John Sullivan is an accomplished professional with extensive experience in engineering and maintenance management. Currently serving as Associate Director of Engineering at Merck since November 2025, John previously held key roles such as Senior Maintenance Manager at Kenvue and Johnson & Johnson, where leadership of maintenance teams was a highlight. Additionally, John managed site security at Constellation and held several senior positions in radiation protection at Exelon Nuclear, contributing to operational safety in the nuclear industry. Early career experience includes service in the US Navy. John holds a Bachelor of Applied Science in Nuclear Engineering Technology from Excelsior University and is an alumnus of William Penn Charter School.
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