After being released by FC Bayern Munich in the summer of 2007, due to issues that arose with his French passport, he signed for Austrian club Red Bull Salzburg.

At first he was assigned to play in the Regionalliga West with the club's reserve squad, Red Bull Salzburg Juniors, but he managed to make it to the first team.

[13] In this match, on 12 May 2007, he was brought in, to replace Ali Karimi in the 88th minute,[14] wearing number 38,[15] to make his full professional debut for FC Bayern Munich, in what was an away 0–3 win for his team.

[19] In his second match with Red Bull Salzburg Juniors he handed two assists, to his teammates Vujic and Kitzbichler, to help them score the first and second goal of their team in a 2–2 home draw with SC-ESV Parndorf.

After playing in some friendly matches with Red Bull Salzburg during the winter break,[26][27] he made his league debut for the club on 23 February 2008,[28] in a 3–1 away defeat from Austria Wien, as he replaced Alexander Zickler in the 52nd minute.

[29] Ngwat-Mahop continued to feature regularly in Red Bull Salzburg's playing squad until the end of the season, although mostly as a substitute.

[30] Ngwat-Mahop contributed greatly in his club's season opener, as he scored the fourth goal and assisted the sixth, in Red Bull Salzburg's 6–0 home devastation against SV Mattersburg.

[34] It took him almost a month to find the net again, as he scored the last goal in his club's 4–2 home win against Vöcklabrucker SC for the 2nd round of the ÖFB-Cup.

[36] Until the end of the season he featured regularly in his team's matches, although mostly as a substitute, and only managed to score one more goal in a 4–1 home win against Austria Kärnten.

[39] He was, once again, a starter at Red Bull Salzburg' opening match of the 2009–10 Bundesliga season, but he was substituted in the 40th minute by his fellow countryman Somen Tchoyi.

[5] He managed to fully heal from his injury and play again for Red Bull Salzburg almost nine months later, in a 4–2 home win against SC Magna Wiener Neustadt, as he came in as a late substitute for Somen Tchoyi.

[41] At the meantime Ngwat-Mahop played in five games for Red Bull Salzburg Juniors managing to score four goals, two of them in a single match, a 3–0 home win against SC Austria Lustenau.

Ngwat-Mahop played in Red Bull Salzburg's opening match for the 2010–11 Bundesliga season, on 17 July 2010, coming in as a substitute in the 57th minute, in what was a 0–0 away draw against SV Kapfenberg.

[43] He scored his first goal of the season in a match for the 1st round of the ÖFB-Cup against St. Pölten II, that Red Bull Salzburg won by 1–4.

[44] On 24 August, he made the cross that resulted in Red BullSalzburg's goal, in his team's second leg match for the third Qualifying round of the 2010–11 UEFA Champions League against Hapoel Tel Aviv.

[46] That was meant to be Ngwat-Mahop's last game with the Red Bull Salzburg shirt, as in January he was sold to Greek Superleague outfit Iraklis Thessaloniki for an undisclosed fee.

[51] His goal was scored after an assist by teammate Karim Soltani and helped Iraklis to record its first away win in eleven months.

[55] One day after his commitment with the club, on 7 August 2012, he made his debut in a 1–4 home defeat against St. Pölten, where he even managed to score his first goal.