The 22-year-old made the step up from the club's reserve team this season and has featured in 11 games in all competitions this season.
He netted his first goal in the 3-0 Betway Premiership win over TS Galaxy on Tuesday night, leaving Ouaddou to label Masilela as one of the brightest prospects he has ever worked with in his career.
Boitumelo Radiopane (18'), and Tshepang Moremi (50') were also both on target before Masilela found the back of the net after 76 minutes.
The result left the Buccaneers in second place on the league standings with 22 points from eight games, just one point adrift of Mamelodi Sundowns, but with a game in hand.
Speaking after the game, Ouaddou said on iDiski Times: "I can tell you, I have worked for six, seven years in development in France, in Michel Platini Academy. So, I have seen many young players, and he was one of the best I have seen.
"Sometimes when I try with a little but more experience than him, I'm older than him, I have seen a lot of players, when I try to put players in the right path for high level of football."
Mandla Ncikazi has credited Orlando Pirates for playing a significant role in his development as a coach, insisting that maintaining good relationships helped pave the way for his return to Golden Arrows.
Orlando Pirates head coach Abdeslam Ouaddou has challenged his players to believe they can end the club's 31-year wait for a second CAF Champions League title after securing their place in the group stages.
Orlando Pirates breezed into the CAF Champions League group stage after a dominant 4-0 victory over Namibian side African Stars at the Orlando Stadium to secure a 5-0 aggregate victory.
African Stars head coach Gerald Guther says his side will "leave everything on the field," in their crucial CAF Champions League qualifier with Orlando Pirates on Friday night.
