Associate Scientist, Cell Expression Protein

Company: GenScript
Location: Piscataway
Posted on: February 19, 2026

Job Description:

About GenScript GenScript Biotech Corporation (Stock Code: 1548.HK) is a global biotechnology group. Founded in 2002, GenScript has an established global presence across North America, Europe, the Greater China, and Asia Pacific. GenScript's businesses encompass four major categories based on its leading gene synthesis technology, including operation as a Life Science CRO, enzyme and synthetic biology products, biologics development and manufacturing, and cell therapy. GenScript is committed to striving towards its vision of being the most reliable biotech company in the world to make humans and nature healthier through biotechnology. Genscript is seeking an Associate Scientist, Cell Culture for our Production team in Piscataway, NJ. The estimated salary range is $60,000 - $70,000, depending on experience. Job Responsibilities: Performing routine molecular biology techniques including PCR amplification, restriction digestion, and ligation to assemble expression vectors as outlined in the DS (Order Design) specifications. Executing the transformation of recombinant DNA into competent cells (microbial or mammalian) and maintaining high-quality seed stocks for production runs. Supporting upstream production by monitoring cell growth, viability, and metabolic parameters in shake flasks or small-scale bioreactors. Troubleshoot technical issues in production protocols and propose effective solutions. Participate in continuous improvement efforts to enhance workflow efficiency and product quality. Collaborate with cross-functional teams to achieve production targets and timelines. Stay updated on industry trends and advancements in molecular biology techniques. Conducting plasmid DNA extraction (Miniprep/Maxiprep) and coordinating with the Sequencing Department to verify construct integrity before moving to the expression phase. Maintaining a clean and organized workspace in the Piscataway facility, ensuring all equipment is calibrated and reagents are stocked to prevent production delays. Job Requirements: Master’s or PhD degree in Life Sciences (e.g., Molecular Biology, Biochemistry, Biotechnology, or related field) is preferred. Bachelor’s degree in Life Sciences with relevant work experience will also be considered. Prior experience in cell culture, cell expression protein is highly preferred. Hands-on experience in a laboratory or production setting is a plus. Fast learner with the ability to quickly adapt to new techniques and protocols. Strong critical thinking and problem-solving skills to address complex technical challenges. Results-driven mindset with a focus on delivering high-quality outcomes. Excellent organizational skills and attention to detail. Ability to work independently and collaboratively in a team-oriented environment. Location Requirement: Must be able to work on-site in Piscataway, NJ. LI-EB1 GS GenScript USA Inc/ProBio Inc. is a proud equal opportunity/affirmative action employer committed to attracting, retaining, and maximizing the performance of a diverse and inclusive workforce. It is the Company's policy to ensure equal employment opportunity without discrimination or harassment based on race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, age, disability, national origin, marital or domestic/civil partnership status, genetic information, citizenship status, uniformed service member or veteran status, or any other characteristic protected by law. GenScript USA Inc./ProBio Inc. maintains a drug-free workplace. Please note: Genscript USA Inc./ProBio Inc. will only contact candidates through verified application sources. GenScript/Probio does not request personal information from candidates through individual email or any other platform.

Keywords: GenScript, New Brunswick , Associate Scientist, Cell Expression Protein, Science, Research & Development , Piscataway, New Jersey