Roderick began his career with Maltese Premier League side Birkirkara, playing initially in the youth team, but making his debut during the 1998–99 season, Briffa only made one appearances that season, as Birkirkara went on to record a 2nd-place finish in Maltese Premier League.

Roderick went into the 2003–04 season hoping to help Birkirkara go one better and win the Maltese Premier League title, however the club recorded another 2nd-place finish, with Briffa making 16 appearances, but failing to score any goals.

Briffa picked up his second Maltese Cup winners medal, as the club beat Msida Saint-Joseph in the final.

He helped the club claim the Maltese Premier League title, making 23 appearances and scoring five goals.

During the season Briffa made 15 appearances and scored two goals, as Birkirkara finished in 3rd position in the Maltese Premier League.

In his debut season, Briffa made 25 appearances and scored three goals, as Sliema Wanderers finished in 4th position in the Maltese Premier League.