Senior Risk Assessment Specialist
- Mississauga, ON
- Hybrid
- Posted Oct 21, 2026
- 1 position
$85,000–$130,000 / year
Opens an external site
- Employment type
- Full-time
- Experience level
- Lead · 10+ years
- Minimum education
- Bachelor’s degree
- Posting language
- English
- Working hours
- 40 hours per week
Job summary
Lead complex human health and ecological risk assessment projects while providing technical direction in toxicology and regulatory interpretation. Direct multidisciplinary teams to develop risk management strategies and strengthen client relationships through trusted advisory services.
Job details
What if you could redefine what's possible? With us, you can. You want Purpose. Growth. Opportunity. People who get it. We are the home of ambitious, passionate, and innovative world shapers. With an unmatched breadth and depth of engineering, advisory and science-based expertise, our global minds unite to power local solutions. We are pathfinders and impact makers. We are Visioneers. We are WSP. The Opportunity Innovate and Lead — In this role, you'll be at the forefront of innovation, collaborating on transformative projects that push the boundaries of what's possible. If you're looking for a challenge that offers both career growth and the chance to make an impact, this is the opportunity for you. As a Senior Risk Assessment Specialist within WSP's Environmental Risk Assessment practice, you will help shape environmental risk management across Canada. You will provide technical leadership on complex human health and ecological risk assessment projects across a variety of sectors, translating scientific evidence into practical strategies that protect people and ecosystems, support sustainable development, and strengthen environmental decision-making. You will serve as a trusted advisor to clients and project teams, lead multidisciplinary assignments, mentor emerging professionals, and contribute to the continued growth of a nationally connected technical practice. Your Impact * Lead human health risk assessments, ecological risk assessments, exposure assessments, and related environmental health studies that inform confident project decisions. * Deliver senior technical direction in toxicology, exposure assessment, risk characterization, and regulatory interpretation for complex work across Canada. * Direct multidisciplinary teams to integrate environmental science, engineering, hydrogeology, geology, toxicology, and regulatory expertise into clear solutions. * Develop risk management strategies that advance remediation, environmental approvals, impact assessments, and contaminated sites management. * Strengthen client relationships by providing trusted advice throughout the project lifecycle and identifying opportunities to create greater value. * Mentor emerging risk assessment professionals and help build technical excellence across WSP's national risk assessment and toxicology practice. The Skills That Set You Apart * A bachelor's, master's, or doctoral degree in Toxicology, Environmental Science, Environmental Health, Public Health, Biology, Chemistry, Environmental Engineering, or related discipline. * Membership or eligibility for membership in a professional organization (e.g., QPRA, R.P.Bio., P.Geo., P.Eng., P.Ag., P.Chem.). * 10 to 15 years of experience in environmental risk assessment. * Extensive progressive experience conducting and leading human health and ecological risk assessments in environmental consulting (preferred), industry, or government. * Demonstrated expertise in Canadian federal and provincial risk assessment frameworks, technical guidance, and regulatory processes. * Advanced knowledge of toxicology, exposure modelling, fate and transport concepts, risk characterization, and environmental health science. * Proven ability to lead complex technical projects, budgets, schedules, quality reviews, and multidisciplinary teams toward defensible outcomes. * Strong technical writing and review capability, including authorship of senior-level risk assessment reports and clear communication of complex findings. * Experience building client relationships, developing proposals, supporting strategic planning, and pursuing opportunities that grow technical services. * A valid driver's license and the ability to travel periodically to client sites and project locations. Why Choose WSP? We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home. * Proudly Canadian – we are a Top 100 Employer in Canada for 2026 * A global community of brilliant minds – your next idea, mentor, or opportunity is always within reach. * Limitless opportunities start here. Whether it's across the country or around the globe, we'll help you tailor your role to match your ambition—because your growth drives ours. * Flexible work, real balance – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours. #WeAreWSP Compensation * ON: $85,000 – 130,000 Disclosure: The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes. Turn evidence into healthier outcomes Bring scientific depth and strategic perspective to decisions that protect human health, ecosystems, and the future of responsible development. Lead the insight that helps complex projects move forward with confidence. At WSP, we exist to shape communities to advance humanity. It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next. We are Visioneers. As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact. At WSP, you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose. Join us. Please Note: Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details here [https://www.wsp.com/en-ca/corporate/ca/health-safety]. Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits). WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process. WSP is committed to the principles of employment equity. Only the candidates selected will be contacted. WSP does not accept unsolicited resumes from agencies. Full details here [https://www.wsp.com/en-ca/careers/notice-to-staffing-agencies].
What you’ll do
Lead complex human health and ecological risk assessment projects while providing technical direction in toxicology and regulatory interpretation. Direct multidisciplinary teams to develop risk management strategies and strengthen client relationships through trusted advisory services.
Requirements
Requires a bachelor's, master's, or doctoral degree in a relevant scientific or engineering discipline and 10 to 15 years of experience in environmental risk assessment. Candidates must possess expertise in Canadian regulatory frameworks and hold or be eligible for professional membership.
Benefits
- Flexible work
- Professional development
- Mentorship programs
Listed skills
- Project management · Preferred
- Stakeholder Management · Preferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Human health risk assessment
- Ecological risk assessment
- Toxicology
- Exposure modelling
- Environmental health science
- Regulatory interpretation
- Technical leadership
- Project management
- Environmental consulting
- Stakeholder management
- Technical writing
- Strategic planning
- Remediation
- Contaminated sites management
- Multidisciplinary team leadership
- Communication
- Management
- Environment Health And Safety
- Risk Management
- Decision Making
- Innovation
- Resilience
- Biology
- Chemistry
- Risk Analysis
- Strategic Planning
- Technical Leadership
- Valid Driver's License
- Systems Development Life Cycle
- Environmental Health
- Public Health
- Regulatory Process
- Environmental Engineering
- Environmental Science
- Geology
- Employment Equity
- Technical Services
- Technical Projects
- Proposal Writing
- Disabilities
- Emerging Risk
- Health Risk Assessments
- Field Research
- Sustainable Development
- Customer Relationship Building
- Technical Writing
- Ecosystem Science
- Environmental Consulting
- Environmental Risk Assessment
- Hydrogeology
Job areas
- Environmental & Sustainability
- Science & Research
- Engineering
- Consulting
- Management & Leadership
- Risk Assessment Specialist
- Curriculum and Instructional Designer / Developer
- Education Methods Specialists
- Instructional Coordinators
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