1

Freelance Risk Assessment Toxicologist Jobs (NOW HIRING)

S. in Toxicology, Biology, Public Health or related scientific discipline * 2-8 years relevant experience in human health risk assessment * Knowledge of the principles and standards of scientific ...

Use of toxicology and exposure data in the development of risk assessments. Qualifications: * M.S. or Ph.D. in toxicology, pharmacology, chemistry or related life science, with 35 years of relevant ...

Master's degree in environmental health sciences, toxicology, public health, or a related scientific discipline with 8+ years of experience in human health risk assessment, preferably in a consulting ...

Knowledge of toxicology, statistics, human health risk assessment and regulatory compliance * Perform tasks involved with gathering field data for chemical concentrations, calculating human health ...

Knowledge of toxicology, statistics, human health risk assessment and regulatory compliance * Perform tasks involved with gathering field data for chemical concentrations, calculating human health ...

Knowledge of toxicology, statistics, human health risk assessment and regulatory compliance * Perform tasks involved with gathering field data for chemical concentrations, calculating human health ...

Knowledge of toxicology, statistics, human health risk assessment and regulatory compliance * Perform tasks involved with gathering field data for chemical concentrations, calculating human health ...

Knowledge of toxicology, statistics, human health risk assessment and regulatory compliance * Perform tasks involved with gathering field data for chemical concentrations, calculating human health ...

Use of toxicology and exposure data in the development of risk assessments. Qualifications: * M.S. or Ph.D. in toxicology, pharmacology, chemistry or related life science, with 3‑5 years of ...

next page

Showing results 1-20

Freelance Risk Assessment Toxicologist information

See salary details

$41K

$115.4K

$214K

How much do freelance risk assessment toxicologist jobs pay per year?

As of Jun 9, 2026, the average yearly pay for freelance risk assessment toxicologist 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 the difference between Freelance Risk Assessment Toxicologist vs Contract Toxicologist?

AspectFreelance Risk Assessment ToxicologistContract Toxicologist
CredentialsTypically requires certifications in toxicology, risk assessment, and relevant degreesSimilar credentials, often with additional industry-specific licenses
Work EnvironmentIndependent, project-based, often remote or client-siteTemporary employment at a company or lab, often on-site
Employer & Industry UsageUsed by consulting firms, freelance platforms, and clients needing specialized risk assessmentsEmployed by pharmaceutical, chemical, or environmental companies on a contractual basis

Both roles require similar toxicology expertise and certifications. The main difference lies in the work setup: Freelance Risk Assessment Toxicologists operate independently on a project basis, while Contract Toxicologists are hired temporarily by organizations. Your choice depends on your preferred work environment and career goals.

What are the key skills and qualifications needed to thrive as a Freelance Risk Assessment Toxicologist, and why are they important?

To thrive as a Freelance Risk Assessment Toxicologist, you need a solid background in toxicology, risk assessment methodologies, and regulatory guidelines, typically supported by an advanced degree in toxicology or a related field. Familiarity with tools like risk assessment software, statistical analysis programs, and knowledge of regulatory databases (e.g., EPA, REACH) is essential. Strong analytical thinking, attention to detail, and clear communication skills help convey complex findings to clients and stakeholders. These skills ensure accurate risk evaluations, compliance with regulations, and effective client collaboration in a specialized consulting environment.

What are some common challenges freelance risk assessment toxicologists face when managing multiple projects for different clients?

Freelance risk assessment toxicologists often juggle several projects at once, each with unique timelines, data requirements, and regulatory standards. One of the main challenges is ensuring rigorous data quality and consistency while adapting to various client expectations and communication styles. Time management and prioritization skills are crucial, as is staying up-to-date with the latest scientific research and regulatory changes. Building strong client relationships and maintaining clear documentation can help mitigate misunderstandings and streamline project delivery.

What does a Freelance Risk Assessment Toxicologist do?

A Freelance Risk Assessment Toxicologist evaluates the potential health risks posed by chemicals, pharmaceuticals, consumer products, or environmental exposures. They analyze scientific data to determine safe exposure levels and make recommendations to minimize harm to humans or the environment. As freelancers, they may work independently for various clients, such as regulatory agencies, corporations, or consulting firms, providing expert reports and guidance on toxicological risks.
More about Freelance Risk Assessment Toxicologist jobs
What cities are hiring for Freelance Risk Assessment Toxicologist jobs? Cities with the most Freelance Risk Assessment Toxicologist job openings:
What are the most commonly searched types of Risk Assessment Toxicologist jobs? The most popular types of Risk Assessment Toxicologist jobs are:
What states have the most Freelance Risk Assessment Toxicologist jobs? States with the most job openings for Freelance Risk Assessment Toxicologist jobs include:
What job categories do people searching Freelance Risk Assessment Toxicologist jobs look for? The top searched job categories for Freelance Risk Assessment Toxicologist jobs are:
Infographic showing various Freelance Risk Assessment Toxicologist job openings in the United States as of May 2026, with employment types broken down into 95% Full Time, and 5% Part Time. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $115,369 per year, or $55.5 per hour.
Ecological and Human Health Risk Assessor

Ecological and Human Health Risk Assessor

SRS

Milwaukee, WI • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted yesterday


Job description

Description:

Sustainment & Restoration Services (SRS) is an 8(a) firm that provides engineering, science, construction, munitions, and specialized professional services solutions for customers nationwide.


