ZipRecruiter

Log In

1

Freelance Risk Assessment Toxicologist Jobs (NOW HIRING)

Integral Consulting Inc

Human Health Risk Assessor

$90K - $110K/yr

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 ...

Wood Plc

Human Health Risk Assessor

Chelmsford, MA · On-site +1

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 ...

WSP

Senior Ecological Risk Assessor

Atlanta, GA · On-site

$103K - $166K/yr

The successful candidate will collaborate with our current team of risk assessment team members to support our growing risk assessment and toxicology practice in project planning and execution as ...

WSP

Senior Ecological Risk Assessor

Atlanta, GA · On-site

$103K - $166K/yr

The successful candidate will collaborate with our current team of risk assessment team members to support our growing risk assessment and toxicology practice in project planning and execution as ...

Wood Plc

Senior Risk Assessor

Lexington, KY · On-site +1

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

Exponent Inc.

Principal Toxicologist (Ph.D.)

Oakland, CA · On-site

$200K - $300K/yr

... Toxicologist position in our Health Sciences Practice . This position is open to all U.S. office ... risk assessment, and risk communication involving a wide range of products and chemicals. This ...

Wood Plc

Senior Risk Assessor

Knoxville, TN · On-site +1

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

Wood Plc

Senior Risk Assessor

Louisville, KY · On-site +1

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

Wood Plc

Senior Risk Assessor

Nashville, TN · On-site +1

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

Wood Plc

Senior Risk Assessor

Birmingham, AL · On-site +1

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

Exponent Inc.

Principal Toxicologist (Ph.D.)

Oakland, CA · On-site

$200 - $300/hr

... Toxicologist position in our Health SciencesPractice . This position is open to all U.S. office ... risk assessment, and risk communication involving a wide range of products and chemicals. This ...

previous pagenext page

Showing results 21-40

All JobsRisk Assessment Toxicologist JobsFreelance Risk Assessment Toxicologist Jobs

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 Aug 15, 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:

Freelance Risk Assessment Toxicologist jobs near you
Infographic showing various Freelance Risk Assessment Toxicologist job openings in the United States as of August 2026, with employment types broken down into 76% Full Time, 6% Part Time, 3% Temporary, 12% Contract, and 3% Nights. Highlights an 97% In-person, and 3% Remote job distribution, with an average salary of $115,369 per year, or $55.5 per hour.

Early Career Human Health Risk Assessor

WSP

Chelmsford, MA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 6 days ago

WSP rating

8.6

Company rating: 8.6 out of 10

Based on 69 frontline employees who took The Breakroom Quiz

17th of 72 rated business consultants

Job description

This Opportunity

WSP is currently initiating a search for a Early Career Human Health Risk Assessor for our Chelmsford, Massachusetts office. Be involved in projects with our Earth & Environment Team and be a part of a growing organization that meets our client's objectives and solves their challenges.

Are you looking to explore or grow a career as a human health risk assessor, working with common and emerging contaminants for a variety of government and commercial clients? This job opening provides you an opportunity to progress while working in an established environmental consulting firm that values its employee's enthusiasm and technical contributions. We encourage you to apply for this opportunity.

 We are seeking a motivated candidate who is willing to learn to join our current team of risk assessment professionals in executing risk assessments as well as project planning, public outreach, and stakeholder communication. Risk assessments will be prepared to meet the requirements of the United States Environmental Protection Agency, the Massachusetts Department of Environmental Protection, and many other States' environmental regulatory programs.

Your Impact

This position will involve the implementation of project work associated with multimedia (air, water, soil, and biota) risk assessments. The selected candidate will contribute to the preparation of risk assessment reports as a member of project-specific risk assessment teams. This position offers the opportunity to learn from and grow with an established risk practice and to address complex environmental challenges by executing the following roles/responsibilities:

  • Extensively use Microsoft Excel to analyze chemical data and calculate human exposure risk.
  • Learn and use standard risk assessment spreadsheet tools.
  • Learn and understand regulatory and technical requirements for conducting risk assessments under specific regulatory programs.
  • Document in written text risk assessment activities that have been completed, including data evaluation. selection of chemicals of potential concern, exposure assessment, toxicity assessment, and calculations of cancer risk and noncancer hazard (both routine and non-routine calculations).
  • Conduct quality assurance/quality control activities for work products prepared by colleagues.
  • Conduct work activities within identified budget and schedule requirements.
  • Contribute to the preparation of proposals to win new work for small and large projects that include a risk assessment component.
  • May contribute to technical presentations or papers for publication.
  • Who You Are

Required Qualifications

  • Bachelor's Degree in Toxicology, Biology, Public Health, or related scientific discipline
  • 0-1 year of relevant experience in human health risk assessment
  • Knowledge of the principles and standards of scientific study
  • Familiarity using Microsoft Excel for the presentation of data, calculations, and data evaluation
  • Strong technical writing skills
  • Ability to communicate effectively, both verbally and in writing, listen and engage, including communicating technical information effectively
  • Ability to work effectively with team members as well as independently
  • Troubleshooting and problem-solving skills
  • Must be well organized, able to manage and prioritize several assignments at one time, and deliver on time and within budget

Preferred Qualifications:

  • Master's Degree  in Toxicology, Biology, Public Health, or related scientific discipline
  • Knowledge of human health risk assessment principles, procedures, and guidance particularly USEPA CERCLA and MCP is desirable
  • Experience with risk assessment-specific tasks (presentation of analytical data and dose-response data, selection of chemicals of potential concern, calculation of exposure point concentrations (Excel and PRO UCL), and calculation of cancer risk and Hazard Index) is desirable
  • Experience with per- and polyfluoroalkyl substances is desirable
  • Experience or interest in ecological risk assessment is a bonus

#LI-JA1

About WSP

WSP USA is the U.S. operating company of WSP, one of the world's leading engineering and professional services firms. Dedicated to serving local communities, we are engineers, planners, technical experts, strategic advisors and construction management professionals. WSP USA designs lasting solutions in the buildings, transportation, energy, water and environment markets. With more than 15,000 employees in over 300 offices across the U.S., we partner with our clients to help communities prosper.

www.wsp.com

WSP provides a flexible and agile workplace model while meeting client needs. Employees are also afforded a comprehensive suite of benefits including medical, dental, vision, disability, life, and retirement savings focused on providing health and financial stability throughout the employee's career.

At WSP, we want to give our employees the challenges they seek to grow their careers and knowledge base. Your daily contributions to your team will be essential in meeting client objectives, goals and challenges. Are you ready to get started?

WSP USA (and all of its U.S. companies) is an Equal Opportunity Employer Race/Age/Color/Religion/Sex/Sexual Orientation/Gender Identity/National Origin/Disability or Protected Veteran Status.

The selected candidate must be authorized to work in the United States.

NOTICE TO THIRD PARTY AGENCIES:

WSP does not accept unsolicited resumes from recruiters, employment agencies, or other staffing services. Unsolicited resumes include any resume or hiring document sent to WSP in the absence of a signed Service Agreement where WSP has expressly requested recruitment/staffing services specific to the position at hand.  Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service. 

What WSP employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply