John Mac is an experienced tax technology professional currently serving as a Director at Deloitte since 2025. They previously held the role of Director, Tax Management Consulting at Deloitte from 2021 to 2023 and spent six years as Director of Tax Technology at GSK from 2015 to 2021. Before that, John worked as a Senior Manager, Indirect Tax Process and Technology at KPMG US from 2005 to 2015. Most recently, they served as a Senior Indirect Tax Manager at Maersk Line, Limited from 2023 to 2025.
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