Job Description

Posting number: 2026-27747

Department: DNRP-Natural Resources & Parks

Division: Wastewater Treatment

Job classification: Industrial Maintenance Mechanic (A2 : SEIU L925-Wastewater)

Posting type: Open

Categories: Natural Resources, Wastewater

This is an exciting opportunity to join a team of journey-level mechanics at the West Point Treatment Plant, performing both planned and unscheduled maintenance while honing your mechanical skills in an industrial setting. You’ll play a critical role in keeping essential systems running smoothly, contributing directly to the health and sustainability of the Puget Sound region.

This position offers excellent benefits and job security in a unionized setting. Employees who are actively engaged in their professional growth have opportunities for advancement to Industrial Mechanic-Master, as well as potential leadership roles as they become available.

About the Role:

This position performs a variety of highly skilled journey-level work by troubleshooting, maintaining and repairing a wide range of rotating mechanical equipment, including biosolids decanting blowers, influent and effluent pumps, biogas scrubbing compressors, gearboxes, conveyance systems, and multiple piping systems. You’ll use your maintenance experience to troubleshoot and repair high-level equipment issues, ensuring reliable operations across the West Point treatment plant. We’re looking for a goal-oriented, self-motivated individual who helps foster a safe, supportive, and collaborative team culture.

This role will work both independently and in collaboration with other skilled trade and plant operations staff. To ensure a safe work environment, this role will use appropriate PPE and proper Lock-Out Tag Out procedures around all electrical, mechanical, and environmental hazards as well as using safe work procedures that include working in Permit-Required Confined Spaces. The candidate will perform both preventive maintenance as well as unscheduled work on all related equipment and provide stand-by coverage on a rotating basis for emergent needs after a probationary period. Team members also participate in Capital Improvement Projects, as assigned, by providing input to project management to support equipment upgrades and replacements. This position offers excellent benefits, unionized job security, and opportunities for ongoing learning and professional growth.

About the Team:

Employees at West Point play a key role in the environmental stewardship of the Puget Sound region while maintaining a healthy work-life balance. Our maintenance team works collaboratively on major projects and repairs, including pumps, piping, gearboxes, and other critical plant equipment. We value teamwork, communication, and a supportive culture that encourages learning, equity, and a shared commitment to keeping the plant running safely and efficiently.

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

Examples of duties

What You Will Be Doing:

• Perform maintenance, repair, and overhaul of a wide variety of complex mechanical machinery, including pumps, motors, grinders, blowers and compressors, centrifuges, gearboxes, hydraulic systems, and gravity belt thickeners, independently or with minimal guidance.

• Install, maintain, and repair large plumbing and piping systems used in a wastewater treatment facility, ensuring compliance with safety and operational standards.

• Fabricate, modify, and repair plant piping and other heavy equipment using welding equipment, cutting torches, and plasma cutters; contribute to design improvements when appropriate.

• Safely operate a variety of hand, power, and pneumatic tools, including grinders, drill motors, drill presses, band saws, ironworkers, table saws, and hydraulic presses, applying expert knowledge of proper techniques and shop practices.

• Lead or mentor less experienced mechanics or helpers, providing guidance and support on complex tasks and troubleshooting.

• Perform other duties as assigned, supporting the overall reliability and safety of plant operations.

Qualifications

Qualifications You Bring

• Extensive knowledge of the safe use, care, and operation of hand, power, and pneumatic tools, as well as specialized shop equipment, for mechanical maintenance and repair.
• Strong knowledge of plumbing techniques and principles, including installation, maintenance, and repair of large-scale wastewater facility piping systems.
• Proficient knowledge of welding techniques, including MIG, TIG, and stick welding, as well as cutting and fabrication for heavy equipment and plant piping. Comprehensive understanding of pumps and pumping systems, including motor components, controls, troubleshooting, and routine maintenance for multiple pump types.
• Skill in reading and interpreting mechanical drawings, schematics, manuals, and technical instructions; ability to prepare clear written and oral documentation of work performed.
• Knowledge and practical experience with rigging, hoisting, and safe operation of overhead cranes and lifting devices for moving heavy equipment.
• Ability to lead or mentor less-experienced mechanics or helpers, providing guidance on complex mechanical tasks and troubleshooting techniques.

