Devera continued to rotate in playing at the left–back position, right–back position and centre–back position. Since the start of the 2008–09 season, Devera started in every match in the league until he suffered a ligament damage that kept him out between for four to six weeks. On 17 January 2009, Devera returned to the first team from injury, as they drew 1–1 against Dagenham & Redbridge. He then scored his first Barnet goal on 21 February 2009, in a 4–1 win over Bradford City. At the end of the 2008–09 season, Devera went on to make thirty–six appearances and scoring once in all competitions. At the start of the 2009–10 season, however, Devera found himself behind the pecking order in the club's defence and was placed on the substitute bench. He made his first appearance of the season, coming on as a substitute in extra time, as Barnet lose 2–0 against Watford on 26 August 2009. Devera was soon plagued by injuries and was out for almost two months. It wasn't until on 26 December 2009 when he returned to the starting lineup, in a 4–0 loss against Aldershot Town. Since returning to the starting lineup from injury, Devera regained his first team place for the rest of the season. At the end of the 2009–10 season, he went on thirty–four appearances in all competitions. At the start of the 2010–11 season, however, Devera suffered an injury that saw him miss two matches between 14 August 2010 and 21 August 2010. He then returned to the starting lineup on 28 August 2010, in a 1–1 draw against Bury. Devera continued to regain his first team for the side for the rest of the season, where he played in the centre–back position from the right–back position. His performance at the club this season was praised by Manager Paul Fairclough. On 19 February 2011, Devera scored his second goal for Barnet, in a 1–1 draw against Cheltenham Town. He then captained Barnet for the first time in his career on 8 March 2011, where Barnet lost 1–0 against Wycombe Wanderers. In the last game of the season against Port Vale, Devera captained the side, in a 1–0 win. On 8 May 2011, he was announced as Barnet's most improved and best player of the 2010–11 campaign. At the end of the 2010–11 season, Devera made forty–five appearances and scoring once in all