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Scientist II - Bioconjugation and Delivery

The Fountain Group
South San Francisco, CA Contractor
POSTED ON 4/2/2026
AVAILABLE BEFORE 5/1/2026
The Fountain Group is currently seeking a Scientist II - Bioconjugation and Delivery for a prominent client of ours. This position is located in South San Francisco, CA. Details for the position are as follows:

  • Pay: $45-51.73/hr.
  • 12-month assignment with possibility for extension or conversion based on performance and budget.

Responsibilities:

  • Bioconjugation of proteins utilizing chemical and/or enzymatic conjugation methods, including reaction design and optimization.
  • Development, optimization, and implementation of purification protocols of bioconjugates using common protein purification techniques.
  • Analytical characterization of reaction mixtures and purified conjugates employing chromatographic techniques (e.g. SEC, HIC, IEX), SDS-PAGE, colorimetric assays, as well as 1D and 2D mass spectrometry.
  • Data reporting, interpretation of results, and data presentation to internal teams.
  • Sample management of completed conjugates and related starting materials using internal inventory systems.
  • Collaboration with scientists from multiple functional and therapeutic areas at Genentech to advance molecules through the drug discovery pipeline.

Qualifications:

  • Bachelor’s/Master’s degree in Chemistry, Biochemistry, Biophysics, Chemical Biology, Biology, Biomedical Engineering, or related fields required
  • Basic understanding of protein purification and analytical techniques required
  • Previous experience with FPLC, HPLC or LCMS required
  • Previous experience with oligonucleotides and/or antibody oligonucleotide generation preferred

If you are interested in hearing more about the position, please respond to this posting with your resume attached.

Please forward this posting to any friends or colleagues as we do offer a Referral Bonus for any candidate hired.

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Salary : $45 - $52

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