basel continued in the knockout phase and advanced as far as the semi-finals, there being matched against the reigning UEFA Champions League holders Chelsea.
[7] Vailati played his domestic league debut with the team in the home game in the St. Jakob-Park on 23 November 2013 as Basel won 4–1 against Thun.
Finishing in third place in their group, Basel qualified for Europa League knockout phase and here they advanced as far as the quarter-finals.
In the 2014–15 Swiss Cup Basel reached the final, but for the third consecutive season they finished the competition as runners-up, losing 0–3 against Sion.
Before of the last home match of the season, FCB said good bye and thank you to several players including long time goalkeeper Germano Vailati.