Keith gained his nickname "Jah Benji" after the twelve tribes Rasta, as one of the twelve brothers of the tribe of Israel. In the latter half of the 1970s he worked as mechanical engineer at Hawker Sydley Aero Space, he began playing music when he was just five years old by playing the Violin, at Woodbury Down Primary School. He started producing music at the age of 23, his first release being 'Fourth Generation' by Ras Imru, issued on his own Maccabees label.
A friendship was formed with Sugar Minott who gave Keith a 2” Master tape with various recordings of Philip Fraser who he was recording at the time. Some of these tracks were released on a various Artist Album Called Maccabees 1.
While working at Easy Street Studio he produced Dennis Brown and played a major role in re launching his career, his first major success as a producer was 'Ole Man River' in March 1983, initially released in a pressing of 500 on his Maccabees label, but reissued the following year on his Chart Sounds label under licence to EMI records through Jet Star Phonographic, and going on to sell over 80,000 copies in Jamaica and the Caribbean. Unfortunately neither Dennis nor Keith benefited from these sales because every one who put their finger in that pie, starting with EMI records, ripped them off.
Around the same time he released a song co produced with Walter Fraser, John Holt singing 'Lean On Me', a cover version of Lionel Richie’s song, which was very popular through out Europe and America. He also co produced Dennis Brown 'Mr Bojangles '. Janice McKenzie over saw the day-to-day publishing from the Mill Hill office in Trafalgar House
In the early 1990s, Keith Wint became one of UK's most in-demand producers, with the likes of Dennis Brown, John Holt, Junior Delgado, Sugar Minott, Phillip Fraser, Alton Ellis, Tyrone Taylor, Trevor Walters, Jackie Mittoo, Gene Rondo, Colour Man, Tuccedo, Ernest Wilson,Hughie Izaachar, Jean Adebambo, Christine McNabb, Bobby Blue, Pablo Diamond, Sly & Robbie, The Darbaz, Roots Radics, and more recently Freddie McGregor, Determine and Demolition Man, all using his services.
He also continued to record himself. Singing songs like 'Stepping over Shadows', written by his childhood friend Fitzroy Hughes, whose father was a musician with a band. Keith used to go to Fitzroy’s home and listen to Fitzroy's father while he rehearsed with his band. The sounds of the three piece horn sections, the Drum and the Bass left a lasting impression on Keith and the music bug was in his blood, as if his life depended on it. The late 1990s saw him still very active as a producer, but his output in the late 1990s was significantly less He began to build his own studio and is working on reissues of much of his back catalogue, as well as new recordings. He continues to produce new material.