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🥝 Senior Scientist II (Preclinical Bioanalysis)

Exelixis | Alameda, United States | Posted June 19, 2026

Job Description

SUMMARY/JOB PURPOSE:

The Senior Scientist II of preclinical bioanalysis provides preclinical bioanalytical support for the advancement of the biologics portfolio at Exelixis. The incumbent must have strong LCMS-based bioanalysis experience as s/he supports preclinical activities of ongoing and new projects in antibody drug conjugates and other biologics.

ESSENTIAL DUTIES AND RESPONSIBILITIES:

  • Independently design and execute assay development and qualification of ADCs or other biologics in rodent and NHP matrices, perform pharmacokinetic sample analyses in support of proof-of-concept studies on biologic oncology programs from discovery to lead selection. 

  • Design, implement and manage studies for pharmacokinetic characterization of biologic drug candidates conducted by CROs and in-house as needed.

  • Critical scientific/technical data analysis and interpretation of experiments.

  • Interact and collaborate wi...

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