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Added 1 hour ago
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Stantec

Senior Environmental Risk Assessor

100-300 Hagey Boulevard, Waterloo, ON, N2L 0A4, Canada

Job type: Full-time
Working hours: 20 hours per week
Posting language: English
Posted: Sep 28, 2026

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Original job description

Your Opportunity

Stantec is seeking a Senior Risk Assessor to join our Toxicology and Health Risk Assessment team out of one of our Ontario offices (negotiable office location). Our team provides human health and ecological risk assessment services in a variety of sectors, including infrastructure, mining, energy, manufacturing, government, insurance, and commercial real estate. Our group is dedicated to managing environmental issues professionally and proactively. Our staff of professionals includes specialists in contaminant fate and transport, risk assessment, risk management, site remediation, and risk communication.

Our team members have the opportunity to be involved in a variety of projects evaluating human health and ecological concerns associated with contaminants in the environment, identifying risk management measures and providing solutions for our clients to manage their environmental risk.

In this senior role, you will act as a technical leader, project manager, mentor, and trusted advisor to clients and regulators on complex contaminated site projects across Ontario and Canada.

Stantec values work-life balance and is an equal equity employer.

Your Key Responsibilities

Lead and manage complex human health and ecological risk assessments in accordance with Ontario Regulation 153/04
Act as a Qualified Person for Risk Assessment (QPRA) and provide senior technical oversight and review of risk assessment submissions
Lead the preparation of Risk Management Plans (RMPs)
Collaborate with Stantec’s Site Investigation and Remediation team on conceptual site models, soil vapour assessments, and meeting regulatory requirements
Manage project scope, schedules, budgets, resources, quality, and client expectations
Provide mentorship and technical guidance to junior and intermediate risk assessment staff.
Represent clients in discussions with regulators, including the Ministry of the Environment, Conservation and Parks (MECP), and other stakeholders

Qualifications

Your Capabilities and Credentials

Demonstrated leadership, mentoring, and project management experience
Strong understanding of Ontario contaminated sites regulations, risk assessment approvals, risk management plans and brownfield redevelopment
Excellent technical writing and oral communication skills
Highly organized and self-motivated
Excellent problem-solving skills, and ability to work under pressure and within short timelines
Proficient with Microsoft Office software suite (Word, Excel, Outlook, PowerPoint, etc.)
Valid Ontario driver’s license
Ability to obtain federal reliability security clearance

Education and Experience

A bachelor’s or master’s Degree in one of the Environmental Sciences (Toxicology, Biology, Chemistry, Earth Sciences, etc.), Environmental Engineering, or equivalent Qualified Person for Risk Assessment (QPRA) under O. Reg. 153/04 is required Qualified Person for Environmental Site Assessment (QPESA) under O. Reg. 153/04 is considered a strong asset Registered Professional Engineer (P.Eng.) in Ontario is considered a strong asset Ten (10) to fifteen (15) years of environmental consulting experience with a focus on human health risk assessment, ecological risk assessment, soil vapour assessment, contaminated sites, and risk management planning Demonstrated experience preparing and implementing Risk Management Plans (RMPs) and supporting redevelopment projects through the Record of Site Condition (RSC) process Experience managing multidisciplinary project teams, mentoring technical staff, and leading client relationships Business development, proposal management, and client account experience are considered strong assets

This description is not a comprehensive listing of activities, duties or responsibilities that may be required of the employee and other duties, responsibilities and activities may be assigned or may be changed at any time with or without notice.

About Stantec

Stantec is a global leader in sustainable engineering, architecture, and environmental consulting. The diverse perspectives of our partners and interested parties drive us to think beyond what’s previously been done on critical issues like climate change, digital transformation, and future-proofing our cities and infrastructure. We innovate at the intersection of community, creativity, and client relationships to advance communities everywhere, so that together we can redefine what’s possible.

#StayInquisitive

Grounded in safety, quality, and ethics, our experts lead their fields with dedication, a creative spirit, and a vision for growth. We draw from more than 20 technical specialties worldwide and are devoted to fostering a community of diverse talents, backgrounds, and expertise. Here, you can apply your passion and collaborate with top environmental professionals on work that’s vital to our clients and the communities they serve.

Join a team that’s naturally committed to the environment.

Pay Transparency: In compliance with pay transparency laws, pay ranges are provided for positions in locations where required. Please note, the final agreed upon compensation is based on individual education, qualifications, experience, and work location. At Stantec certain roles are bonus eligible. Actual compensation for part-time roles will be pro-rated based on the agreed number of working hours per week.

Benefits Summary: Regular full-time and part-time employees (working at least 20 hours per week) will have access to health, dental, and vision plans, a wellness program, health care spending account, wellness spending account, group registered retirement savings plan, employee stock purchase program, group tax-free savings account, life and accidental death & dismemberment (AD&D) insurance, short-term/long-term disability plans, emergency travel benefits, tuition reimbursement, professional membership fee coverage, and paid time off.

Temporary/casual employees will have access to group registered retirement savings plan, employee stock purchase program, and group tax-free savings account.

The benefits information listed above may not apply to union positions because benefits for such positions are governed by applicable collective bargaining agreements.

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More about this job

Responsibilities

Lead and manage complex human health and ecological risk assessments while acting as a Qualified Person for Risk Assessment (QPRA). Provide senior technical oversight, mentor junior staff, and manage project budgets, schedules, and client relationships.

Requirements

Requires a bachelor's or master's degree in environmental science or engineering and 10 to 15 years of relevant consulting experience. Must hold a QPRA designation under Ontario Regulation 153/04 and possess strong knowledge of contaminated site regulations.

Skills

Risk assessment
Project management
Technical leadership
Contaminated site remediation
Risk management plans
Regulatory compliance
Technical writing
Mentoring
Stakeholder management
Human health risk assessment
Ecological risk assessment
Soil vapour assessment
Conceptual site models
Brownfield redevelopment
Business development
Proposal management

Benefits

Health insurance
Dental insurance
Vision insurance
Wellness program
Health care spending account
Wellness spending account
Employee stock purchase program
Group tax-free savings account
Life insurance
Accidental death and dismemberment insurance
Short-term disability plan
Long-term disability plan
Emergency travel benefits
Tuition reimbursement
Professional membership fee coverage
Paid time off

Visa sponsorship

Not detected in the job text

Keywords

Environmental consulting
Toxicology
Biology
Chemistry
Earth sciences
Environmental engineering
O. Reg. 153/04
QPRA
QPESA
P.Eng.
Record of Site Condition
RSC
MECP
Contaminant fate and transport
Risk communication
Microsoft Office
Sustainability
Infrastructure
Mining
Energy
Manufacturing
Government
Insurance
Commercial real estate

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