Competencies You Bring:

• Decision Quality: Making good and timely decisions that keep the organization moving forward.
• Optimizes Work Processes Knowing the most effective and efficient processes to get things done, with a focus on continuous improvement.
• Manages Conflict Handling conflict situations effectively, with a minimum of noise.
• Drives Engagement Creating a climate where people are motivated to do their best to help the organization achieve its objectives.
• Demonstrates Self-Awareness Using a combination of feedback and reflection to gain productive insight into personal strengths and weaknesses.
• Self-Development Actively seeking new ways to grow and be challenged using both formal and informal development channels.

Required Licenses/Certifications:

• Valid Washington State Driver's License

It Would Be Great if You Also Bring:

• Experience working collaboratively with diverse teams across multiple trades and departments in an industrial or wastewater treatment setting.

• Demonstrated ability to lead or mentor less-experienced mechanics, fostering a safe and productive team environment.

• Proficiency with computers and software for equipment diagnostics, maintenance tracking, and technical documentation.

Physical Requirements:

• This position requires flexibility to work varied hours and report during adverse or inclement weather conditions.

• Incumbents perform field and shop work at the wastewater treatment plant and associated facilities. Work involves lifting and carrying equipment and materials up to 50 pounds, climbing ladders in and out of tanks, and working in confined spaces.

• Employees regularly operate heavy machinery, rigging, and power tools, and work around high noise levels, noxious odors, and potentially slippery or uneven surfaces.

• Must be able to safely perform physically demanding tasks for extended periods, including standing, bending, kneeling, and reaching while completing maintenance, repair, and installation work.

Workplace Exposure:

• Work is performed outdoors and indoors in an industrial wastewater environment under all weather conditions.

• Employees are regularly exposed to chemicals, biohazards, and high noise levels.

• Position requires entry into confined spaces and use of appropriate personal protective equipment, including respirators, as needed.

• Employees must follow safety protocols to minimize exposure to potential hazards while performing maintenance, repair, and operational tasks.

Supplemental information

Working Conditions:

• Work LocationWest Point Treatment Plant - 1400 Discovery Park Blvd, Seattle, WA 98199.
• Work Schedule: This full-time position works a 40-hour work week. This position is covered under the provisions of the Fair Labor Standards Act (FLSA) and is overtime eligible
• Union RepresentationThis position is represented by SEIU 925.

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.

Application Process

If you are interested in pursuing this position and supporting King County’s vision for unified, equitable, and high-performing government, please follow the application instructions carefully. Provide us with your work history as applicable, ensuring that you provide details that highlight your ability to fulfill the requirements for this position.

If you need this announcement in an alternate language or format, or you would like to request accommodation or assistance in the application or assessment process, please contact Dan Shermanat dasherman@kingcounty.gov

King County's Vision, Mission, and ACTIVATE Values unite us.

King County serves residents with a relentless sense of urgency, delivering on commitments with transparency and accountability. We are action-oriented, creative problem solvers who collaborate across roles, engage directly with communities, and challenge the status quo to achieve meaningful impact. As a unified team, we uphold high ethical and stewardship standards, embrace change, stay curious, and continuously improve. Across all interactions, we listen first, act quickly, and stay aligned as a team to earn and sustain public trust. Learn more about our Vision, Mission, and ACTIVATE Values here and visit our Why work at King County page here

King County is an Equal Employment Opportunity (EEO) Employer

No person is unlawfully excluded from employment opportunities based on sex, race, color, national origin, ethnicity, religious affiliation, disability, sexual orientation, gender identity or expression, age except by minimum age and retirement provisions, pregnancy, status as a family caregiver, parental status, marital status, military status or status as a veteran who was honorably discharged or who was discharged solely as a result of the person's sexual orientation or gender identity or expression, citizenship or immigration status, genetic information, or other protected class. However, to the extent that distinction or differential treatment on the basis of citizenship or immigration status is authorized by either federal or state law, regulation, or government contract, it is not an unfair practice.