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Principal​/Sr. Principal Scientist - Development

Job in San Francisco, San Francisco County, California, 94199, USA
Listing for: Genentech
Full Time position
Listed on 2026-07-15
Job specializations:
  • Research/Development
    Research Scientist, Pharmaceutical Science/ Research, Immunology Research, Medical Science
Salary/Wage Range or Industry Benchmark: 141500 - 262900 USD Yearly USD 141500.00 262900.00 YEAR
Job Description & How to Apply Below

The Position

The Department of Translational Safety at Genentech provides scientific leadership and plays an active role in the process of drug development from the discovery phase through marketed products. We are seeking a Principal/Sr Principal Scientist in Toxicology to support drug development. This role will involve working in a collaborative team environment as part of the comprehensive safety assessment of Genentech therapeutics by providing toxicology representation to programs.

The successful candidate for Principal/Sr Principal Scientist will provide scientific leadership and play an active role in the process of drug development, with a strong emphasis on Genentech’s oncology and cardiovascular, respiratory, and metabolism development project portfolio, which includes small molecules, immunomodulatory biotherapeutics, bi-specific antibodies, ADCs, cancer vaccines and cellular therapeutics.

Working in a collaborative team environment, the Principal/Sr Principal Scientist leads the safety assessment of Genentech therapeutics by creating a best‑evidence synthesis of existing knowledge and comprehensive investigations of toxicologic activity, strategic planning, and designing/implementing/supervising toxicology studies in support of program advancement.

The Opportunity
  • Interdisciplinary project team membership
  • Scientific leadership in the design and implementation of safety assessment strategies to support program advancement and decision‑making
  • Preparation and review of regulatory documentation
  • Preparation and review of study reports and manuscripts
  • Representation of Genentech in meetings with regulatory authorities
  • Investigations into mechanisms of toxicity
  • Proactive management of potential safety liabilities and communication of impact to teams and governance committees
  • Experience with cross‑functional teams and capability to build productive cross‑functional internal and external collaborations are desired
  • Mentoring of toxicologists and as needed, team members, and lead or provide support to inter‑ and intra‑departmental initiatives
Who You Are

Principal Scientist

  • PhD and post‑doctorate or equivalent experience in toxicology or a relevant field along with a minimum of 3+ years relevant experience in the pharmaceutical/biotechnology/CRO industry related to toxicology
  • Extensive experience in drug development and interaction with global regulatory authorities are required
  • Experience in oncology and cardiovascular, respiratory, and metabolism therapy areas leveraging different therapeutic modalities such as small molecules, degraders, and ADCs is highly desirable
  • Evidence of a consistent and extensive record of impact internally and externally
  • The successful candidate must also demonstrate strong decision‑making, complex problem solving, critical data analysis and interpretation, excellent written and verbal communication skills; and the ability to build productive cross‑functional collaborations both within and external to Genentech
  • Board certification in toxicology is desirable

Senior Principal Scientist

  • PhD and post‑doctorate or equivalent experience in toxicology or a relevant field along with a minimum of 8+ years relevant experience in the pharmaceutical/biotechnology/CRO industry related to toxicology
  • Extensive experience in drug development and interaction with global regulatory authorities are required
  • Experience in oncology and cardiovascular, respiratory, and metabolism therapy areas leveraging different therapeutic modalities such as small molecules, degraders, and ADCs is highly desirable
  • Evidence of a consistent and extensive record of impact internally and externally
  • The successful candidate must also demonstrate strong decision‑making, complex problem solving, critical data analysis and interpretation, excellent written and verbal communication skills; and the ability to build productive cross‑functional collaborations both within and external to Genentech
  • Board certification in toxicology is desirable

The expected salary range for this position based on the primary location of California is $141,500 - $262,900.

The expected salary range for this position based on the primary location of…

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