Celtic Born and raised in
London to parents of Nigerian descent, Oluwayemi spent the first part of his youth career at
Tottenham Hotspur's
academy, After progressing through the youth ranks, in the first half of 2021 Oluwayemi started training with Celtic's first team, first under manager
Neil Lennon and then, after his sacking,
John Kennedy. During the
2021–22 season, following the appointment of
Ange Postecoglou as Celtic's new manager, Oluwayemi effectively became the club's third-choice goalkeeper, behind
Joe Hart and
Scott Bain, He kept working in the first-team environment throughout
the following campaign, as well, while keeping featuring both in the
Lowland Football League (where he played for
Celtic's B Team) and the
UEFA Youth League. On 13 January 2023, Oluwayemi joined newly promoted Irish side
Cork City on loan until the end of June. He went on to make his professional debut on 17 February, starting and playing 90 minutes in Cork's first
league game of the season, a 1–2 home defeat to
Bohemians. In August 2023, Oluwayemi joined Austrian
2. Liga side
Admira Wacker on a season-long loan deal, making 9 appearances. In August 2024, Oluwayemi went on season-long loan to
Scottish Championship side
Dunfermline Athletic. Despite missing several games through injury, Oluwayemi became first choice goalkeeper for the Pars. On 22 October 2025, Oluwayemi signed for fellow
Scottish Premiership club
Kilmarnock on a 7-day emergency loan deal.
Leyton Orient On 2 February 2026, Oluwayemi signed for
League One club
Leyton Orient on a short-term contract. ==International career==