After a few "false" starts as a professional, he joined the Motorola team in 1995 alongside Italian rider Andrea Peron and fellow Americans Lance Armstrong and George Hincapie.
Julich was treated with radiofrequency ablation and was ready for the 1996 Vuelta a España late in the season, a race which showed the first glimpses of his potential in international professional cycling.
Following the doping scandal of the 1998 Tour, only 96 of 189 riders completed the race, and Julich finished third on the podium with winner Pantani and runner-up Ullrich.
[10] The 1999 Tour de France saw Julich as one of the favorites for the overall win, but a crash during an individual time trial forced him to quit the race, which was in turn won by the recovered Lance Armstrong.
Julich immediately saw his riding and performance improve, as he won a time-trial in the April 2004 race Tour of the Basque Country, his first victory since the 1998 season.
Bobby Julich won a silver medal in the 2004 Summer Olympics men's individual time trial event behind Russian Viatcheslav Ekimov.
For the 2006 season, Julich planned to conserve energy for helping Team CSC captain Ivan Basso in his winning bid for both the 2006 Giro d'Italia in May and 2006 Tour de France in July.
Even though he did not start his season as strongly compared to 2005, he managed to finish 3rd at the Tour of California in February and he won the prologue of Paris–Nice in March, results that even positively surprised Julich himself.
[13] In May 2011, Tyler Hamilton, the winner of the men's time trial at the 2004 Summer Olympics, confessed that he had used doping products, and returned his gold medal.
[16] The team had issued a statement asking both riders and support staff to sign a document verifying that they did not use or administer performance-enhancing drugs during their careers.
His name was also on the list of doping tests published by the French Senate on 24 July 2013 that were collected during the 1998 Tour de France and found suspicious for EPO when retested in 2004.