Custodian - Brightwater

Summary

This position is open to all qualified candidates

The Wastewater Treatment Division transforms wastewater to become a valuable resource for all King County communities. For those who live, work, and play in King County to have a healthy and sustainable future, the work the Wastewater Treatment Division accomplishes is valuable and important. The impact the Wastewater Treatment Division has on King County shows how great it is to work for WTD.

About the Role

The primary function of the Custodian is to maintain the cleanliness of interiors and exteriors of various office and industrial facilities at the Brightwater Treatment Plant as well as backfill for the custodian at the Environmental Education Center. This is a great opportunity for an individual who likes a variety of work, working with a diverse team that supports the Operations and Maintenance of Brightwater Treatment Plant and its conveyance systems. The successful applicant will work to help the Wastewater Treatment Division maintain a healthy environment for wastewater treatment personnel of King County.

About the Team

Brightwater is part of King County’s regional wastewater system and serves parts of north King County and south Snohomish County. The plant is located just north of Woodinville and is King County’s newest regional wastewater treatment facility. It features an educational and event center, natural areas and hiking trails, and public art. The facility is nationally recognized for its award-winning design and its consistent compliance with state and federal discharge limits.

The Brightwater Plant has approximately 70 employees who operate and maintain the plant. The plant also serves as a worksite for contraction management personnel and administrative staff. It has a diverse workforce dedicated to supporting the mission of the Wastewater Treatment Division by safely operating and maintaining the facility to comply with environmental regulations.

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 Custodian you will actively apply these principles in all aspects of your work. Learn more about our commitment at http://www.kingcounty.gov/equity
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.

Job Duties

What you will be doing:

• Strip, wax and scrub various types of floors; vacuum and extract dirt from carpets and machine-buff floors.
  
• Clean, stock and sanitize restrooms, kitchens, and public spaces including tables, chairs, toilets, showers, sinks and walls.
  
• As directed, mix and use cleaning solutions and chemicals.
  
• Dust, wash and vacuum surfaces.
  
• Request and stock various types of supplies.
  
• Empty trash.
  
• Monitor and report any building, equipment, or safety issues to staff.
  
• Support grounds maintenance including litter pickup and occasional outdoor tasks.
  
• Follow established safety protocols and contribute to a culture of health and safety.
  
• Clean glass windows and surfaces
  
• May research and prepare bid specifications for cleaning equipment and supplies.
  
• Perform other duties as assigned.
  

Experience, Qualifications, Knowledge, Skills

Qualifications You Bring:

• Knowledge of basic janitorial cleaning techniques.
  
• Knowledge in the use and care of cleaning equipment.
  
• Knowledge of basic safety rules and procedures to ensure the safety of yourself and co-workers.
  
• Knowledge of basic cleaning chemicals.
  
• Effective communication skills and the ability to follow written and verbal instructions.
  
• Ability to demonstrate behaviors that include fairness, respect, and inclusiveness.
  
• Ability to work effectively with others in a work environment that embraces and encourages diversity in its workforce and where differences are valued.
  

Action Oriented: Taking on new opportunities and tough challenges with a sense of urgency, high energy, and enthusiasm.
Instills Trust: Gaining the confidence and trust of others through honesty, integrity, and authenticity.
Communicates Effectively: Developing and delivering multi-mode communications that convey a clear understanding of the unique needs of different audiences.
Interpersonal Savvy: Relating openly and comfortably with diverse groups of people.
Collaborates: Building partnerships and working collaboratively with others to meet shared objectives.

Required Licenses:

• Washington State Driver’s License.

It Would Be Great if You Also Bring:

• One (1) or more years of recent professional industrial cleaning/janitorial work experience
  

Physical Requirements:

• Lifting up to 50 pounds, twisting, climbing, and bending on a daily basis.

Workplace Exposure:

• Working in a wastewater treatment environment with exposure to some wastewater pathogens, and contaminates.

Supplemental Information

Working Conditions:

• Work Location: Onsite at Brightwater Treatment Plant 22505 WA-9, Woodinville, WA 98072
• Work Schedule: This position is covered under the provisions of the Fair Labor Standards Act (FLSA) and is overtime eligible.
• Union Representation: This position is represented by SEIU Local 925 - Wastewater Treatment Division
• Physical Requirement: Incumbents performing field work must be able to lift 50 lbs.
• Workplace Exposures: Working in a wastewater treatment environment with exposure to some wastewater pathogens, and contaminates.

