Sean began his professional career at Sheffield Wednesday in 2006, and had spells on loan at Mansfield Town and Bury, before establishing himself in the Wednesday first team in the 2008–09 season. He join Shrewsbury Town in July 2010, and helped them to win promotion out of League Two in 2011–12 before joining Port Vale then signing with Cowdenbeath in 2013, before joining Scunthorpe United.  Sean helped Scunthorpe to win promotion out of League Two in 2013–14. He signed with Grimsby Town and had spells with York City and Chester before moving to Newtown in the Summer of 2019.