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Sr. Scientist, Potency Assays

BioPhase
San Diego, CA Contractor
POSTED ON 12/9/2025 CLOSED ON 1/7/2026

What are the responsibilities and job description for the Sr. Scientist, Potency Assays position at BioPhase?

πŸ§ͺ Sr. Scientist – Potency Assay (Temp-to-Hire)

Company: BioPhase

Location: San Diego, CA

Pay: $69.75–$79.25/hour (equivalent to $145K–$165K annually)

Schedule: Full-time, onsite


Overview:

BioPhase is seeking a Scientist with experience developing and qualifying target binding and cell-based potency assays for biologics. This is a hands-on role supporting late-stage research and CMC development efforts. The ideal candidate will have a strong foundation in potency assay design, method qualification, and GMP-readiness.


Responsibilities:

  • Develop and qualify target engagement and cell-based potency assays for biologics.
  • Support assay transfer to CDMOs for release, stability, and characterization testing.
  • Maintain and bank cell lines needed for assay development.
  • Identify and manage key reagents and materials.
  • Author or review protocols, reports, and qualification documents.
  • Review potency data for lot release and stability, assist with investigations and OOS/OOT analysis.


Qualifications:

  • MS or PhD in Biology, Biochemistry, or related field.
  • 5 years of industry experience in potency assay development.
  • Hands-on experience with recombinant and cell-based potency assays.
  • Proficiency with PRISM, Softmax Pro, or similar data analysis software.
  • Strong communication and collaboration skills.


Nice to Have:

  • Experience with CDMOs and regulatory submissions.
  • Familiarity with impurity testing (HCP, DNA, Protein A).

Salary : $145,000 - $165,000

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