During pre-season of the 2018–19 campaign, Bettache was noticed by manager Steve McClaren and become involved with first team affairs, after featuring heavily for the under-23 squad.[2] On 28 August 2018, Bettache was named as a substitute in the second round of the 2018–19 EFL Cup against Bristol Rovers, he replaced Bright Osayi-Samuel in the 85th minute to make his first team and professional debut.[5] On 25 May 2019, Bettache signed his first professional contract with QPR after completing his three-year scholarship with the academy.[6]
On 15 November 2019, Bettache joined Billericay Town on a one-month loan.[7] The deal was later extended until 25 January 2020.[8]
On 28 October 2020, Bettache signed a new three-year contract until 2023 with an option for a further year.[9]
Bettache joined EFL League Two club Oldham Athletic on a season-long loan on 20 August 2021.[10] On 10 December 2021, it was announced that Bettache would be recalled by QPR when the transfer window reopened in January, having made 13 appearances in all competitions at Oldham.[11]
On 20 January 2023, he was released on a mutual termination of his contract[13]
St. Louis City 2
In March 2023, it was announced that he had joined MLS Next Pro side St. Louis City 2 on a free transfer.[14] On September 3, 2023, he scored a hat trick against Houston Dynamo 2, became the first player to score a hat trick in the history of the club.[15]
On 27 February 2024, Bettache joined fellow MLS Next Pro side Tacoma Defiance.[16]