Career
He has previously had spells on loan at Greenock Morton and Dumbarton. Celtic
Findlay came through the Celtic youth system making his first team debut in a friendly against Norwich City. He also captained Celtic at U17 level
Although yet to play a competitive game for the senior side, he featured regularly for the Development Side and taken part in the Union of European Football Associations Youth League and the English Premier League International Cup.
Morton
Findlay signed for Greenock Morton on loan until the end of the season in January 2014. He made his debut on 1 February in a 1–1 draw against league leaders Falkirk, turning in an impressive performance.
Morton spent most of the season in an unsuccessful struggle against relegation, but Findlay continued to show promise. Morton lost 2–1 away at Raith Rovers on 15 March, but Findlay"s pace and positional sense restricted Raith"s goalscoring chances, and his overall performance was described as showing "composure beyond his years".
Findlay"s spell at Morton however ended on an embarrassing note, his side lost 10–2 against Hamilton Accies in their last game of the season, with Findlay scoring an own goal.
Dumbarton
On 16 January 2015, Findlay joined Scottish Championship club Dumbarton on loan until the end of the 2014-2015 season. Findlay immediately impressed, and was named the club"s player of the month for February. He was noted for his composure with the ball, often carrying the ball out of defence with ease.
Findlay himself pointed out that "coming through at Celtic it is in their philosophy that they want to play out from the back, they want their defenders to be good on the ball." His form also saw him named in the Scotland under-21 squad for a friendly with Hungary in March.
Kilmarnock
On 9 July 2015, it was confirmed that Findlay was going out on loan to Kilmarnock for the season. Findlay was first called into the Scotland U21 squad in November 2012 by coach Ricky Sbragia for a friendly against Portugal.