Water Quality Modeling Jobs (NOW HIRING)

McMillen, Inc. (McMillen) is an engineering, environmental, and construction firm providing scalable, multi-disciplinary capabilities. We are a design and build firm providing clients with balanced perspective and realistic solutions. With experts in the United States, Canada, Australia, and France, our staff bring best practices from the water resources, energy, dams, infrastructure, fisheries, aquaculture, and restricted access markets.

Water Quality Lead

McMillen, Inc. is seeking a highly motivated and self-directed Water Quality Lead to provide technical and leadership support for complex water quality projects across the Northwest. The ideal candidate will be a licensed Professional Engineer (PE) with expertise in water quality modeling, technical documentation management, and regulatory compliance.

• Lead and supervise teams conducting water quality investigations, laboratory research, and regulatory impact analyses.
• Oversee the preparation and review of technical documentation, study plans, and water quality reports.
• Review and interpret analytical results from bacteriological and chemical analyses to ensure regulatory compliance.
• Manage the response to water quality issues, including incident investigations and corrective action implementation.
• Support water quality modeling, data management, and interpretation to guide project decisions.
• Contribute to relicensing documentation, environmental reports, and compliance deliverables.
• Ensure adherence to all applicable federal and state environmental regulations.
• Implement and maintain management policies, quality assurance protocols, and operating practices.
• Collaborate with multidisciplinary teams, regulatory agencies, and stakeholders to advance project objectives.
• Provide mentorship and guidance to junior staff and technical specialists.

• Professional Engineer (PE) license required; Ph.D. in Environmental Science, Water Resources, or related field preferred.
• Bachelor’s or Master’s degree in Natural Resource Management, Environmental Science, Ecology, Biology, or related technical discipline.
• 8+ years of relevant professional experience, including supervisory or project management roles.
• Demonstrated expertise in water quality modeling and regulatory documentation management.
• Excellent written and verbal communication skills, with strong technical and analytical abilities.
• Proven ability to manage multiple projects and collaborate with diverse stakeholders.
• Willingness to travel to project sites as needed and perform occasional fieldwork in varying weather conditions.
• Flexible work schedule with both office and remote work options.

• Pay Range: $143,846 - $209,199
• Benefits: McMillen provides a full Benefits Program consisting of Medical, Dental, Vision, Life, Disability, FSA, EAP, 401(k) and match, 9 Paid Holidays, generous PTO, opportunity for Stock Ownership and Wellness Reimbursement.

We balance technical precision with collaborative delivery throughout all project phases. We have the resources and expertise to contribute to a project at the feasibility and planning stage, navigate the regulatory and permitting requirements, develop detailed designs, self-perform construction, and participate in startup, testing, and commissioning. We offer strategic planning, technical expertise, comprehensive project management, and integration of multi-disciplinary studies for traditional and alternative project delivery methods.

We want our employees to make a career doing what they love to do. We aren’t looking for the complacent or the comfortable. We are looking for the highly technical, the creators, the mania obsessives, the outliers who know being the best is a journey, not a finish line. We support our employees’ efforts to stay on the cutting edge of technology while fostering a great work-life balance.

McMillen, Inc. is an EEO/Affirmative Action Employer and will make all employment related decisions without race, color, religion, sex, national origin, disability or protected veteran status.

Equal Opportunity Employer, including disabled and veterans.

Visa sponsorship, including renewal during employment, will not be provided for this position.