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Research Associate, Scientist, or Senior Scientist (commensurate with experience)

About us

CHO Plus is an early-stage biotechnology company located in the San Francisco Bay Area.  We have developed patented technology for engineering mammalian cells to vastly increase their productivity for therapeutic protein or virus production.


We receive major support from Janssen Biotechnology (Johnson & Johnson) and we are located in the Johnson & Johnson – JLABS (South San Francisco) incubator.



This position is for someone who will help us disrupt therapeutic protein and virus production.  We have several openings, at various levels.


The successful candidate will be an experienced independent molecular biologist, cellular biologist, or virologist, and motivated to further develop our technology toward full commercialization.  The work will involve cell engineering, transfection, mammalian cell culture, cloning and screening, flow cytometry, and other related molecular and/or cellular biology techniques.


Present and future management responsibilities will depend on level of experience, and development within the company.


Must have

Multiple years of experience with recombinant mammalian cell culture, cell line creation, preferably for one or more pharmaceutical companies; mammalian cell culture expertise with various types of cells; experience with protein assay techniques for screening transfected cells



Experience with flow cytometry, virology, cell banking, transposase transfection methods; experience with general molecular biology techniques for designing and constructing vectors and transfecting mammalian cells; experience with protein analytical methods; knowledge of the regulatory environment related to creating and testing cells destined for GMP manufacturing; photomicroscopy



Salary plus equity (generous stock option grant), commensurate with experience


Start date

Immediate opening


How to Apply

Send resume by clicking the "Apply Now" button.

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