Geosyntec has an exciting opportunity for an exceptional Environmental Risk Assessor with at least 7 years (8+ preferred) of applied human health and ecological risk assessment experience to join our team in Toronto, Waterloo, Guelph, Cambridge, Kingston, or Ottawa, Ontario . Geosyntec is an innovative, international engineering and consulting firm serving private and public‑sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world.

Ranked by Engineering News‑Record (ENR) as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

We offer competitive pay and perks, and well‑being programs to support you and your family. Lead and support human health and ecological risk assessments, analyze exposures to soil, groundwater, sediment, surface water, soil vapour, and indoor air for various chemicals, in accordance with O. 153/04 and other provincial/federal risk assessment frameworks

- Review Environmental Site Assessment reporting and data; complete data gap analysis to support data needs and requirements for risk assessment projects
- Evaluate chemical data and complete contaminant fate & transport modelling
- Mentor and train early‑ and mid‑career level staff
- Develop Human Health and Ecological Conceptual Site Models, complete quantitative and qualitative evaluations of risk, write risk assessment reports, and support development of risk management plans




- Provide project and/or task management support, including budget tracking and invoicing
- Bachelor’s degree in environmental science/toxicology, biological science, civil or chemical engineering, or related field. (Advanced degree in environmental science/toxicology, biological science, civil or chemical engineering or related field. (At least 7 years (8+ preferred) of human health and ecological risk assessment experience in Ontario or equivalent combination of education and experience. (Qualified Person for Risk Assessment (“QPRA”), or the ability to become recognized as QPRA per Section 6 of O.153/04 and other provincial/federal guidelines (i.e., Canadian Council of Ministers of the Environment (CCME), Environment and Climate Change Canada (ECCC), Health Canada) for risk assessment. Strong data analysis skills including statistical analysis, experience with ProUCL or other statistical software programs an asset.

Experience with environmental modeling tools such as MECP MGRA, J&E; Model, Health Canada PQRA.

Experience with Phase One and Two Environmental Site Assessments (ESAs) and Phase Two Conceptual Site Models (CSMs) in accordance with both CSA and O.153/04 requirements is considered an asset.

Experience with US federal (RCRA) or state risk assessment is considered an asset. 406/19 and experience with Beneficial Reuse Assessment Tool (BRAT) is considered an asset. Ability to succeed in a fast‑paced consulting environment, handling multiple project assignments, meeting quality/budget/schedule expectations.

Valid

Canadian driver’s license and a satisfactory driving record for business travel. (

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