During a career which began at West Ham United in 2001 and concluded with a season at Eastbourne Borough from 2012 to 2013, Anwar notably represented several Football League clubs including Dagenham & Redbridge and Barnet.

He was in West Ham's victorious 1999 FA Youth Cup winning squad that defeated Coventry City.

[7] Although highly regarded, as a bright talented traditional English defender, he was never able to break through into the first team and in February 2002 moved to Sheffield Wednesday on a free transfer.

[12] In June 2010, Anwar left Dagenham to sign for League Two club Barnet and he was appointed captain ahead of the 2010–11 season.

[15] In 2011, following the departure of manager Martin Allen, Anwar was appointed as caretaker assistant-manager to Giuliano Grazioli at Barnet making him the first ever British-Asian to take up a coaching position in English football.

Then after retiring due to injury in September 2013, Anwar returned to his first club West Ham United as a part-time coach for their youth team, working with their under 16's group.

[24][25][26] In May 2016, Anwar left Sporting Bengal after leading the club to their record Essex Senior League points tally.

[31] In February 2024, Uddin was appointed assistant manager of Ebbsfleet United following a successful interim period, once again supporting Danny Searle.

During May 2007, he visited a youth football camp in Dhaka, with British coach Anthony Ferguson and Canary Wharf's head of public affairs Zakir Khan.

[4] He was appointed Member of the Order of the British Empire (MBE) in the 2022 Birthday Honours for services to association football.