C
Not Specified Permanent

San Francisco, California · USA job

Scientist, Peptide Chemistry

Calico Life Sciences

San Francisco, California

Job description

Overview

In this role, you will drive peptide drug discovery efforts leveraging Calico's ML-driven design platform. You'll collaborate with cross-functional teams to explore SAR and advance candidates toward IND-enabling studies. Your work will help accelerate the synthesis and optimization of therapeutic peptides in a fast, design-make-test cycle. This position offers the chance to shape a world-class synthetic engine within a mission-driven biotech environment.

Compensation / Benefits
  • base salary $135,000-$145,000
  • two annual cash bonuses
Responsibilities
  • Lead peptide drug discovery campaigns from hit to IND-enabling stages
  • Onboard and optimize novel chemistries for high-throughput automated peptide synthesis
  • Collaborate with biology, software, automation, assay, and pharmacology teams to meet ML platform objectives
  • Mentor junior scientists and foster technical excellence
  • Manage external collaborations and CROs with chemists, DMPK, and formulation experts
Key requirements
  • Ph.D. in Organic Chemistry, Peptide Chemistry, or related discipline; 0-2 years industry experience in drug discovery
  • Experience in peptide hit discovery, SAR campaigns, ADMET optimization, and peptide formulation
  • Ability to build and interpret complex assay cascades including biophysical and protein/cell-based assays and ADMET screening
  • Proficiency in automated synthesis, purification (HPLC, Flash, SPE), and characterization (LCMS, NMR, CD)
  • Demonstrated capability to implement diverse chemistries (backbone modifications, macrocyclization, stapling, bioconjugation) via solid- or solution-phase
  • Strong problem-solving and analytical skills; excellent interpersonal and communication abilities; willingness to work onsite 5 days/week
  • interpersonal skills
  • collaborative mindset
  • strong communication
  • automated synthesis
  • HPLC, Flash, SPE purification
  • LCMS, NMR, CD characterization

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