John Mac is a seasoned professional in tax technology consulting, currently serving as a Director at Deloitte since 2025. Prior to this role, they held various positions including Director of Tax Management Consulting at Deloitte from 2021 to 2023 and Director of Tax Technology at GSK from 2015 to 2021. John also gained extensive experience as a Senior Manager in Indirect Tax Process and Technology at KPMG US from 2005 to 2015 and as a Senior Indirect Tax Manager at Maersk Line, Limited from 2023 to 2025.
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