Principal Scientist Facility Assessment and Indoor Environments

Principal Scientist Opportunity

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.

Principal Scientist Role

Stantec is seeking a Principal Scientist to join our collaborative team of Environmental Scientists, Geologists, and Engineers across the US West. This is a high-impact, client-facing role supporting a dynamic and growing Environmental Services team. As a Principal Scientist, you will lead complex site characterization and exposure assessment projects with federal and state oversight, focusing on environmental facility assessments and indoor air quality, including vapor intrusion and inhalation risk. You'll also provide technical leadership within Stantec's National Risk Assessment and Toxicology Practice, serving as a subject matter expert and trusted advisor to clients and project teams.

Key Responsibilities

• Support multi-disciplinary environmental projects with a focus on vapor intrusion, exposure assessment, and inhalation risk.
• Serve as a senior technical advisor, providing strategic guidance on regulatory compliance and risk mitigation.
• Design site assessments to determine the potential for air/vapor intrusion and interpret data in the context of applicable federal, state or local air quality and health risk standards.
• Design vapor intrusion mitigation systems such as sub-slab depressurization or venting systems and provide technical specifications for construction retrofitting of mitigation systems.
• Using sub-slab and ambient air data, use relevant models to evaluate excess cancer risk, hazard index and cumulative risk to potential receptors in accordance with state and federal guidelines.
• Prepare technical reports and regulatory submittals for environmental agencies and ensure projects comply with air quality regulations.
• Lead and/or participate in regulatory meetings to defend sub-slab and ambient air analytical data, risk modeling results and technical reports as necessary.
• Stay current on emerging vapor intrusion science, tools and remediation technologies, state and federal regulatory guidelines, and contribute to developing best practices or standard operating procedures for Stantec.
• Support business development by building client relationships and identifying new project opportunities.
• Ensure projects are delivered on time within scope and budget and the high technical quality.
• Mentor junior staff and contribute to thought leadership within Stantec.

Qualifications

• 15+ years of environmental consulting experience, including extensive work on complex site investigations and regulatory compliance.
• Proven experience managing projects under federal and state regulatory frameworks, particularly in California, Texas, Washington, Michigan and Oregon.
• Strong technical writing skills, with demonstrated experience preparing and reviewing high-quality reports that interpret field data and analytical results.
• Exceptional client communication and relationship-building skills.
• Prior experience supporting or leading technical teams in vapor intrusion, air quality, or toxicology.
• Must have a valid driver's license (with REAL ID) and good driving record.
• A medical physical and/or drug and alcohol screening may be required for some project assignments.
• Bachelor's degree (preferred Master's) in Environmental Science, Engineering, Geology or Hydrogeology, or related field in Physical or Earth Sciences. 15+ years related experience.

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.

Pay Range

Locations in MN, VT, & Various CA, NY Areas - Min Salary $ 99,000.00 - Max Salary $ 148,500.00 Locations in CO, HI, IL, MD & Various CA, NJ Areas - Min Salary $ 108,900.00 - Max Salary $ 163,400.00 Locations in WA, DC & Various CA areas - Min Salary $ 116,800.00 - Max Salary $ 175,200.00

Benefits Summary

Regular full-time and part-time employees (working at least 20 hours per week) have access to medical, dental, and vision plans, a wellness program, health saving accounts, flexible spending accounts, 401(k) plan, employee stock purchase program, 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 family leave. Regular full-time and part-time employees will receive ten paid holidays in each calendar year. In addition, employees will be eligible to accrue vacation between 10 and 20 days per year and eligible for paid sick leave. Temporary/casual employees have access to 401(k) plans, employee stock purchase program, and paid leave, in accordance with state and local law.

Primary Location

United States | WA | Bellevue

Organization

2037 EnvSvcs-US Mountain-Bellevue WA

Employee Status

Regular

Travel

Yes

Schedule

Full time

Stantec Commitment

Stantec provides equal employment opportunities to all qualified employees and applicants for future and current employment and prohibit discrimination on the grounds of race, colour, religion, sex, national origin, age, marital status, genetic information, disability, sexual orientation, gender identity or gender expression. We prohibit discrimination in decisions concerning recruitment, hiring, referral, promotion, compensation, fringe benefits, job training, terminations or any other condition of employment. Stantec is in compliance with laws and regulations and ensures equitable opportunities in all aspects of employment. At Stantec we are committed to ensuring our recruitment process is accessible to all. If you require reasonable adjustments to be made during the recruitment process then please inform a member of our Talent Acquisition team.