Pioneering Medicines: Senior Director, Head of Toxicology

Pioneering Medicines, a unit of Flagship Pioneering, seeks a Senior Director, Head of Toxicology to lead and build the toxicology function, defining and executing nonclinical safety strategies across a diverse portfolio. The role requires strong analytical thinking, scientific rigor, and clear communication to optimize candidate selection, guide preclinical development, and ensure regulatory readiness.

Requirements

• PhD, DVM, or equivalent in Toxicology, Pathology, Pharmacology, or related field
• ~10-15+ years of experience in nonclinical safety in biotech/pharma
• Proven track record advancing programs through IND and into clinical development
• Experience across multiple modalities preferred
• Strong experience managing CROs and external collaborations
• Experience leading or building a toxicology function or team, including management of internal scientists and/or external partners, is a plus

Benefits

• healthcare coverage
• annual incentive program
• retirement benefits