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Senior Scientist, Bioanalytical Development

Protagonist Therapeutics
August 24, 2026
Full-time
Remote friendly (Newark, CA)
Worldwide
Clinical Research and Development
Role: Senior Scientist in Bioanalytical at Protagonist Therapeutics, focused on developing and optimizing analytical methods to support drug discovery and development of peptide-based therapeutics. Responsibilities: operate and maintain instruments like HPLC and mass spectrometry, prepare reagents and samples, perform assays such as ELISA, develop new analytical techniques, ensure proper documentation, and communicate results cross-functionally. Requirements: MS in chemistry, biochemistry, bioengineering, or related field with 5+ years of industry or academic experience; proficiency with analytical instrumentation, chromatography, and data analysis software; strong organizational skills and ability to work in a fast-paced environment. HighValue: bioanalytical methods supporting peptide drugs in early to late development stages, with focus on assay robustness and accuracy. WorkSetup: onsite in Newark, CA, 4 days/week.