Familiar with protein routine operation, sensitive to protein properties and characteristics; Familiar and proficient in protein purification: antibodies and Fc fusion proteins expressed by mammalian cells; Be familiar with the method of protein characterization and can communicate with CRO effectively; Experience in purifying recombinant proteins expressed by Escherichia coli, and can select and find suitable methods through literature, and quickly purify them; Familiar with routine protein analysis methods, proficient in HPLC use and maintenance; Connect with CRO company and participate in data analysis; Have a certain understanding of ADC analysis work.