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Salary
≈ $51k – $110k per year (Estimated)
Location
In office (Piscataway)
Seniority
Junior · 1+ year exp
Visa
H-1B filings in 12 months: 38 · green card filings: 4

Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 14, 2026. Genscript scores B on the Alion truth index.

Overview
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GenScript is a biotechnology company that supplies life science research services and products, including gene synthesis, peptide and protein production, antibody development and laboratory reagents for academic and pharmaceutical researchers. The group also runs the biologics and cell and gene therapy contract development and manufacturing business GenScript ProBio and the industrial enzymes maker Bestzyme, and holds a stake in the cell therapy developer Legend Biotech. Founded in 2002 and listed in Hong Kong, it operates major facilities in Nanjing, China, and is headquartered in Piscataway, New Jersey, United States.

About GenScript

Founded in 2002 in New Jersey, GenScript Biotech Corporation accelerates innovation in biotech and healthcare by providing researchers and companies with the building blocks needed to develop groundbreaking treatments and products. Guided by its mission to Make People and Nature Healthier Through Biotechnology, and its role as a well-recognized biotechnology company, GenScript has a team of approximately 6,165 employees and has served more than 200,000 customers across over 100 countries and regions.

Job Summary:  

We are seeking a skilled and detail-oriented Protein Purification Associate Scientist to join our US Protein Department. This role involves executing downstream processing activities including protein purification, characterization, and documentation. The ideal candidate will have a solid background in biochemistry, biotechnology, or a related field, along with hands-on experience in protein purification techniques in a laboratory or manufacturing setting. 

Key Responsibilities:  

  • Perform protein purification using a variety of chromatography techniques such as affinity, ion exchange, size exclusion, and hydrophobic interaction. 
  • Prepare buffers and reagents following SOPs and project-specific protocols. 
  • Characterize protein products using SDS-PAGE, Western Blot, HPLC, UV spectroscopy, BCA assay, and other analytical methods. 
  • Maintain accurate, complete, and timelydocumentation of experimental procedures and results. 
  • Troubleshoot and optimizepurification protocols as needed to improve yield and purity. 
  • Collaborate closely with upstream, analytical, and quality teams to ensure project timelines and specifications are met. 
  • Assistin the revision and creation of SOPs, batch records, and technical reports. 
  • Support additional tasks and projects as assigned by the department supervisor. 

Qualifications:  

  • BS/MS in Molecular Biology, Cellular Biology, Biochemistry or related field with 1+ years of relevant experience in protein purification/characterization. 
  • Familiarity with AKTA systems and chromatography software is a strong plus. 
  • Strong organizational and documentation skills, with attention to detail and data integrity. 
  • Ability to work independently and as part of a team in a fast-paced environment. 
  • Excellent problem-solving and communication skills. 
  • Experience in a CRO or CDMO setting is preferred. 

Benefits:

Benefits include medical, dental, and vision insurance as well as a 401(k) retirement plan with a company match that vests fully on day one. We offer paid parental leave after just three (3) months of employment, and a paid time off policy that includes vacation time, personal time, sick time, floating holidays, and company holidays. Additional benefits include flexible spending and health savings accounts, life and AD&D insurance, short- and long-term disability coverage, legal assistance, and supplemental plans such as pet, critical illness, accident, and hospital indemnity insurance. We also provide commuter benefits, well-being initiatives, and peer-to-peer recognition programs; demonstrating our ongoing commitment to building a culture where our people feel empowered, supported, and inspired to do their best work.

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. 

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