Dr Schumacher studied Pharmacy and Chemistry at the University of Heidelberg, Germany. After his thesis at the Max-Planck-Institute for Medicinal Research he joined ASTA Medica Frankfurt in Oncology research where he filed a number of patents for novel anticancer agents. After several project assignments he entered Quality Assurance, heading the GMP compliance international department. There he escorted numerous FDA inspections and managed the internal GMP audit function. He also assumed the QP accountability for contract manufacturing.

In 2001 Dr Schumacher joined F. Hoffmann-La Roche Ltd in Basel as Head of the Informatics Quality department with subsequent promotion to Vice Director. In 2010 he was assigned to the Head of Computer System Quality in Technical Operations. From 2015 he was leading the global Data Integrity initiative until his retirement in August 2016. From 2002 until 2009 he was lecturing as associate professor at the University of Bonn, Pharmacy Faculty, Regulatory Affairs.

In the last 25 years Dr Schumacher has trained numerous individuals in seminars, conferences and inhouse training courses in general GMPs, computer validation, risk management and data integrity. Participants always like his ability to pinpoint the essentials and his pragmatism to find the best possibilities for solutions to meet the regulatory expectations. In August 2016, he started working as a freelance consultant.