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John Tierney is an experienced finance professional currently serving as Senior Finance Business Manager at National Broadband Ireland since June 2022. Prior roles include Business Manager and Finance Manager at BT Ireland, where responsibilities encompassed contract ownership, budget delivery, customer relationship management, and P&L oversight. John began in commercial finance as a Commercial Finance Analyst at BT, managing significant revenue areas. Additionally, experience includes roles as Senior Consultant at CrossCountry Consulting, focusing on audit of financial statements, and Audit Senior at Deloitte, where John developed strong client relationships while auditing under Irish and US GAAP. Academic qualifications include a Masters in Accounting from the Michael Smurfit School of Business and a Commerce degree from University College Dublin.