Career
Balmy began his career with Le Havre and went on trial at a number of English teams including Brighton & Hove Albion, Norwich City, Birmingham City and N ottinghamshire County before joining the latter in August 2013. He made his professional debut on 24 August 2013 in a 1–0 defeat against Stevenage. Balmy joined Oxford United on 9 February 2015 on a short-term deal.
He was loaned to Oxford City of the Conference North in March.
Following a trial with Swindon Town, Balmy signed for the club on an initial one-year contract.