SRS has an immediate opening for an Ecological and Human Health Risk Assessor on a Temporary as Needed basis.

As an Ecological and Human Health Risk Assessor, you will play a critical role in conducting risk assessments for hazardous waste sites regulated under CERCLA and RCRA. You will evaluate both human health and ecological risks associated with contamination, prepare technical reports, and provide recommendations for site remediation. The ideal candidate will have a strong scientific background in environmental health, toxicology, and risk assessment, along with experience in environmental regulations and site assessments, including those specific to emerging contaminants like PFAS.

Key Responsibilities

  • Risk Assessment & Analysis: Conduct human health and ecological risk assessments for contaminated sites, including evaluating exposure pathways, contaminants, and potential impacts on human and ecological receptors.
  • Regulatory Compliance: Ensure all assessments are conducted in compliance with federal (EPA), state, and local environmental regulations, with a specific focus on PFAS regulations and guidelines as they evolve.
  • Data Collection & Evaluation: Coordinate the collection and analysis of environmental data (soil, water, air, and biological samples) to assess contamination levels and human and ecological exposure.
  • Reporting & Documentation: Prepare detailed Risk Assessment Reports, Feasibility Studies, and Health and Ecological Risk Assessments for use in the Remedial Investigation (RI) and Feasibility Study (FS) phases of CERCLA, and Corrective Action Plans for RCRA sites.
  • Exposure Modeling: Utilize risk assessment models (e.g., HAZUS, RESRAD) and environmental fate models to estimate exposure levels and predict potential human and ecological health impacts.
  • Stakeholder Engagement: Collaborate with regulatory agencies, project managers, clients, and other stakeholders to communicate risk assessment results and recommend mitigation strategies.
  • Site Characterization & Remediation Strategy Development: Provide technical support for site investigations, data interpretation, and development of remediation plans to address identified risks.
  • Emerging Contaminants: Stay updated on the latest scientific developments and regulatory changes related to PFAS, contributing expertise on emerging contaminant issues as they arise.
Requirements:

Qualifications:

  • Education:
    • Master’s degree or higher in Environmental Science, Toxicology, Ecology, or a related field.
    • Bachelor’s degree in a related field (e.g., Environmental Science, Biology, Chemistry) may be considered with significant relevant experience.
  • Experience:
    • Minimum of 15 years of experience in human health and ecological risk assessment, specifically for CERCLA and RCRA-regulated sites.
    • Knowledge of the latest regulatory frameworks, sampling methods, and exposure models related to PFAS.
    • Experience with Remedial Investigations (RI), Feasibility Studies (FS), and Corrective Action Plans under CERCLA and RCRA is highly preferred.
    • Expertise in evaluating risk for both human populations and ecological receptors (terrestrial, aquatic, wildlife).
  • Skills & Knowledge:
    • Proficient in risk assessment methodologies, including exposure assessment, hazard identification, and dose-response analysis.
    • Strong knowledge of EPA guidelines and other environmental regulations related to hazardous materials and site remediation.
    • Familiarity with environmental data analysis software (e.g., GIS).
    • Strong written and verbal communication skills, with the ability to present complex technical information to both technical and non-technical stakeholders.
  • Certifications:
    • Certified Hazardous Materials Manager (CHMM), Certified Environmental Professional (CEP), or similar certifications are a plus.
    • OSHA HAZWOPER certification preferred.

Benefits:

  • 15 Days of Paid Time Off
  • 8 Paid Holidays
  • 1 Flex Holiday
  • 401(k) Retirement Plan with Company Match
  • Medical, Dental, and Eye Insurance
  • Employee Referral Program
  • Tuition Reimbursement
  • Employee Assistance Program (EAP)
  • Wellness Program
  • Multiple Voluntary Medical Benefits

About Us:


The Oneida ESC Group is a family of companies owned by the Oneida Nation of Wisconsin that delivers customer-focused engineering, science, and construction services worldwide.

Our family of companies includes:

  • Oneida ESC Group (OESC)
  • Oneida Total Integrated Enterprises (OTIE)
  • Mission Support Services (MS2)
  • Sustainment & Restoration Services (SRS)
  • Oneida Engineering Solutions (OES)
  • General Mechanical Corporation (GMC)
  • Oneida Professional Services (OPS)
  • LG2 Environmental Solutions (LG2)
  • Oneida Environmental (OE)

We integrate our staff for dedicated, cooperative, and business-like delivery of services to enhance our customers’ missions.


Equal Employment Opportunity:

Oneida ESC Group is an equal opportunity employer committed to inclusion and diversity in the workplace. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws, national origin, disability, veteran status, or other legally protected characteristics.

Oneida ESC Group participates in the E-Verify program. Learn more about the E-Verify program. https://www.e-verify.gov/

Oneida ESC Group is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Oneida ESC Group makes hiring decisions based solely on qualifications, merit, and business needs at the time.