 He made his senior debut for Kilmarnock on 18 May 2013, as they lost 3–1 at home to St Mirren in a Scottish Premier League game.His debut came at the age of 16 years and four months, making him Kilmarnock's youngest player for 50 years.On 3 October 2014, Kiltie signed for Scottish Championship club Queen of the South on a one-month loan.