He was retained by the team for the 2016 Moto2 season, where he scored his first Grand Prix points in Argentina and achieved a best result of 8th in Sepang.

At the Italian Grand Prix, Vierge was forced to sit out of the race due to a thoracic trauma following a crash in qualifying.

On 5 August 2017, it was announced that Vierge would join Dynavolt Intact GP for the 2018 season, partnering Marcel Schrötter, who was also his teammate at Tech3 in the second half of 2015.

At Austria, he had a nasty crash in qualifying after a coming together with Steven Odendaal, causing him to miss the race and the next weekend at Silverstone.

His bad luck continued at Austin, when he was involved in a first-lap crash at turn one along with Fabio Di Giannantonio and Joe Roberts.

In September, Vierge and Honda announced that he would be competing in the Superbike World Championship for 2022, replacing Leon Haslam.