Senior Wastewater Process Design 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 Wastewater Process Design Manager to join our Water Team. This position joins our established water team in Washington and Oregon. Our preference is for this position to be based out of Western Washington/Oregon. However, we are open to considering exceptional candidates outside of the area who are committed to travel for client connection, mentorship, team integration, and supporting key initiatives. 

You are an experienced process design manager who can provide:

Project Delivery Oversight: Lead the design and development of water and wastewater treatment processes, including biological and advanced treatment technologies. This role includes serving as engineer of record for preliminary engineering studies and planning documents, the development of plans, drawings, and specifications with a primary emphasis on wastewater treatment facilities. You have experience with process modeling in BioWIN or similar systems, hydraulic modeling and cost estimating. Additional experience with mechanical process piping design and construction support services would be desirable but is not required.  

Project Management: Coordinate and manage the design phase of wastewater and water projects, verifying they meet technical specifications, regulatory requirements, quality assurance and client expectations. This task includes developing project scopes and budgets, project scheduling, defining and assigning tasks, providing guidance, and ensuring project deadlines and budgets are met.

Team Leadership and Collaboration: Lead a multidisciplinary team of engineers and designers executing water and wastewater related projects, including coordination with civil, mechanical, electrical and structural teams. This may include coordination with other teaming partners for successful project delivery. Provide technical mentorship to project engineers at various career stages.

Client Interaction: Collaborate with clients to understand their needs, provide updates on project progress, and address any challenges that may arise during work. Provide the experience to lead and participate in client workshops.

You Have:

• Bachelor's degree in civil or environmental engineering or a related field. 
• Professional Engineering License.
• 10+ years of progressive municipal water/wastewater treatment planning, design, and construction support experience.
• Understanding of design software tools for the water industry, including BioWIN, Revit and Civil 3D.

Compensation Information: Base salary for this position is in the range of $130,000-$200,000 DOQ.

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 or belief, creed, national, social or ethnic origin, political viewpoint, sex (including pregnancy), age, physical, mental or sensory disability, sexual orientation, gender identity and/or expression, marital, civil union or domestic partnership status, past or present military service, family medical history or genetic information, family or parental status, protected veteran status, citizenship status when otherwise legally able to work, or any other status or characteristic protected by the laws or regulations in the locations where we operate.

Parametrix does not tolerate discrimination or harassment based on any protected characteristics. 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.