Cohen started his career as a trainee at Watford and was added to the club's first team squad during the 2002–03 season but failed to play a first team match and was eventually released by The Hornets at end of the season. He then teamed up Russell Slade at Scarborough where he scored twice in seven appearances with the club from the McCain Stadium. His next port of call was to sign for Gretna, who at the time had earnt back to back promotions that took them from the foot of the Scottish Football League up into the Scottish Premier League. Cohen, however struggled to make an impact on the first team and was loaned to Northern Premier League side Workington in the 2004–05 season where he found the net twenty times and finished as the club's top scorer, helping them to gain promotion to the Conference North.
Grimsby Town
In June 2005 he became one of the first new signings of the 2005–06 season for Grimsby Town joining Terry Barwick, Jermaine Palmer and John Lukic as the first new additions. He linked up with Russell Slade once more who signed Cohen on a season long loan deal from his Scottish parent club. Primarily used as a forward at his previous clubs, Cohen became a makeshift right and left sided midfielder and his performances soon earned him a permanent deal when he was signed for an undisclosed fee in February 2006. Cohen was part of the Grimsby side that defeated Tottenham Hotspur in the second round of the League Cup and the eventual defeat against Newcastle United in the following round. He was also part of the side that lost the League Two Play-off final against Cheltenham Town which condemned Grimsby to a third successive season in the fourth tier of English football.
Cohen would go on to miss the entire 2006–07 season due to an injury picked up in pre-season, and at the end of the year he was released by Alan Buckley, however The Football Association gave Grimsby the registration forms for Cohen and the first option to sign him back up if the situation ever came about, however Cohen opted to retire from professional football due to his on-going injury woes having spent the entire 2007–08 season without a club and still suffering from injury. In 2008, he came out of retirement and signed for Conference South side St Albans City in August 2008. Cohen played for the club for two seasons, scoring 12 goals in 81 appearances. He eventually retired in May 2010 to work in the Ambulance service.
Return
In 2015, Cohen came out of a five-year retirement from competitive football and signed a contract for Royston Town. In 2017 he briefly joined AFC Hornchurch before moving to Soham Town Rangers.
