Senior Manager, Upstream MSAT

About Summit

Summit Therapeutics Inc. is a biopharmaceutical oncology company with a mission focused on improving quality of life, increasing potential duration of life, and resolving serious unmet medical needs. At Summit, we believe in building a team of world class professionals who are passionate about this mission, and it is our people who drive this mission to reality. Summit’s core values include integrity, passion for excellence, purposeful urgency, collaboration, and our commitment to people.

Our employees are truly the heart and soul of our culture, and they are invaluable in shaping our journey toward excellence.

Summit’s Team Is Inspired To Touch And Help Change Lives Through Summit’s Clinical Studies In The Field Of Oncology. Summit Has Multiple Global Phase 3 Clinical Studies, Including

• HARMONi:
  Phase 3 clinical study which was intended to evaluate ivonescimab combined with chemotherapy compared to placebo plus chemotherapy in patients with EGFR‑mutated, locally advanced or metastatic non‑squamous NSCLC who were previously treated with a 3rd generation EGFR TKI.
• HARMONi‑3:
  Phase 3 clinical study which is intended to evaluate ivonescimab combined with chemotherapy compared to pembrolizumab combined with chemotherapy in patients with first‑line metastatic NSCLC.
• HARMONi‑7:
  Phase 3 clinical study which is intended to evaluate ivonescimab monotherapy compared to pembrolizumab monotherapy in patients with first‑line metastatic NSCLC.

• HARMONi‑GI3:
  Phase 3 clinical study intended to evaluate ivonescimab in combination with chemotherapy compared with bevacizumab plus chemotherapy.

Princeton, NJ (ONSITE)

We are seeking a Senior Manager, MSAT Drug Substance (Upstream) to support technology transfer, process validation, regulatory submissions (IND/IMPD/BLA/MAA), and inspection readiness for commercial manufacturing. This role will lead upstream technology transfers across internal and external sites, including cell culture scale‑up, PPQ execution, CPV and lifecycle monitoring, and will contribute to Module 3 regulatory content. The ideal candidate brings strong expertise in mAb upstream processing, process characterization, control strategy development, and lifecycle management.

• Provide technical support and leadership for upstream process characterization, validation, and commercial manufacturing support, including process optimisation and troubleshooting.
• Lead technology transfer activities across internal teams and CDMOs, including scale‑up, PPQ execution, and commercial readiness, serving as the primary technical interface with external partners.
• Support clinical and commercial manufacturing by ensuring alignment with development timelines, supply plans, and operational readiness.
• Assess and manage process risks and lifecycle changes, including risk assessments, deviation investigations, root cause analysis, CAPA, and change control.
• Author and review regulatory submissions (IND/IMPD/BLA/MAA Module 3 sections) and provide technical support for health authority interactions.
• Oversee PPQ execution and commercial manufacturing support, including person‑in‑plant activities, ensuring GMP compliance, data integrity, and inspection readiness (PLI/PAI).
• Lead change control activities, including impact assessments, and collaborate with Quality and Technical Operations on the development and execution of implementation plans.
• Drive continuous improvement initiatives to enhance process robustness, scalability, and operational efficiency.
• Travel as needed to support manufacturing, technology transfer, and CDMO oversight.
• Perform other duties as assigned.

• Degree in chemical engineering, biotechnology, pharmaceutical science, or a related field. Bachelor’s degree with 8+ years of relevant experience;
  Master’s degree with 6+ years of relevant experience;
  PhD with 3+ years of relevant experience.

• Experience with CHO mammalian cell culture processes, including seed train operations, production bioreactors, media and feed strategies, process scale‑up, harvest…