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Wastewater Maintenance Supervisor, Mechanical - SP

Job in Renton, King County, Washington, 98056, USA
Listing for: King County
Full Time position
Listed on 2026-03-10
Job specializations:
  • Management
    Water Management
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

This position is open to all qualified candidates.

This recruitment aims to fill three Wastewater Maintenance Supervisor positions.

About the Role:

Are you looking for an opportunity to lead a highly diverse team of Maintenance professionals and be a part of creating the strategic direction for a complex wastewater system? The Wastewater Treatment Division (WTD) in King County (KC) is hiring a leader for the South Plant mechanical team. This position will lead a team of treatment plant and offsite mechanical staff, oversee the preventative and corrective maintenance of the East Section facilities, and be an active member of the O&M Leadership team.

The responsibilities of this classification include supervising and directing the overall mechanical maintenance teams and program(s) for the South Plant and Brightwater wastewater treatment plant and East Section Offsite facilities. Maintenance programs include but are not limited to the repair, replacement, and preventative maintenance of industrial instrumentation equipment, electrical and instrumentation control systems. Incumbents supervise and direct the work of lead, skilled trades, semi-skilled trades, engineering, and technical support positions.

Incumbents also assist the treatment plant manager in the development, implementation, and revision of short- and long-term goals and objectives for the plant’s operation and maintenance.

The primary function of this role is to lead, direct, and supervise the team members (maintenance mechanics, engine mechanics, offsite maintenance mechanics) assigned to the Mechanical Maintenance team for East Operations and Maintenance units.

As a Wastewater Maintenance Supervisor, Mechanical within the Operations and Maintenance team you are expected to be a “People Leader” to lead and develop your team to align with the County and WTD leaderships goals, expectations, standards, and initiatives. You will be a mentor and guide to those working within your team and those that work with your team.

About the Team:

Working for KC WTD, provides you a work-life balance and benefits to support you and your family. You will also gain opportunities for growth through trainings, conferences hosted by leaders in the industry, and working across functional groups within the Division. Join our team dedicated to ensuring clean water for generations to come! With about 1000 employees engaged in planning, designing, building, and operating treatment facilities, our agency is at the forefront of environmental stewardship.

Success for us means upholding our legacy while promising future generations a pristine environment.

We partner with regulatory agencies to reduce harmful waste discharge and actively educate the public and businesses on water quality protection. We prioritize accountability to our ratepayers and operate a well-managed agency that services over 2.3 million King County residents. Our regional wastewater treatment system not only sustains a healthy environment but also fuels economic development, fostering prosperity in our region.

If you're passionate about making a difference and thrive in a collaborative environment, join us in our mission to safeguard our precious water resources.

Commitment to Equity, Racial and Social Justice:

King County, named after Dr. Martin Luther King, Jr., is a diverse and vibrant community that represents cultures from around the world. Our True North is to create a welcoming community where everyone can thrive. We prioritize equity, racial and social justice, making it a foundational and daily expectation for all employees. As a Wastewater Maintenance Supervisor, Mechanical you will actively apply these principles in all aspects of your work.

Learn more about our commitment at http://(Use the "Apply for this Job" box below)..

Apply now for a rewarding career at the Wastewater Treatment Division of King County Department of Natural Resources & Parks (DNRP). Join our talented workforce in protecting and restoring the natural environment and promoting more resilient, sustainable, and equitable communities. Enjoy training, comprehensive benefits, and growth opportunities.

What You Will Be Doing:
  • Supervise and…
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