Principal Toxicologist – Health Scientist – Risk Assessor
Posted 2026-05-06
Remote, USA
Full-time
Immediate Start
- Job Description:
- Lead and manage complex human health and ecological risk assessments for contaminants in soil, water, air, sediment, and consumer products
- Interpret and apply federal and state risk assessment guidance (e.g., USEPA, CalEPA, regional agencies)
- Provide technical oversight and quality assurance on deliverables
- Develop exposure scenarios for a wide range of receptors and pathways
- Provide litigation support services on matters involving conceptual site models and exposure pathways, toxicology, risk assessment, and general causation
- Communicate risk assessment findings to clients, regulators, and stakeholders through reports, presentations, and public meetings
- Support business development efforts by identifying new opportunities, preparing proposals, and cultivating client relationships
- Mentor and train associate and mid-level staff in risk assessment methodologies, toxicology, regulatory frameworks, and scientific best practices
- Collaborate with technical staff across disciplines and offices
- Requirements:
- Advanced degree in Toxicology, Public Health, Environmental Science, or related field;
- Minimum of 15 years of professional experience in toxicological sciences and human health risk assessment, with at least 5 years in a leadership or project management role;
- DABT Professional certification or others (e.g., CIH, etc.);
- Demonstrated expertise with federal and state risk assessment guidance and regulatory frameworks (e.g., CERCLA, RCRA, TSCA, DTSC, CalEPA, OEHHA);
- Experienced in effective risk communication to clients, regulators and public stakeholders through reports, presentations, public communication postings, and meetings;
- Proven ability to manage multiple projects, lead cross-discipline technical teams, and interface with clients and regulators;
- Commitment to staying abreast of emerging contaminants and issues pertinent to toxicology and risk assessment;
- Ability to work across geographies with experts in different offices;
- Strong mentoring, professional development of staff, and recruiting skills;
- Excellent technical writing, communication, and analytical skills;
- Litigation experience as a consulting and/or testifying expert.
- Valid driver's license with clear driving record required.
- Benefits:
- Health insurance
- 401(k) matching
- Flexible work hours
- Paid time off
- Professional development opportunities
- Ownership opportunities and profit-sharing