Principal Toxicologist – Health Scientist – Risk Assessor

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