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Sean Brennan is an experienced professional in the telecommunications field, currently serving as Application Support Manager at Sure since April 2024. Prior to this role, Sean Brennan worked at JT Group Limited from February 2005 to January 2024, where responsibilities included SMC Carrier Relations Manager and SMC Manager, overseeing the management of the front line faults team. Additional roles at JT Group included Core Networks Engineer, focusing on the testing of software for fixed lines, and Core Application Manager during a 12-month secondment. Sean Brennan also has a background as a Core Switching Maintenance Engineer and as part of the SMC 24/7 Faults Team, handling first line fault investigations for JT's services. Sean Brennan's educational background includes attendance at De La Salle College Jersey from 1975 to 1984.