Senior Scientist, Toxicology

Full Timesenior

Philadelphia, PA; Somerset, New Jersey, United StatesPosted 14 days ago

Role Overview

Legendcareers is hiring a Senior Scientist, Toxicology. This is a full-time role in Philadelphia, PA; Somerset, New Jersey. posted 2 weeks ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.

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Job description

Legend Biotech is a global biotechnology company dedicated to treating, and one day curing, life-threatening diseases. Headquartered in Somerset, New Jersey, we are developing advanced cell therapies across a diverse array of technology platforms, including autologous and allogenic chimeric antigen receptor T-cell, T-cell receptor (TCR-T), and natural killer (NK) cell-based immunotherapy. From our three R&D sites around the world, we apply these innovative technologies to pursue the discovery of safe, efficacious and cutting-edge therapeutics for patients worldwide.

Legend Biotech entered into a global collaboration agreement with Janssen, one of the pharmaceutical companies of Johnson & Johnson, to jointly develop and commercialize ciltacabtagene autolecuel (cilta-cel). Our strategic partnership is designed to combine the strengths and expertise of both companies to advance the promise of an immunotherapy in the treatment of multiple myeloma.

Legend Biotech is seeking a Sr. Scientist, Toxicology as part of the Early Drug Development team based in Somerset, NJ or Philadelphia, PA.

Role Overview

Legend Biotech is seeking a Sr. Scientist, Toxicology to support nonclinical development and safety assessment across cell and gene therapy programs. This individual will contribute to nonclinical strategy from discovery through IND-enabling development and support regulatory submissions for innovative advanced therapies. The role requires scientific expertise in toxicology, a foundation in pharmacology, understanding of regulatory expectations, and the ability to work effectively across cross-functional teams in a fast-paced biotech environment.

Key Responsibilities

Support toxicology activities for discovery and development-stage cell and gene therapy programs.
Design, monitor, interpret, and report nonclinical safety, pharmacology, biodistribution, and pharmacokinetic studies.
Support integrated interpretation of toxicology and pharmacology data to enable candidate selection, risk assessment, and program progression.
Contribute to study strategy and execution at CROs, including protocol review, study monitoring, data interpretation, and final report review.
Partner closely with Pharmacology, CMC, Clinical, Regulatory Affairs, and Program Management teams to advance development programs.
Support preparation of regulatory documents, including briefing packages, pre-IND/IND submissions, investigator brochures, and responses to health authority questions.
Contribute to safety risk assessments related to target biology, exaggerated pharmacology, off-target effects, immunogenicity, genome-related risks, and long-term safety.
Interpret complex nonclinical datasets and communicate key findings and recommendations clearly to internal stakeholders.
Stay current with scientific and regulatory advances relevant to toxicology, pharmacology, and cell and gene therapy development.
Support in vivo pharmacology activities, when needed, through integrated assessment of efficacy, disposition, and safety findings.

Requirements

Ph.D., DVM, PharmD, or equivalent degree in Toxicology, Pharmacology, Immunology, or a related discipline.
Minimum of 5 years of experience in nonclinical toxicology or a related field within biotechnology or pharmaceutical R&D, with working knowledge of pharmacology principles.
Experience supporting cell therapy, gene therapy, biologics, or other advanced therapeutic platforms preferred.
Working knowledge of GLP toxicology studies, nonclinical pharmacology studies, CRO management, and regulatory expectations for nonclinical development.
Experience contributing to IND/CTA-enabling packages and global regulatory submissions is highly desirable.
Understanding of FDA, EMA, and ICH regulations pertaining to toxicology and cell and gene therapy development.
Scientific writing, communication, and presentation skills.
Ability to work independently while thriving in a collaborative, matrixed team environment.

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The base pay range below is what Legend Biotech USA Inc. reasonably expects to offer at the time of posting. Actual compensation may vary based on experience, skills, qualifications, and geographic location. The company reserves the right to modify this range as needed and in accordance with applicable laws.

Other Types of Pay: Performance-based bonus and/or equity is available to employees in eligible roles.

Benefits and Paid Time Off: Medical, dental, and vision insurance as well as a 401(k) retirement plan with a company match that vests fully on day one. We offer eight (8) weeks of paid parental leave after just three (3) months of employment, and a paid time off policy that includes vacation time, personal time, sick time, floating holidays, and eleven (11) company holidays. Additional voluntary benefits include flexible spending and health savings accounts, life and AD&D insurance, short- and long-term disability coverage, legal assistance, and supplemental plans such as pet, critical illness, accident, and hospital indemnity insurance. We also provide voluntary commuter benefits, family planning and care resources, well-being initiatives, and peer-to-peer recognition programs; demonstrating our ongoing commitment to building a culture where our people feel empowered, supported, and inspired to do their best work.

Pay Range (Base Pay):

$127,313—$167,099 USD

Please note: These benefits are offered exclusively to permanent full-time employees. Contractors are not eligible for benefits through Legend Biotech.

EEO Statement

It is the policy of Legend Biotech to provide equal employment opportunities without regard to actual or perceived race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, related medical conditions and lactation), gender identity or gender expression (including transgender status), sexual orientation, marital status, military service and veteran status, disability, genetic information, or any other protected characteristic under applicable federal, state or local laws or ordinances.

Employment is at-will and may be terminated at any time with or without cause or notice by the employee or the company.

For information related to our privacy notice, please review: Legend Biotech Privacy Notice.

About Legendcareers

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Frequently Asked Questions

How do I apply for the Senior Scientist, Toxicology position at Legendcareers?

Use the Apply button above to submit your application directly to Legendcareers. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Senior Scientist, Toxicology position at Legendcareers located?

This position is based in Philadelphia, PA; Somerset, New Jersey. Legendcareers has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Senior Scientist, Toxicology at Legendcareers earn?

Legendcareers has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Senior Scientist, Toxicology role at Legendcareers posted?

This role was posted on June 26, 2026 (14 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.

How much experience does the Senior Scientist, Toxicology role at Legendcareers require?

This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Legendcareers lists their specific requirements in the description below, so review the must-have qualifications closely before applying.