After returning to the UK, Bardon spent his youth career at Tooting & Mitcham United before moving to Bromley in 2013. Despite this, he failed to start and moved with reserve team manager Keith Bird to Cray Wanderers early in the season. In winter he moved to Gibraltar to play for Manchester 62 and put in a number of impressive performances, becoming a fixture in the starting XI. On 24 July 2014 he moved to league champions Lincoln Red Imps. With Lincoln, Bardon appeared in four matches in the club's 2015–16 UEFA Champions League qualifying campaign and scored a goal in the first round against FC Santa Coloma of Andorra. In January 2016, it was announced that Bardon was released from his contract with Lincoln early after he received an offer from a club in the USA. That club was later revealed to be Saint Louis FC of the United Soccer League. It was reported that Bardon was set to join up with Sheffield F.C. of the English Northern Premier League on a short-term basis to gain match fitness before the start of the 2016 USL season. Bardon made a total of 34 appearances, tallying 4 goals, in the Gibraltar Premier Division between his time with Manchester 62 and Lincoln Red Imps. Bardon made his Northern Premier League debut for Sheffield as a start in a 0–2 defeat to Leek Town F.C. on 26 January 2016. He was named Man of the Match for his performance. After unsuccessfully seeking a professional contract, Bardon returned to the Red Imps in July. He played in the club's shock 1-0 first leg victory over Celtic in the 2016–17 UEFA Champions League qualifiers. He would go on to star in midfield for Lincoln over the next two seasons, scoring 9 goals in 46 games. After completing a transfer degree at Ozarks Technical Community College while playing, he moved to the US in 2018 to study at Missouri Baptist University. However, he remained under contract at Lincoln and returned to action on 1 October against St Joseph's. On 4 February 2019, it was revealed that Bardon was on the pre-season roster of North Texas SC of USL League One, the new reserve side of Major League Soccer side FC Dallas. He joined the club as a trialist after impressing in an open try-out, having previously considered retiring from football after becoming disillusioned with the sport while at Lincoln Red Imps. However, he was not offered a contract, and he retired from football. He has since become a skills coach for North Texas Celtic FC, an amateur youth soccer club.
International career
In summer 2013 along with Danny Higginbotham, Bardon declared his eligibility to play for the Gibraltar national football team after the territory's acceptance into UEFA, however he was not included in the squad to face Slovakia in November, and was only a stand-by for the games against Estonia and the Faroe Islands in March 2014. He made his debut in the May 2014 friendly against Estonia, providing the assist for Jake Gosling to score the equaliser in a 1–1 draw - the first away draw by the national side. He also played in the side's 1–0 victory against Malta. He announced his retirement from playing in order to focus on coaching on 9 June 2019, with his final game coming the next day against Ireland.