John Sienko

John Sienko is an accomplished Senior Human Resources Manager at Bio-Techne, overseeing operations across Toronto, Ottawa, Wallingford, Atlanta, and San Jose since January 2022. Prior to this role, John served as HR Manager and Site EHS Specialist at Parker Hannifin from November 2012 to January 2022. John's career began with positions in human resources at SureSource and MiddleOak, where responsibilities included HR coordination, recruitment, and generalist duties. Early experiences included a graduate assistant role at Quinnipiac University and various student leadership positions, illustrating a strong foundation in communication and community management. John holds an MBA in Management from Quinnipiac University and a BS in Management from Fairfield University.