Senior Toxicologist

Summary

This announcement has been amended to extend the Open Period from 9/22/2026 to 10/09/2026. This position is in Region 9, Land, Chemicals and Redevelopment Division, Resource Conservation and Recovery Act (RCRA) Branch, RCRA Site Remediation Section. About this organization: Region 9 This is an office-centered position--you must physically report to one of the duty stations stated in this announcement on a regular basis (location TBD after candidate selected).

Duties

You will: Provide scientific and policy guidance to agency programs, tribal, state, local, and other federal partners on toxicological impacts to human health and the environment, including water and sediment contamination. Develop risk communication products, written testimony, and verbal presentations to inform management, the public, and stakeholders about contamination risks, protective and preventive measures, and recommended actions. Evaluate toxicological investigations, regulations, assessments, and guidance documents to determine scientific validity, identify control measures, and support the development and interpretation of Agency policy. Consult with scientists, research organizations, and agency laboratories to identify research needs, provide technical and policy advice, and troubleshoot toxicology and risk assessment problems. You will spend less than 25% of your work time on contracts, grants/cooperative agreements, and/or interagency agreements. One or more positions may be filled (in the organization advertised and/or in other organizations), if appropriate to the position.

Qualifications

NOTE: You must meet qualification requirements, including any requirements described in the Education section, by the closing date of this announcement. In addition to the basic entry education requirements, you must have specialized experience and/or directly related education as described below: To qualify for the GS-14 level, you must have 1 year of full-time* specialized experience equivalent to at least the GS-13 level defined as conducting and/or leading toxicological evaluations and human health/ecological risk assessments for environmental contaminants; interpreting toxicity data, exposure pathways, dose-response relationships, and/or laboratory results to develop risk-based recommendations and support regulatory decisions; and providing authoritative guidance on toxicology issues to internal and external customers. You will need the following competencies in order to perform the duties of this position successfully: Strategic Thinking* Environmental Laws andRegulations* Written Communication Attention to Detail Technical Competence Reading Comprehension Scientific Research* Critical Thinking *You will be evaluated on these critical competencies. Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional, philanthropic, religious, spiritual, community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience. *If you have part-time work experience, read this: Part-Time Experience.

Education

Toxicologist: You must have a bachelor's or higher degree from an accredited or pre-accredited college or university in toxicology; or an appropriate discipline of the biological, medical, or veterinary sciences that included at least 30 semester hours in chemistry, biochemistry, or physiology, and 12 semester hours in toxicology. For information about accreditation requirements, visit Accreditation.