Millar, who retired from riding in 2014, is working on a voluntary basis with the men's endurance academy programme in Italy.
“It's been a bit of a controversial decision in some quarters because I am an ex-doper and I did cheat," Millar told the BBC.
"One of the things I'm going to bring is to try and make sure these young guys never have to go through the things I did and make the same mistakes I did."
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Millar, 39, was banned in 2004 for two years after admitting using the blood-booster EPO but returned to become one of the sport's biggest campaigners against performance-enhancing drugs.
“I can explain the reasons how I got into it (doping) and the damage it did to me and to others and I don't think there's any more powerful message than that to be honest," he said.
Millar won four individual stages in the Tour de France, cycling's most prestigious race, and was part of the British team in the Olympic road race at the 2012 London Games.
(Reporting by Ed Osmond; editing by Ken Ferris)
