Giles was born in Telford, Shropshire, grew up in St George's and attended Telford Priory School. He progressed through Wolverhampton Wanderers' youth system, winning the AcademyPlayer of the Year Award for the 2017–18 season. The midfielder was one of a group of young players taken on a pre-season tour with the first team in summer 2018. He was an unused substitute in several EFL Cup ties before signing a four-year contract with the club which will keep him at Wolves until summer 2022. On 24 March 2018 he was loaned to his hometown club A.F.C. Telford United in the National League North for the rest of the season, being signed by his future Wolves under-23 coach Rob Edwards. He made his debut the same day in a goalless home draw with Darlington as an 82nd-minute substitute for Jordan Lussey. He totalled nine appearances and provided seven assists as the Bucks avoided relegation, and he scored in home and away wins against Spennymoor Town in April. He made his Wolves debut on 26 January 2019, his 19th birthday in an FA Cup fourth round tie away at Shrewsbury Town. The match ended as a 2–2 draw. On 1 July 2019, Giles temporarily located back to Shropshire once again, signing for League One side Shrewsbury Town on a planned season-long loan. On his debut on 3 August, he scored the only goal of a home win in the season opener against Portsmouth. On 17 January 2020, he was recalled by his parent club due to injury to Wolves' Rúben Vinagre. Giles returned to League One on January deadline day 2020, joining Coventry City on loan for the rest of the 2019–20 season. He made his only appearance on 25 February in a 1–1 home draw with Rotherham United, as a last-minute substitute for Sam McCallum. The season was curtailed due to the COVID-19 pandemic, with Coventry promoted as champions.
International career
In August 2019, Giles received his first England call-up, for under-20 matches against the Netherlands and Switzerland in the following month. He made his debut on 5 September in a goalless draw with the Dutch, starting the match at his club ground, the New Meadow.
