Senior Environmental Due Diligence Manager

Senior Environmental Due Diligence Manager

About Parametrix

Parametrix is a 100% employee-owned consulting firm helping clients deliver resilient infrastructure, vibrant and livable communities, and environmentally sustainable solutions.

We are a team of professional construction managers, engineers, management consultants, planners, scientists, and surveyors dedicated to delivering outstanding client service. We build lasting partnerships and collaborate with our clients to envision possibilities and create tomorrow, together.

We are committed to being a Best Place to Work, offering hybrid work environments that promote meaningful connections, support work-life balance, and encourage career development. With excellent benefits, employee ownership, and a collaborative culture, Parametrix creates a supportive and enriching workplace.

About the Role

We are looking for a Senior Environmental Professional to join our Environmental team leading and managing a portfolio of due diligence projects. This position will be based in Oregon with options to be located in Portland, Bend, Eugene or Ashland. This role will oversee due diligence assessments for complex transportation projects, municipalities, and industrial clients.

You Will:

• Serve as technical lead for due diligence projects, overseeing scope development, risk prioritization, and alignment with client goals and timelines.
• Serve as the Environmental Professional of record for Phase I ESAs for projects ranging from a single property to over 100 properties along a project corridor. Author or review and sign Phase I ESA reports in compliance with ASTM E1527-21. Ensure technical accuracy, defensibility, and consistency with firm standards.
• Serve as technical lead for hazardous materials corridor studies for road, bridge, public transit, and municipal projects.
• Prepare and oversee hazardous materials technical reports for NEPA EAs, EISs and similar documents.
• Provide senior-level quality control review of deliverables, with a focus on regulatory compliance, data interpretation, and clear risk communication.
• Coordinate with site investigation team to perform Phase II ESAs or similar sampling programs.

You Have:

• Bachelor's degree in Environmental Science, Geology, Hydrogeology, Environmental Engineering, or related technical discipline.
• Meet Environmental Professional qualification under 40 CFR Part 312.
• 8+ years of experience conducting and leading environmental due diligence and hazardous materials assessments.
• Strong technical writing skills with a track record of authoring and finalizing defensible, client-facing reports.

Compensation Information: Base salary for this position is in the range of $110,000-$140,000.

Compensation is determined by factors such as education, experience, location, and role. As employee-owners, we are eligible for performance-based bonuses and our salaries are reviewed annually. Our compensation structure prioritizes transparency and internal pay equity.

Why Join Parametrix?

Employee Ownership & Great Benefits: As a 100% employee-owned company, you will share in and contribute to Parametrix's success. You will earn stock in your Employee Stock Ownership Plan (ESOP) account and be an important contributor to our collective achievements.

Our Benefits include:

• Comprehensive Healthcare (medical, dental, vision, short- & long-term disability insurance)
• Employee Stock Ownership Plan (financial profit sharing)
• Performance-based bonuses
• 401(k) Plan
• Paid Time Off (both vacation & sick/wellness time accruals)
• Paid Holidays
• Parental Bonding Leave

Exciting, Award-Winning Project Work: Our work earns recognition for its innovation and positive impact on communities, giving you the opportunity to contribute to projects that make a difference. Learn more at

Flexible Work Arrangements: We understand the importance of work-life balance and offer flexible work arrangements to support our employee-owners' diverse needs. Whether it is hybrid, remote, or in-office, we provide options that allow you to work in a way that best suits your lifestyle while staying connected and engaged with your team.

Our Commitment to You

Parametrix is committed to being an inclusive workplace, where team members of all backgrounds and experiences are welcome. As an equal opportunity employer, it is our policy and culture to provide opportunities to all persons based on merit and fitness to perform job duties. Employment decisions are based solely on business needs, job requirements, and individual qualifications, without regard to race, color, religion, creed, national or ethnic origin, sex (including pregnancy), sexual orientation, gender identity or expression, marital status, religion, age (40 or older, as protected under the ADEA), disability (including physical, mental, or sensory), genetic information (including testing and characteristics), protected veteran status, or any other status or characteristic protected by applicable federal, state, or local laws or regulations.

At Parametrix, we are dedicated to encouraging an inclusive and accessible workplace. If you need any accommodations during the application or interview process, please let us know, and we will work with you to ensure your needs are met. We welcome and encourage candidates from all backgrounds to apply.

Ready to join us?

Visit our careers site at to apply and view all available opportunities at Parametrix.