Barr is seeking an environmental toxicologist to support complex, multidisciplinary projects focused on contaminated sediment, surface water, groundwater, and ecological risk assessment. In this hybrid role, you will support the Assessment and Remediation business unit. Assignments may include conducting ecological risk assessments; developing toxicity and exposure evaluations for contaminated sediment projects; interpreting environmental chemistry and toxicology data; preparing technical reports, study design and sampling plans, and quality assurance documentation; and contributing to projects conducted under CERCLA, RCRA, NEPA, NRDA, and other federal and state environmental programs. The ideal candidate brings strong analytical judgment, excellent technical writing skills, advanced knowledge of environmental toxicology, and experience working within the regulatory frameworks that guide contaminated site cleanup. They demonstrate leadership, the ability to coordinate multiple priorities, and the interpersonal skills needed to work effectively with colleagues, clients, agencies, and stakeholder groups. Above all, they value teamwork, quality, and integrity in delivering impactful environmental solutions.