Jobs / United States / Pfizer INC
Senior Associate Scientist, ADC In Vivo Pharmacology
Pfizer INC · 🇺🇸 United States - California - San Diego
Sponsorship verdict
Sponsorship possible
One solid signal, not two — worth applying, and worth asking about sponsorship early.
- Employer is on a government sponsor recordThe US Department of Labor certified 40 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 9 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What Pfizer INC paid sponsored hires in similar roles3 certified filings for “SENIOR SCIENTIST” (Biochemists and Biophysicists) in CT: $120k–$128k, median $128k. Most were filed at wage level I (100%) — 1 lottery entry, ≈15% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
- Last confirmed live 2 days agoWhen a source last listed this job as open.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence; it is not legal advice and never a guarantee — the employer and the immigration authority decide. Sign in to factor in where you can already work.
Or apply yourself on the official page →
Sponsor Radar — Pfizer INC
The US Department of Labor certified 40 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. USCIS also records 9 H-1B approvals in FY2023. Source: LCA disclosure data (US Department of Labor (OFLC)).
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Pfizer INC →
About the role
Pfizer is seeking a motivated Senior Associate Scientist to join the In Vivo Pharmacology group within the Oncology Research Unit, with a focus on antibody-drug conjugate (ADC) programs. This role supports the execution of in vivo oncology studies that enable ADC discovery and preclinical development, including efficacy, tolerability, pharmacodynamic, and sample collection workflows. The ideal candidate will demonstrate strong technical aptitude, careful attention to detail, and a commitment to animal welfare, compliance, and high-quality study execution. The Senior Associate Scientist is expected to contribute as a dependable technical team member while building scientific understanding of oncology pharmacology and ADC-specific study requirements. Position Responsibilities • Conduct routine in vivo oncology study activities supporting ADC programs, including tumor measurements, body weight monitoring, clinical observations, dosing support, and sample collection. • Assist with execution of xenograft, syngeneic, and other oncology models under established protocols and guidance from study leads. • Support pharmacology studies evaluating ADC efficacy, tolerability, pharmacodynamic biomarkers, dosing schedules, and combination approaches. • Prepare study materials, confirm dosing and sampling schedules, and ensure study activities are performed according to approved protocols and SOPs. • Maintain accurate, timely, and compliant study records using approved electronic data capture and documentation systems. • Communicate study observations, technical issues, animal welfare concerns, and timeline risks promptly to managers and study line leads. • Collaborate with vivarium operations, project teams, pathology, bioanalytical, pharmacodynamic, and pharmacokinetic colleagues to support efficient study execution. • 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, or equivalent relevant laboratory experience. • Hands-on experience with rodent handling and in vivo procedures in a research, academic, biotechnology, pharmaceutical, or contract research setting. • Working proficiency with routine in vivo oncology techniques such as tumor measurement, animal monitoring, dosing support, sample collection, and study documentation. • Ability to follow study protocols, dosing schedules, sample collection plans, and SOPs with precision and attention to detail. • Basic understanding of oncology pharmacology concepts, including tumor growth, treatment response, tolerability monitoring, and pharmacodynamic endpoint collection. • Strong organizational skills and ability to support multiple concurrent study activities under guidance from supervisors or study leads. • Effective written and verbal communication skills and ability to work collaboratively within a multidisciplinary team. • Applies technical skills to routine and moderately complex procedures while developing independence and troubleshooting capability. • Demonstrates accountability for assigned tasks and contributes to team goals, study timelines, and quality expectations. Preferred Qualifications • Experience supporting ADC, targeted therapy, immuno-oncology, or oncology combination studies. • Familiarity with ADC pharmacology concepts such as target antigen expression, payload activity, linker stability, exposure-response relationships, and tolerability monitoring. • Experience with necropsy, tissue collection, blood collection, biomarker sample processing, or ex vivo endpoint workflows. • Familiarity with electronic in vivo study mana