Following a race win with Proton Competition in the ELMS in 2013, Bachler entered the FIA WEC in 2014, where he helped the team to third in the standings, in addition to finishing second in class at the 24 Hours of Le Mans.

He also began driving in the GT World Challenge Europe Endurance Cup starting in 2019, when he won the season-opening race with Dinamic Motorsport.

[9] He returned to the Italian team in 2021 after a season with Rowe Racing and repeated that feat, before scoring a podium at the final round to finish sixth overall.

[11] As a Porsche-contracted driver, Bachler entered the GTD Pro class of the IMSA SportsCar Championship in 2023, partnering Patrick Pilet at Pfaff Motorsports.

[15][16] For PureRxcing's main season, Bachler and his teammates would drive in the WEC's new LMGT3 class, as well as racing as a Pro-classed lineup in the GTWC Endurance Cup.