Mid-Career Toxicologist, Risk Assessor

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Mid-Level Toxicologist/Risk Assessor at Gradient evaluating toxicological data and assessing risks related to human and environmental exposure. Join an environmental consulting firm specializing in risk sciences.

Posted 5/4/2026full-timeCrofton • Florida, Maryland, Massachusetts • 🇺🇸 United StatesSeniorLead💰 $107,160 - $172,530 per yearWebsite

About the role

Key responsibilities & impact

Critically evaluate animal and in vitro toxicological data and results to assess potential for human health risks from exposure to chemicals in the environment and consumer products.
Perform various analyses in support of toxicology projects, including tabulation of toxicology study data and evaluation of results, for reports, systematic reviews, and hazard assessments.
Conduct literature searches and critically review and evaluate toxicology studies for strengths and weaknesses regarding study quality, relevance, and reliability for use in human health risk assessment.
Project work related to toxicology may include systematic reviews, hazard assessments, occupational health and safety assessments, litigation support, regulatory comment, product safety assessments, and site-specific human health risk assessments.
Assist in the preparation of deliverables (reports, manuscripts, memoranda, presentations, project proposals, agency comments).
Opportunities to manage small- to medium-sized projects.

Requirements

What you’ll need

Bachelor's or Master's degree in toxicology or related sciences. (required)
Ph.D. in toxicology or related field. (preferred)
At least 7 years (8+ preferred) related to toxicology; or equivalent combination of education and experience. (required)
Exceptional written and oral communication skills. (required)
Scientific writing experience in the form of first-author peer-reviewed publications related to the field of toxicology, as well as experience presenting data at scientific conferences. (required)
Hands-on laboratory background and experience in chronic in vivo toxicity assays, and/or molecular/mechanistic toxicology or related sciences, including conducting in vivo (animal) and/or in vitro (e.g., cell culture) experiments and data collection, analysis, and reporting/synthesis of results. (required)
Knowledge of exposure and dose-response modeling methods and tools ( e.g ., benchmark dose [BMD] modeling, physiologically based pharmacokinetic [PBPK] modeling). (valuable)
Knowledge of food additive, consumer or medical product, pharmaceutical, pesticide, chemical, occupational, or environmental regulations, air modeling, and other exposure assessment techniques. (valuable)
Background in conducting or contributing to systematic reviews. (valuable)

Benefits

Comp & perks

paid holidays
vacation
sick
personal paid time off
medical
dental
vision
life
disability insurance
401(k)
other benefits to eligible employees

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

toxicologychronic in vivo toxicity assaysmolecular toxicologyin vitro experimentsdata collectiondata analysisscientific writingsystematic reviewshazard assessmentsexposure modeling

Soft Skills

written communicationoral communicationproject management

Certifications

Bachelor's degree in toxicologyMaster's degree in toxicologyPh.D. in toxicology