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Mark Costelloe Location
Dublin, IE
Mark Costelloe Work
Head of Customer Success @ (February 2026 - Present)
Enterprise Account Manager @ (January 2024 - July 2025)
Senior Customer Success Manager @ (June 2022 - January 2024)
Senior Customer Success Manager @ (March 2022 - June 2022)
Customer Success Manager @ (April 2020 - March 2022)
Business Analyst @ (March 2018 - April 2020)
Enterprise Account Director @ (January 2024 - July 2025)
Busniess Support agent - Street Team Memeber @ (August 2017 - March 2018)
Marketing and Business Development Intern @ (October 2016 - March 2018)
Account Executive Intern @ (January 2016 - July 2016)
Sales Assistant @ (June 2014 - May 2016)
Bar Staff @ Club 92 (September 2013 - November 2014)
Mark Costelloe Education
Dún Laoghaire Institute of Art, Design and Technology
Bachelor's degree (Bachelor of Business (Honours) in Entrepreneurship and Management)
2013-2017
CBC Monkstown
Leaving certificate
2007-2013
Mark Costelloe Summary
Mark Costelloe, based in Dublin, IE, is currently a Head of Customer Success at Ardowen. Mark Costelloe brings experience from previous roles at DigitalWell and eleven. Mark Costelloe holds a 2013 - 2017 Bachelor's degree in Bachelor of Business (Honours) in Entrepreneurship and Management @ Dún Laoghaire Institute of Art, Design and Technology. Mark Costelloe has 1 emails on RocketReach.
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