GBI’s senior operational staff members have decades of experience in biologics and cGMP manufacturing, including holding senior positions at numerous leading biopharmaceutical companies.

Darrin T. Schellin Chief Executive Officer
Muctarr Sesay, Ph.D. Chief Science Officer & Vice President of Bioconjugation Development
Steven Vorgity Vice President of Finance & Company Secretary
Paul Mutolo Vice President of Operations
Cynthia Parrilla Vice President of Human Resources
Prema Rathinavelu, MSc ​Associate Vice President of Quality Control
Amita Quadros, Ph.D. Vice President of Commercial Operations
Andrew Majdoch, MSc Associate Vice President of Technical Operations
Catherine Uitz, PhD Director of Process Development
Joscar Guivas Senior Director of Manufacturing and Supply Chain
Sandra Isaacs Director of Quality Assurance
Chris Benjamin IT Manager

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