Jamin scored two wins and six podiums in his debut season in the Pro Mazda Championship, finishing third in the standings. After being scouted by Andretti Autosport during an end of season test, he was signed to drive in the Indy Lights championship for them in 2017.
Jamin made his first-ever Pirelli World Challenge start in 2017 at Virginia International Raceway where he swept the weekend, winning both races in the GTS class, driving a KTMX-Bow GT4 for ANSA Motorsports.[3] After previously appearing for AKKA ASP Team in the GT World Challenge Europe in 2018, Jamin returned to the series in 2023, taking part in a Bronze Cup entry for AGS Events alongside Antonin Borga and Leonardo Gorini.[4]