In January 2013, Ruiz made his Top 14 debut, taking charge of Stade Montois's home game against Toulouse.

In January 2014, Ruiz became the first French referee to officiate a Pro12 match, taking charge of the Italian derby between Zebre and Benetton Treviso.

Ruiz first international match came on 22 February 2014, between Georgia and Russia during the 2012–14 European Nations Cup First Division.

A couple weeks later, Ruiz had his first Six Nations Championship appointment, acting as assistant referee to Romain Poite for England vs Ireland.

During the 2016 Hong Kong Sevens in April 2016, Ruiz refereed his 100th World Series match.