Scientist, ADC In Vivo Pharmacology

Position Summary Pfizer is seeking a highly motivated Scientist to join the In Vivo Pharmacology group within the Oncology Research Unit, with a focus on antibody-drug conjugate (ADC) programs, but including other large molecule and small molecule programs. This role supports the execution of high-quality in vivo efficacy, pharmacodynamic, tolerability, and mechanistic studies that enable preclinical discovery and development. The ideal candidate will demonstrate strong technical capability in oncology animal models, careful attention to study details, and a commitment to animal welfare, compliance, and scientific rigor. The Scientist is expected to contribute as a reliable technical and scientific team member while developing increasing independence in study execution, data interpretation, and cross-functional collaboration. Position Responsibilities Execute in vivo oncology studies supporting discovery programs using a variety of in vivo models including human cell line- derived, patient-derived xenograft, syngeneic models as appropriate. Perform routine and advanced in vivo procedures, including tumor measurements, body weight monitoring, test article administration (IV, PO, subQ, IP dosing), clinical observations, and sample collection. Perform routine in vitro tissue culture procedures Support pharmacology studies assessing efficacy, tolerability, pharmacodynamic biomarkers, dose-response relationships, schedule optimization, and combination strategies. Prepare, review, and follow study protocols, dosing schedules, randomization plans, and sample collection timelines in alignment with project goals and internal standards. Maintain accurate, timely, and compliant study records using electronic data capture systems and approved documentation practices. Coordinate with project line leads, vivarium operations, pathology, toxicology translational scientists, bioanalytical, pharmacodynamic and pharmacokinetic teams, and external partners to enable efficient study execution. Assist with data quality review, graphical summaries, and interpretation of in vivo study results. Ensure all work is conducted in accordance with IACUC protocols, animal welfare expectations, biosafety requirements, and Pfizer internal policies. Minimum Qualifications / Key Skills Bachelor’s degree in biology, pharmacology, animal science, cancer biology, or a related discipline with relevant research experience. Hands-on experience conducting rodent in vivo studies in an academic, biotechnology, pharmaceutical, or contract research setting. Demonstrated proficiency with tumor implantation, tumor measurement, animal monitoring, dosing (IV, PO, subQ, IP), sample collection, and study documentation. Working knowledge of oncology pharmacology concepts, including tumor growth inhibition, response assessment, dose scheduling, tolerability, and pharmacodynamic endpoint collection. Ability to follow protocols precisely, recognize technical or animal welfare concerns, and escalate issues appropriately. Strong attention to detail, organizational skills, and ability to manage study activities across multiple concurrent programs. Effective written and verbal communication skills and ability to work collaboratively in a matrixed scientific environment. Application of technical expertise to moderately complex procedures and contribution to troubleshooting under guidance from senior scientists or in vivo study leads. Accountability for assigned study activities and contribution to team goals, timelines, and quality expectations. Preferred Qualifications Experience supporting ADC, targeted therapy, immuno-oncology, or combination oncology programs. Familiarity with ADC-specific pharmacology considerations such as payload potency, linker stability, antigen expression, exposure-response relationships, and tolerability liabilities. Experience with ex vivo tissue processing, biomarker sample collection, necropsy, flow cytometry sample preparation, or molecular endpoint workflows. Experience with ex vivo/ in vitro method execution, eg flow cytometry, cell line assays, molecular biological and biochemical procedures Familiarity with electronic data systems such as Studylog or similar in vivo study management platforms. AALAS certification or equivalent training in animal care and use. PHYSICAL/MENTAL REQUIREMENTS requires physical ability to perform lab and vivarium work NON-STANDARD WORK SCHEDULE, TRAVEL OR ENVIRONMENT REQUIREMENTS might require some weekend work Relocation support available Work Location Assignment: On Premise The annual base salary for this position ranges from $79,400.00 to $132,400.00. In addition, this position is eligible for participation in Pfizer’s Global Performance Plan with a bonus target of 7.5% of the base salary. We offer comprehensive and generous benefits and programs to help our colleagues lead healthy lives and to support each of life’s moments. Benefits offered include a 401(k) plan with Pfizer Matching Contributions and an additional Pfizer Retirement Savings Contribution, paid vacation, holiday and personal days, paid caregiver/parental and medical leave, and health benefits to include medical, prescription drug, dental and vision coverage. Learn more at Pfizer Candidate Site – U.S. Benefits | (uscandidates.mypfizerbenefits.com). Pfizer compensation structures and benefit packages are aligned based on the location of hire. The United States salary range provided does not apply to Tampa, FL or any location outside of the United States. Relocation assistance may be available based on business needs and/or eligibility. Candidates must be authorized to be employed in the U.S. by any employer. U.S. work visa sponsorship (such as TN, O-1, H-1B, etc.) is not available for this role now or in the future. Sunshine Act Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws and implementing regulations. These laws and regulations require Pfizer to provide government agencies with information such as a health care provider’s name, address and the type of payments or other value received, generally for public disclosure. Subject to further legal review and statutory or regulatory clarification, which Pfizer intends to pursue, reimbursement of recruiting expenses for licensed physicians may constitute a reportable transfer of value under the federal transparency law commonly known as the Sunshine Act. Therefore, if you are a licensed physician who incurs recruiting expenses as a result of interviewing with Pfizer that we pay or reimburse, your name, address and the amount of payments made currently will be reported to the government. If you have questions regarding this matter, please do not hesitate to contact your Talent Acquisition representative. EEO & Employment Eligibility Pfizer is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender ex