[12] On 14 September 2012, having scored the under-21s' final goal in a 4–1 over Chelsea Ngoo revealed a T-shirt bearing the message "96 reasons 4 Justice".

[19] The deal was completed the following day,[20] meaning he teamed up with fellow Liverpool player Danny Wilson who was also on loan at Hearts.

[22] The following day he made his debut against Inverness Caledonian Thistle in the Scottish League Cup semi-final, scoring Hearts' equalising goal.

[25] Ngoo picked up a shoulder injury[26] which he struggled with towards the end of the season[27] and forced him to miss[28] their 3–0 win over St Mirren on 4 May.

[33] He made his full debut for Yeovil on 6 August 2013 in a first round League Cup tie at Southend United, he played 82 minutes before being substituted for Kieffer Moore in a 1–0 victory for the Glovers.

[35][36] He started Yeovil's next home league game against Derby County, but only lasted 45 minutes in a 3–0 defeat after he was substituted for Andy Williams at half-time.

[47] Ngoo made his competitive debut in the 2017 Albanian Supercup against Kukësi, entering in the last minutes as Tirana won 1–0 to claim their 11th title.

[48] His league debut occurred on 16 September opening matchday of the First Division against Iliria Fushë-Krujë, entering in the second half as Tirana won 1–0 at home.

[51] Ngoo was recovered from his long-term injury in September 2018,[52] making his top flight debut on 16th in a 3–1 win over Luftëtari Gjirokastër, entering in last minutes of the match in place of Dejan Blazhevski.

[59] He played in a friendly win over Korabi Peshkopi on 16 November, scoring one of the goals,[60] and was also involved in another debate, this time with teammate Gentian Muça, on who to take a penalty kick;[61] the verbal confrontation almost went physical.

[64][65][66] His first goal of 2019 came in the first leg of Albanian Cup round of 16 tie against Flamurtari Vlorë,[67] which turned out to be vital as Tirana progressed in quarter-finals 2–1 on aggregate.

[70] He was called up to the England squad for the U-20 World Cup in Colombia in 2011,[71] making his debut[70] on 1 August 2011, coming on as a 72nd-minute substitute[72] in a group match against Argentina, replacing Callum McManaman in a 0–0 draw.

He has also been praised for his selflessness, and his vision, being able to find his teammates with accuracy from close and long range; despite being a target man, Ngoo was the top assist provider for Tirana in the 2017–18 and 2018–19 seasons.