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Principal Research Scientist, Medicinal Chemistry

Job in South San Francisco, San Mateo County, California, 94083, USA
Listing for: BioSpace
Full Time position
Listed on 2026-09-13
Job specializations:
  • Science
    Drug Discovery, Pharmaceutical Science/ Research
Salary/Wage Range or Industry Benchmark: 177000 - 218000 USD Yearly USD 177000.00 218000.00 YEAR
Job Description & How to Apply Below

Non-Solicitation Policy And Notice To Agencies And Recruiters

IDEAYA's Non-Solicitation Policy strictly prohibits agencies and recruiters from any contact and communication with IDEAYA employees, managers, and leaders to submit unsolicited candidate resumes and/or to solicit business partnerships. Submission of unsolicited candidate resumes by agencies or recruiters with or without a contract in place with IDEAYA Biosciences Inc. will not create any implied obligation. Failure to comply with this policy will result in disqualification from current and future business opportunities with IDEAYA Biosciences.

All recruiting and talent agency decisions are strictly managed by the internal IDEAYA Human Resources function. All communication by external agencies and recruiters must be directed to  We ask that you only email your interest once.

Job Summary

About IDEAYA Biosciences: IDEAYA is a precision medicine oncology company committed to the discovery, development, and commercialization of transformative therapies for cancer. Our approach integrates expertise in small-molecule drug discovery, structural biology and bioinformatics with robust internal capabilities in identifying and validating translational biomarkers to develop tailored, potentially first-in-class, targeted therapies aligned to the genetic drivers of disease. We have built a deep pipeline of product candidates focused on synthetic lethality and antibody-drug conjugates, or ADCs, for molecularly defined solid tumor indications.

Our mission is to bring forth the next wave of precision oncology therapies that are more selective, more effective, and deeply personalized with the goal of altering the course of disease and improving clinical outcomes for patients with cancer.

Location:

South San Francisco

Position Summary

We are seeking a talented and highly motivated individual with significant pharmaceutical industry experience to join our multidisciplinary team as a discovery medicinal chemist. The successful candidate will impact programs by being highly productive in lab and by rationally proposing target molecules that overcome liabilities to deliver clinical candidates molecules. You will be a part of dynamic, cross-functional teams that successfully deliver drug discovery pipeline goals.

The responsibilities will include, but not be limited to, those listed below. This position is based in our South San Francisco headquarter offices and required to be onsite five days per week per our company policy. Reporting to:
Vice President, Medicinal Chemistry

Job Description

What you’ll do:
  • Apply modern synthetic techniques to prepare complex chemical targets to advance cutting-edge oncology programs and deliver high-quality molecules at a very productive rate
  • Design high-confidence reaction sequences that avoid known liabilities and reduce difficult purifications
  • Rapidly gather reaction information and troubleshoot problematic transformations
  • Plan ahead and multitask in and out of the lab to maintain high productivity
  • Deliver molecules on scales from 10 mg to > 25 g
  • Help manage external synthetic chemistry resources to high productivity
  • Follow SAR data and leverage medicinal chemistry knowledge to propose targets that address critical issues within a chemical series
  • Champion design and synthesis efforts into new directions as needed to achieve goals
  • Clearly and concisely communicate results and strategy to inform and influence others
  • Use structure-based design skills and modern computational tools to design targets with improved affinity and selectivity profiles
Requirements
  • Ph.D. in synthetic organic chemistry with 3-8 years of pharmaceutical industry medicinal chemistry experience
  • Excellent scientific expertise in synthetic organic chemistry,…
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