City of Seattle

Sr. Water Quality Engineer

City of Seattle

Seattle, WAClassified Civil Service, Regular, Full-TimePosted Jul 21, 2026

Job description

Seattle Public Utilities (SPU) is seeking a Senior Water Quality Engineer to help protect and enhance one of the region’s most essential resources: clean, reliable drinking water for more than a million people. In this role, you’ll be SPU’s technical leader on its most complex and high-impact water quality and treatment challenges—work that directly safeguards public health and strengthens trust in Seattle’s drinking water.

You’ll drive treatment strategy, system performance improvements, and data-informed decision-making across the entire drinking water system. Working closely with operators, engineers, planners, and project teams, you’ll bring expert insight to daily operations, major...