After playing for five years in Germany for TSV Havelse, VfL Wolfsburg II, and Hallescher FC, El-Helwe moved to Greek club Apollon Smyrnis in 2018.

He scored a brace against North Korea in the 2019 AFC Asian Cup, helping Lebanon win their first-ever game in the competition.

[7] On 5 September 2015, El-Helwe debuted for VfL Wolfsburg II against his former side TSV Havelse in a 6–1 win, coming on as a substitute on the 65th minute.

[7][11] He helped Wolfsburg win the Regionalliga Nord,[12] and played two promotion play-off games against Jahn Regensburg, losing 2–1 on aggregate.

[14] On 6 August 2016, he played his first league match at home against Chemnitzer FC in a 1–1 draw, coming on as a substitute for Sascha Pfeffer on the 78th minute.

[7] With his contract expiring, El-Helwe joined Super League Greece side Apollon Smyrnis on a free transfer for the 2018–19 season.

[33] Following his international duty with the Lebanon national team, El-Helwe returned to Jordan on 24 June;[34] however, he refused to attend the training session, and looked to break his contract with the club following financial disagreements.

[37] Having made his debut on 13 September,[38] as a starter in a 1–0 win against Tripoli,[39] El-Helwe's first goals for Ahed came on 6 November, scoring twice to help his side beat Sporting 2–0.

[42] On 14 May, El-Helwe scored a brace against second-tier side Perak in the second round of the Malaysia FA Cup, via a penalty and a free kick, to help Penang win 4–1 and progress to the quarter-finals.

[49] On 8 October 2015, El-Helwe made his debut for the Lebanon national team, starting in a 2018 FIFA World Cup qualifying 2–0 win against Myanmar.

[51] El-Helwe scored his first international goal on 29 March 2016, in Lebanon's home match against Myanmar in the qualifiers, securing a 1–1 draw for his team in the 88th minute.

[54] On 17 January 2019, during the last game against North Korea, he scored a volley in the 65th minute thanks to a cross by Mohamad Haidar to put Lebanon in the lead.

[55] On 23 June 2021, El-Helwe scored a volley in a 2021 FIFA Arab Cup qualification match against Djibouti to help Lebanon win 1–0 and qualify for the final tournament.

[59] SV Meppen's sporting director, Heiner Beckmann, described El-Helwe as "physically strong, quick and very versatile in attack" upon signing for the club in 2019.