Date Posted: 12/13/2025
Hiring Organization: Rose International
Position Number: 494603
Industry: Biotech/Healthcare
Job Title: Scientist
Job Location: Berkeley, CA, USA, 94710
Work Model: Onsite
Shift: M-F 8am-5pm - Flexibility is needed as occasional weekend and evening hours will be required.
Employment Type: Temporary
FT/PT: Full-Time
Estimated Duration (In months): 12
Min Hourly Rate($): 38.00
Max Hourly Rate($): 48.00
Must Have Skills/Attributes: Cell Culture, Laboratory, Science
Experience Desired: Previous work experience with ESC/iPSC cell culture (1 yrs); Basic aseptic techniques and fundamental laboratory skills (1 yrs)
Required Minimum Education: Bachelor’s Degree
**C2C is not available**
Job Description
***Drug screen & criminal background check will be required
SUMMARY
The successful candidate will join the CMC Bio-DS Cell Culture team at Bayer’s Berkeley site, contributing to cutting-edge cell therapy development. The primary focus will be on projects involving embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs).
The candidate will also be involved in some general mammalian cell culture tasks including media/solution prep and mammalian cell culture using bioreactors.
EDUCATION / EXPERIENCE REQUIREMENTS
• Bachelor’s degree in Biology, Biotechnology, Biochemistry, Chemical Engineering or a related field
• Higher degree optional
• Previous work experience with ESC/iPSC cell culture
REQUIRED SKILLS
• Proficient in basic aseptic techniques and fundamental laboratory skills (e.g., accurate pipetting).
• Experienced in mammalian cell culture, including work under a laminar flow hood and familiarity with analytical methods related to cell culture.
• Skilled in preparing solutions and media for mammalian cell culture processes.
• Strong communication skills and proven ability to work effectively as part of a team.
RESPONSIBILITIES
• Collaborate with a team of scientists
• Demonstrate strong communication skills and the ability to follow verbal and written procedures.
Cell Culture Operations
• Perform aseptic techniques for culturing iPSCs, ESCs, and CHO cell lines.
• Execute cell thawing, passaging, and harvesting for both cell therapy and mAb production projects.
• Conduct basic analytical tasks, including cell counts and monitoring metabolites and gases during passages.
Bioreactor Cultures
• Set up bioreactors, perform inoculation, and conduct daily sampling.
• Make necessary adjustments such as feeding and probe calibration.
• Media and Solution Preparation
• Prepare media, feeds, and solutions required for bioreactor cultures.
Data Management
• Accurately record and transfer experimental data into appropriate databases.
Lab Maintenance
• Perform daily and monthly lab maintenance activities, including cleaning biological safety cabinets (BSCs) and incubators.
• Conduct daily equipment calibrations to ensure compliance and operational readiness
- **Only those lawfully authorized to work in the designated country associated with the position will be considered.**
- **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**
Benefits:
For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website.
California Pay Equity:
For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here.
Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.
If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department.
Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).
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