[5] Producers like the Neptunes, Timbaland, and Rodney Jerkins shaped his musical horizons and his fascination with the anatomy of a rhythm section.

[6] Performing at open mic clubs around London, Jax met Ripperman, a grime producer from Mitcham, at Brixton's Raw Materials Studio and worked on releases for Big Narstie and Roadside Gs, among others in the scene.

[6] Despite a two-hour trip, Jax went from lectures to the studio daily to work on his craft, posting beats regularly on Myspace.

[7] After graduation, he rented a studio in Sydenham after not being allowed back in the family home, bought a Mac tower from Gumtree, and worked daily to hone his craft.

[6] After meeting Duke Dumont, he developed an interest in house music; they co-wrote and produced "I Got U", "Won't Look Back" and "Ocean Drive".

[11][12] Jones said of the track, "At the end of the day, I started making beats on a four-track, so it feels right to put that DIY energy into my music".

The song became his biggest success, reaching number three in the UK[13] and achieving top-five status in several European countries, including Germany, Ireland, Belgium, and Norway.

Their first song together, "All Day and Night" (featuring Madison Beer) was included on Jones' 2018 EP Snacks and was released as a single in March 2019.

Upon its release, Jones tweeted about the song's message in relation to the COVID-19 pandemic, and an inability to see family and friends due to national lockdown.

13 August 2021 saw the release of "Out Out", a collaborative single with English DJ Joel Corry, featuring the vocals of singer Charli XCX and rapper Saweetie.