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Tetra Tech

Senior Contaminated Sites Specialist

Calgary, AB, Canada

$140,000 to $170,000 CAD / year · Full-time

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Job details

Pay: $140,000 to $170,000 CAD / year
Job type: Full-time
Apply by: Dec 4, 2026
Experience: A minimum of 15 years of relevant, hands-on experience, preferably in an environmental consulting environment.
Posting language: English
Posted: Nov 4, 2026

Original job description

The Opportunity:

Tetra Tech is adding a Senior Contaminated Sites Specialist to our Environment and Water Practice team based in Edmonton, Calgary, or Lethbridge, AB.

This role combines technical leadership, project delivery, and mentoring of multidisciplinary teams across Alberta and Northern Canada.

Why Tetra Tech:

At Tetra Tech, we are Leading with Science™ to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 500 million lives around the world.

Your Impact:

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Your Role:

Technical Leadership

Lead and provide professional oversight for Environmental Site Assessments (ESAs) and remedial investigations in accordance with CSA Z768/Z769, provincial regulations, and CCME guidelines.
Plan and oversee environmental field programs, including borehole drilling, monitoring-well installation, soil and groundwater sampling, and laboratory analysis.
Develop and implement practical remediation and risk-management strategies for contaminated sites across Alberta and Northern Canada.
Stay current with industry trends, emerging technologies, regulatory developments, and market conditions.
Review and prepare clear, concise, and technically accurate reports, remedial action plans, and regulatory submissions.

Client Management

Build and maintain effective relationships with clients, regulators, contractors, and project stakeholders.

Team Development

Provide technical leadership, coaching, and mentorship to junior and intermediate staff.
Support the preparation of high-quality, competitive proposals for environmental engineering projects.

Qualifications:

Bachelor’s or master’s degree in Environmental Science, Environmental Engineering, or a related discipline.
Professional registration as a P.Eng., P.Geo., P.Ag., or equivalent in Alberta, with eligibility for registration in other Canadian provinces and territories.
A minimum of 15 years of relevant, hands-on experience, preferably in an environmental consulting environment.
Experience conducting contaminated-sites assessments and remediation projects in Alberta and Northern Canada.
Experience developing conceptual site models, remedial-options analyses, remedial-action plans, and risk-management plans.
Strong knowledge of Alberta and federal environmental regulations, guidelines, and industry standards.
Experience working with a variety of sites and clients, including municipalities, government agencies, industry, and upstream and downstream oil and gas companies.
Demonstrated experience mentoring, supervising, and directing staff to deliver high-quality technical work.
Strong leadership skills and a demonstrated interest in training, mentoring, and developing junior and intermediate staff.
Exceptional interpersonal skills, with the ability to build and maintain long-term relationships with colleagues, clients, regulators, and stakeholders.
Excellent written and verbal communication, teamwork, problem-solving, leadership, and mentorship skills.
Several years of experience developing and maintaining client relationships.
Experience identifying and pursuing business-development opportunities and contributing to marketing initiatives.
Willingness to travel, including to remote and Northern locations.
Professional registration in other Canadian provinces and territories, including Yukon, the Northwest Territories, and Nunavut, is an asset.
Knowledge of or experience with the Alberta Subsoil Salinity Tool Version 3.0 is an asset.
Experience working at Northern, remote, or fly-in/fly-out sites is an asset.

Life at Tetra Tech:

The perks of working at Tetra Tech include (if applicable):

Comprehensive and market-competitive benefits, available on day one of employment.
We have embraced a hybrid culture. We will provide you the tools to work almost anywhere.
Flexibility and company-wide commitment to work/life balance.
Collaborative team atmosphere that values the contributions of all employees.
Learning and development opportunities for ongoing professional growth.
Mentorship with world leading experts in your field.

Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

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More about this job

Responsibilities

Lead and oversee environmental site assessments, remedial investigations, field programs, and remediation and risk-management planning for contaminated sites in Alberta and Northern Canada. Manage client and stakeholder relationships, review technical reports and regulatory submissions, mentor staff, and contribute to proposals and business development.

Requirements

Requires a bachelor’s or master’s degree in environmental science, environmental engineering, or a related discipline; professional registration in Alberta; and at least 15 years of relevant hands-on experience. Candidates should have contaminated-sites assessment and remediation experience, strong regulatory and technical expertise, leadership and mentoring abilities, client-development experience, and willingness to travel to remote and Northern locations.

Skills

Contaminated-Sites Assessment
Environmental Site Assessments
Remedial Investigations
Risk Management
Regulatory Compliance
Technical Report Writing
Team Leadership
Staff Mentoring
Proposal Development
Business Development
Conceptual Site Modeling
Remedial-Options Analysis
Stakeholder Engagement

Benefits

Comprehensive And Market-Competitive Benefits
Work-Life Balance
Learning And Development Opportunities
Mentorship

Visa sponsorship

Not detected in the job text

Keywords

Environmental Site Assessments
Contaminated Sites
Remedial Investigations
CSA Z768
CSA Z769
CCME Guidelines
Federal Environmental Regulations
Borehole Drilling
Monitoring-Well Installation
Soil Sampling
Groundwater Sampling
Laboratory Analysis
Conceptual Site Models
Remedial-Options Analysis
Remedial-Action Plans
Risk-Management Plans
Environmental Engineering
Environmental Science
Professional Engineer (P.Eng.)
Professional Geoscientist (P.Geo.)
Professional Agrologist (P.Ag.)
Alberta Subsoil Salinity Tool Version 3.0
Northern And Remote Sites
Oil And Gas
Regulatory Submissions
Environmental Consulting
Business Development

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