Research Associate I/II - Biologics Purification & Characterization (Temporary, 1-year contract; on-site in San Rafael, five days per week)Position SummarySupport biologics purification and analytical characterization, with a primary focus on enzymes and additional exposure to other therapeutic proteins, antibodies, and peptide-based modalities.Primarily laboratory-based role supporting multiple early-stage and exploratory research programs.Occasional basic instrument/equipment maintenance.Duties & ResponsibilitiesProtein & Biologic PurificationPurify recombinant enzymes and other therapeutic biologics (proteins, antibodies, peptides) using standard chromatography systems (e.G., AKTA Pure, AKTA Avant).
Execute purification workflows:Affinity chromatographyIon exchange chromatography (AEX/CEX)Size-exclusion chromatography (SEC)Hydrophobic interaction chromatography (HIC)Desalting and buffer exchangeConcentrate and perform buffer exchange using tangential-flow filtration (TFF) or ...