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Toxicology Jobs (NOW HIRING)

Legend Biotech US

Sr. Scientist, Toxicology

Philadelphia, PA · Hybrid

$92K - $126K/yr

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 ...

Legend Biotech USA, Inc.

$92K - $126K/yr

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

Inotiv

Director, Toxicology

Gaithersburg, MD · On-site

$120.20 - $175K/hr

The Director of Toxicology is the scientific leader for the site and serves as a mentor and manager for a group of Study Directors overseeing general toxicology and safety pharmacology studies. As a ...

Soft Tox

Toxicology PostDoc Fellow

Houston, TX · On-site

$50 - $70/hr

The Toxicology PostDoctoral Fellow (PostDoc Fellow 2) will be trained in the development and validation of analytical procedures to current forensic quality assurance standards, and exposed to ...

Socket.dev

Senior Director, Toxicology

Redwood City, CA · On-site

$244 - $305/hr

We are seeking an experienced senior toxicologist, who combines scientific excellence with strategic leadership, for our Toxicology group within the Nonclinical Development and Clinical Pharmacology ...

Inotiv

Director, Toxicology

Gaithersburg, MD · On-site

$120.20 - $175K/hr

The Director of Toxicology is the scientific leader for the site and serves as a mentor and manager for a group of Study Directors overseeing general toxicology and safety pharmacology studies. As a ...

Legend Biotech US

Sr. Scientist, Toxicology

Philadelphia, PA · On-site

$92K - $126K/yr

Support toxicology activities for discovery and development-stage cell and gene therapy programs. * Design, monitor, interpret, and report nonclinical safety, pharmacology, biodistribution, and ...

Vir Biotechnology

Director, Toxicology

San Francisco, CA · On-site

$203K - $284K/yr

THE OPPORTUNITY Vir Biotechnology is seeking an experienced Director, Toxicology to lead nonclinical safety strategies across our infectious disease and oncology portfolio. In this role, you will ...

Harris County

Toxicology PostDoc Fellow

Houston, TX · On-site

$41K/yr

Brief Toxicology PostDoc Fellow (PostDoc Fellow 2) Overview: The Toxicology PostDoctoral Fellow (PostDoc Fellow 2) will be trained in the development and validation of analytical procedures to ...

Vir Biotechnology

Director, Toxicology

San Francisco, CA · On-site

$203K - $284K/yr

THE OPPORTUNITY Vir Biotechnology is seeking an experienced Director, Toxicology to lead nonclinical safety strategies across our infectious disease and oncology portfolio. In this role, you will ...

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$41K

$115.4K

$214K

How much do toxicology jobs pay per year?

As of Sep 7, 2026, the average yearly pay for toxicology in the United States is $115,369.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,000.00 and $135,500.00 per year, depending on experience, location, and employer.

What is toxicology?

Toxicology is the scientific study of the adverse effects of chemicals and substances on living organisms, including humans, animals, and the environment. Toxicologists investigate how toxins and poisons interact with biological systems, assess risks, and help develop safety guidelines for exposure to various substances. Their work is crucial in fields like medicine, environmental science, pharmaceuticals, and regulatory agencies to ensure public safety.

What are toxicology jobs?

Toxicology jobs study the effects of toxins on the human body. As a toxicologist, you may research pharmaceuticals in a laboratory to see if they're safe for human use, analyze a chemical to determine its potential risk, or study potential pollutants to help determine whether or not they need regulation. Laboratory assistants and other research staff frequently support toxicologists. Many people in this field work in controlled environments to limit potential exposure to toxins, so the ability to learn and follow safety protocols is essential to your success. Also, toxicology research tends to be slow and methodical, as different people react to chemicals in different ways, so most research involves testing a variety of circumstances to gain a complete understanding of a potential toxin's interactions with the human body.

What are the key skills and qualifications needed to thrive as a toxicologist, and why are they important?

To thrive as a Toxicologist, you need a strong background in biology, chemistry, and toxicology, often supported by at least a bachelor's degree in a related field and, frequently, a master's or PhD. Familiarity with laboratory instrumentation, analytical techniques like mass spectrometry, and regulatory compliance systems such as GLP (Good Laboratory Practice) is essential. Critical thinking, attention to detail, and strong written and verbal communication skills help toxicologists analyze data and convey findings to diverse audiences. These skills ensure accurate risk assessments, regulatory compliance, and effective communication of safety information in public health and industry settings.

What are the typical challenges faced by toxicologists when interpreting complex data sets in their daily work?

Toxicologists often work with large, multifaceted data sets that require careful analysis to determine the effects of substances on biological systems. One common challenge is distinguishing between correlation and causation, especially when results are influenced by multiple variables. Additionally, toxicologists must ensure their findings are accurate, reproducible, and compliant with regulatory standards, which can require collaboration with statisticians, chemists, and regulatory affairs teams. Staying current with evolving testing methods and guidelines is also crucial for accurate data interpretation and risk assessment.

What is the difference between Toxicology vs Pharmacology?

AspectToxicologyPharmacology
Required credentialsBachelor's or Master's in Toxicology, certifications like TOXICOLBachelor's or Master's in Pharmacology, certifications like Board Certified Pharmacologist
Work environmentLaboratories, research facilities, regulatory agenciesHospitals, research labs, pharmaceutical companies
Industry usagePublic health, safety testing, regulatory complianceDrug development, clinical trials, medication management

While both toxicologists and pharmacologists work in related scientific fields, toxicologists primarily focus on the harmful effects of substances and safety assessments, whereas pharmacologists study how drugs interact with biological systems. Understanding these differences helps professionals choose the right career path and employers.

Is toxicology a good career?

Toxicology is a scientific field focused on studying the effects of chemicals on living organisms, often requiring a background in biology, chemistry, or related disciplines. Careers in toxicology can offer stable employment in industries such as pharmaceuticals, environmental health, and regulatory agencies, with opportunities for research, testing, and consulting. Advanced positions typically require a master's degree or Ph.D., and strong analytical skills are essential for success.

Where do toxicologists make the most money?

Toxicologists tend to earn higher salaries in industries such as pharmaceuticals, biotechnology, and chemical manufacturing, especially in roles involving research and development or regulatory compliance. They often earn more in regions with a high concentration of these industries and where there is strong demand for expertise in toxicology and safety assessment.
More about toxicology jobs

What cities are hiring for Toxicology jobs?

Cities with the most Toxicology job openings:

What are the most commonly searched types of Toxicology jobs?

The most popular types of Toxicology jobs are:

What states have the most Toxicology jobs?

States with the most job openings for Toxicology jobs include:

What job categories do people searching Toxicology jobs look for?

The top searched job categories for Toxicology jobs are:

toxicology jobs near you
Infographic showing various Toxicology job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 88% Full Time, 8% Part Time, 2% Contract, and 1% Nights. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $115,369 per year, or $55.5 per hour.

Sr. Scientist, Toxicology

Legend Biotech US

Philadelphia, PA • Hybrid

$92K - $126K/yr

Full-time

Re-posted 22 days ago

Job description

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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