Application and Selection Process:

We welcome applications from all qualified applicants. We value diversity, diverse perspectives and life experience and encourage people of all backgrounds to apply. Application materials will be screened for clarity, completeness and alignment with the experience, qualifications, knowledge, and skills essential for this role to determine which candidates may be invited to participate in one or more panel interviews.

Anticipated Timeline for this recruitment: (subject to change)

• Panel interview: Virtual interviews will be held the held in Late July 2026

To apply, submit a:

• Complete Application
• Resume (Required)
• Responses to the supplemental questions

Note: Additional documents won't be considered during minimum qualification screening.

Who to Contact: For more information regarding this recruitment, please contact Dan Sherman at dasherman @kingcounty.gov

Discover More About the Wastewater Treatment Division: Visit our website and check us out at Facebook , X (formerly Twitter) , Instagram , YouTube , and the WTD Blog .

Discover More About DNRP: Visit our DNRP website , explore an interactive map of our recent accomplishments and check us out at Facebook , X (formerly Twitter) , LinkedIn , TikTok , Instagram , YouTube and Keeping King County Green News .

Sign up for Job Alerts to be notified of additional career opportunities with King County. Select the Natural Resources category for DNRP opportunities and explore other categories of interest.

Forbes named King County as one of Washington State's best employers.
Together, with leadership and our employees, we're changing the way government delivers service and winning national recognition as a model of excellence. Are you ready to make a difference? Come join the team dedicated to serving one of the nation's best places to live, work and play.

Guided by our "True North" , we are making King County a welcoming community where every person can thrive. We value diversity, inclusion and belonging in our workplace and workforce. To reach this goal we are committed to workforce equity. Equitable recruiting, support, and retention is how we will obtain the highest quality workforce in our region; a workforce that shares and will help advance our guiding principles - we are one team; we solve problems; we focus on the customer; we drive for results; we are racially just; we respect all people; we lead the way; and we are responsible stewards. We encourage people of all backgrounds and identities to apply, including Native American and people of color, immigrants, refugees, women, LGBTQ+, people living with disabilities, and veterans.

King County is an Equal Employment Opportunity (EEO) Employer
No person is unlawfully excluded from employment opportunities based on race, color, religion, national origin, sex (including gender identity, sexual orientation and pregnancy), age, genetic information, disability, veteran status, or other protected class. Our EEO policy applies to all employment actions, including but not limited to recruitment, hiring, selection for training, promotion, transfer, demotion, layoff, termination, rates of pay or other forms of compensation.

To Apply
If you are interested in pursuing this position, please follow the application instructions carefully. If you need this announcement in an alternate language or format, would like to request accommodation or assistance in the application or assessment process or if you have questions, please contact the recruiter listed on this job announcement.

King County offers a highly-competitive compensation and benefits package designed to meet the diverse needs of our employees and support our employees' health and well-being. Eligible positions receive the following benefits and have access to the following programs:

• Excellent medical, dental, and vision coverage options: King County provides eligible employees with options, so they can decide what’s best for themselves and their eligible dependents
• Life and disability insurance: employees are provided basic coverage and given the opportunity to purchase additional insurance for both the employee and eligible dependents
• Retirement: eligible King County employees may participate in a pension plan through the Washington State Department of Retirement Systems and a 457(b) deferred-compensation plan
• Transportation program and ORCA transit pass
• 12paid holidays each year plus twopersonal holidays
• Generous vacation and paid sick leave
• Paid parental,family and medical, and volunteer leaves
• Flexible Spending Account
• Wellness programs
• Onsite activity centers
• Employee Giving Program
• Employee assistance programs
• Flexible schedules and telecommuting options, depending on position
• Training and career development programs

For additional information about employee benefits, visit our Benefits, Payroll, and Retirement Page .

This is a general description of the benefits offered to eligible King County employees, and every effort has been made to ensure its accuracy. If any information on this document conflicts with the provisions of a collective bargaining agreement (CBA), the CBA prevails.

NOTE: Benefits for Term Limited Temporary (TLT) or Short Term Temporary (STT) positions, including leave eligibility and/or participation in the pension plan through the Washington State Department of Retirement Systems, will vary based upon the terms and details of the position.Short Term Temporary positions are not eligible for an ORCA transit pass.

For inquiries about the specifics of this position, please contact the recruiter identified on this job posting.

Closing Date/Time: 7/9/2026 11:59 PM Pacific

King County Water and Land Resources Division

206-477-4800 Show more