Environmental Risk Assessor

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Job Description

AECOM is seeking an intermediate environmental risk assessor to join our Canada Remediation team. This role supports the delivery of high‑quality human health and ecological risk assessments across remediation projects in Canada, working under the guidance of senior technical leaders and project managers.

The successful candidate will contribute strong technical expertise, support junior staff, and collaborate with multidisciplinary teams to deliver defensible, regulator‑ready risk assessments that support site remediation and regulatory compliance.

Technical Delivery & Collaboration  

• Perform and support risk assessments from preliminary screening through detailed assessment stages.

• Develop and refine conceptual site models, identify exposure pathways, and evaluate receptors.

• Apply Canadian and provincial regulatory risk assessment guidance (human health and ecological).

• Collaborate with toxicologists, ecologists, biologists, engineers, and project managers to support integrated project delivery.

• Translate technical risk findings into clear, concise documentation for internal and external audiences.

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Project Support

• Support project managers with scope development, schedules, and budgets.

• Prepare technical content for reports, figures, tables, and appendices.

• Ensure work meets quality standards and regulatory requirements.

• Participate in client and regulator interactions as a technical contributor.

Mentorship & Team Collaboration   

• Provide day to day technical guidance and informal mentoring to junior staff.

• Contribute to a collaborative, technically strong team culture.

• Support knowledge sharing and continuous improvement within the team.

Technical Expertise

• Apply practical, fit‑for‑purpose approaches to scope and analysis.

• Ecological Risk Assessment:

  • Support design, evaluation, and interpretation of toxicity, bioaccumulation and ecological exposure studies.

  • Apply media‑specific screening criteria and weight‑of‑evidence approaches.

  • undefined

  • Human Health Risk Assessment:

    • Evaluate exposure scenarios, dose‑response relationships, and hazard characterization.

    • Support incorporation of emerging contaminants into risk assessments.