Responsibilities: - Design and conducting recombinant protein expression. - Design and develop stable cell pool/line for recombinant protein production. - Upstream process development for recombinant protein production platform and specific projects supported. - Cell line engineering with CRISPR/overexpression/RNA interference technology. - Demonstrated laboratory skills in recombinant protein/Ab expression, cell line development and cell line engineering. - Good skills in mammalian expression system (CHO/HEK) are highly preferred. - Other work assigned by line manager. Qualiligications Required: - MSc in molecular biology, biochemistry, cell biology, protein engineering or related discipline. Bachelor’s degree with minimum 2 years of work experiences. - Expertise in cell cryopreservation, thaw, passaging, routine culture, cell cloning, and cell banking. - Experience with mammalian cell transfection, genome editing, and characterization. - Skill with WAVE system and bioreactor is a plus but not required. - Skill with automated workstation is a plus but not required. - Strong problem-solving skill and able to work independently. - Candidate who demonstrates accountability, an outcome-focused mindset, a proactive approach, and a high degree of self-motivation. - The ability to effectively communicate and collaborate with diverse teams. - Good oral and written communication skills in Chinese; similar skill in English is a plus but not required.