[5] In April 2009, Kamdjo was sent on work experience to League Two club Cheltenham Town after learning that he would not be offered a professional contract with Reading.

[8] He featured in the first team throughout September, October and November, but faced a lengthy spell out until late February 2010 when he required surgery after rupturing medial collateral ligaments and cartilage damage in a block tackle in the match against Hereford United.

[13] The 2010–11 season saw the appointment of Mark Stimson as manager, and Kamdjo found himself down the pecking order with the arrivals of new defenders Anwar Uddin, Jordan Parkes and also the re-signing of Daniel Leach.

[citation needed] His first appearance of the season came on 18 September 2010, in a 4–1 home defeat to Rotherham United, coming on as a substitute for Daniel Leach.

[14] In late September 2010, defenders Daniel Leach and Darren Dennehy sustained long-term injuries, and Kamdjo was the only recognised centre back left to partner captain Anwar Uddin.

[citation needed] He scored his first career goal on 25 April 2011, with a header from Mark Byrne's cross in a 2–2 draw with Oxford United.

[14][17] Barnet went into the last league match of the season needing a final day win over Port Vale to ensure survival ahead of Lincoln City.

[24][26] After making a limited number of appearances at the start of 2015–16, he joined Forest Green's National League rials Boreham Wood on loan in September 2015.

[28] He returned to Forest Green at the end of his loan spell and played in their play-off semi-final second leg match against Dover Athletic.

[29] He was an unused substitute for the 2016 National League play-off final at Wembley Stadium on 15 May 2016, in which Forest Green were beaten 3–1 by Grimsby Town.

[31] Kamdjo signed for newly relegated National League club York City on 30 June 2016 on a two-year contract.