Senior Water Quality Engineer

Landau Associates is recognized for excellence in the environmental consulting industry. With nine offices in the Pacific Northwest and Gulf Coast, we have demonstrated that our focus on collaboration, responsiveness, and quality results in client satisfaction and long-term relationships. As employees, we own the Company, and our ownership culture promotes individual accountability to our clients, each other, and our community. We are seeking a senior-level Environmental, Civil, or Chemical Engineer to support our existing industrial stormwater and wastewater practice, including permit compliance support and treatment design. This role offers a flexible hybrid work schedule in any one of five office locations (Seattle, Tacoma, Kingston, or Olympia, Washington or Portland, Oregon). Key Responsibilities Include: Task and project management in support of projects involving: Compliance with the Washington ISGP and Oregon 1200-Z industrial stormwater general permits including SWPPP preparation, stormwater monitoring, and BMP selection Leading technical evaluation of data and developing recommendations for permit compliance Assessing treatment alternatives for pollutants (e.g. metals, suspended solids, organics, nutrients, emerging contaminants) to meet stormwater permit benchmarks and wastewater pretreatment limits Design and implementation of stormwater treatment systems and/or industrial wastewater pretreatment systems, with a demonstrated understanding of the characteristics of pollutant parameters and aquatic chemistry Industrial wastewater discharge permitting and compliance, including State Waste Discharge Permits and Water Pollution Control Facility permits Developing and certifying engineering plans and specifications Developing sampling and analysis plans for facility stormwater characterization Pollutant source identification and source control Developing connections with current and potential future clients, identifying and pursuing work opportunities Managing projects, including developing proposals, managing contracts, tracking budgets, invoicing, managing change, communicating with project team, regulators, and clients, and providing other administrative support as required Supervising and training junior and mid-level staff This position is available for the candidate who has: Bachelor's or Master's degree in environmental, civil, or chemical engineering with related coursework in hydraulics and hydrology, environmental chemistry, and/or wastewater treatment 10+ years of direct experience in major job duties listed above Demonstrated success with client engagement and business development A proven track record of managing projects, establishing and being accountable for project deadlines, profitability, and budget Registration as a PE in WA and/or OR The ideal candidate will be comfortable working in a collaborative project-team environment, interchangeably supporting co-workers and engaging co-workers' support to meet the specific needs of a wide range of projects. Landau Associates is committed to quality, collaboration, and responsiveness, and seeks candidates who share the same values. Landau Associates offers an excellent compensation and benefits package in an environment that promotes personal growth and professional advancement. The salary range for this position is $150,000 - $205,000. Compensation is based on a variety of factors, including education, experience, performance, location, and internal equity. As part of our compensation program, we review and update our salary ranges at least annually. We provide a wide variety of benefits to support our employees and their families. Details can be found on the Careers page of our website. Qualified applicants please visit our Careers page at to apply online. We are an equal opportunity employer.

Created: 2026-03-04