D. in Immunology, Cancer Biology, Virology or a related field with demonstrated expertise in in vivo immuno-oncology models and immune effector cell biology + 4+ years of post-degree experience in industry settings focused on immune-based therapies, in vivo immunology, or engineered cell therapies + Advanced proficiency in murine tumor model development-including syngeneic, xenograft, and/or T-cell driven models-with a track record of designing and executing studies that inform mechanistic understanding and therapeutic advancement including: cell-based therapies, immunotherapies, and drug combination studies + Familiarity with gene editing technologies and delivery methods (e.g., adeno-associated viral vectors, non-viral delivery, CRISPR gene editing) + Proven capability to influence project direction through clear communication, scientific leadership, and representation of the in vivo pharmacology function in cross-functional settings. **?** **Work-life benefits include:** Paid Time Off + US Exempt Employees: flexible time off (unlimited, with manager approval, 11 paid national holidays (not applicable to employees in Phoenix, AZ, Puerto Rico or Rayzebio employees) + Phoenix, AZ, Puerto Rico and Rayzebio Exempt, Non-Exempt, Hourly Employees: 160 hours annual paid vacation for new hires with manager approval, 11 national holidays, and 3 optional holidays Based on eligibility*, additional time off for employees may include unlimited paid sick time, up to 2 paid volunteer days per year, summer hours flexibility, leaves of absence for medical, personal, parental, caregiver, bereavement, and military needs and an annual Global Shutdown between Christmas and New Years Day.