Senior Associate Scientist - Conjugation Process Development
Pfizer
September 25, 2026
Full-time
On-site
Bothell, WA
Operations
Role: Senior Associate Scientist (R2) in Conjugation Process Development within Bioprocess R&D, focusing on developing scalable conjugation protocols for antibody-drug conjugates (ADCs) in early- and late-phase clinical programs. Responsibilities: design and execute small-scale conjugation experiments, document results, communicate findings to stakeholders, support technology transfer to manufacturing, and collaborate across teams to optimize processes and ensure successful scale-up. Qualifications: BS/BA in Chemistry, Biochemistry, Chemical/Biochemical Engineering with 3-4 years of lab experience, or MS with up to 2 years; proficiency in biochemical techniques, data analysis, and scientific communication. Preferred: experience with bioconjugation, protein purification, analytical biochemistry, GMP/GLP practices, and tech transfer. High-Value: ADC platform, process development, laboratory scale to manufacturing transfer, early- and late-phase clinical programs, on-premise location, no travel specified.