Industrial Maintenance Mechanic - South Plant

Summary

This is a competitive posting, and the position is open to all qualified candidates

Join a team of journey-level mechanics performing repair and troubleshooting for both planned and unscheduled maintenance. In this role, you will perform and assist with a variety of mechanical maintenance tasks while developing your skills in an industrial environment.

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.

Working as part of a team, this person will apply their maintenance experience to perform high-level repairs on a variety of rotating mechanical equipment, including—but not limited to—biosolids decanting blowers, influent and effluent pumps, biogas scrubbing compressors, gearboxes, conveyance systems, and multiple piping systems.

The ideal candidate is goal-oriented and contributes to a safe, collaborative, and positive work environment. They will support a team culture focused on effective communication, working closely with other groups, and following good shop practices to maintain a high standard of workmanship.

Job Duties

What you will be doing:

Maintain, Repair, and Troubleshoot Equipment

• Perform maintenance, troubleshooting, repair, and overhaul of a variety of complex machinery used in plant operations.

Install and Maintain Piping and Plumbing Systems

• Install, repair, and maintain piping and plumbing systems for sewage, water, gases, chemicals, and solids using appropriate materials.
• Fabricate and install metal fixtures, including vents, air ducts, doors, louvers, containers, equipment covers, machinery bases, and support members.

Fabrication and Welding

• Design, fabricate, and repair plant piping, equipment guards, and bases.
• Use welding equipment, including metal inert gas (MIG), tungsten inert gas (TIG), arc welding, cutting torches, plasma cutters, and plastic welders.

Planning and Documentation

• Plan equipment repairs using blueprints, engineering drawings, computer-aided design (CAD), Maintenance Information Management System (MIMS), operations and maintenance manuals, vendor data, catalogs, and other resources.
• Collaborate with CAD personnel to provide as-built drawings to support parts/material ordering, equipment assembly, and modifications.

Other Duties

• Perform other duties as assigned to support plant operations and maintenance.

Experience, Qualifications, Knowledge, Skills

Qualifications you bring;

• Knowledge and hands-on experience maintaining, troubleshooting, and repairing pumps, motors, valves, and other rotating equipment used in industrial or wastewater systems
• Skill in safely using hand and power tools, precision measuring instruments, and machine tools (lathes, mills, drill presses); ability to perform basic welding and fabrication for equipment repair.
• Ability to understand and apply information from blueprints, schematics, manuals, and preventive maintenance procedures.
• Knowledge of industrial safety standards, including lockout/tagout, confined space entry, and proper handling of hazardous materials.
• Ability to work collaboratively with coworkers and other trades; communicate effectively in writing and verbally; and accurately document work in a computerized maintenance management system (e.g., Maximo).

• Knowledge of and experience with plumbing, pumps, hydraulics, welding, and rigging techniques and principles
• Experience in heavy equipment mechanical maintenance, including repairs and understanding replacement criteria.
• Knowledge of and experience applying industrial safety standards and procedures related to mechanical maintenance.
• Strong oral and written communication skills, with the ability to read, write, and follow instructions accurately.
• Experience with equipment operation, installation, and commissioning.

Supplemental Information

Working Conditions:

• Work Location: The team works onsite at South Treatment Plant 1200 Monster Rd SW, Renton, WA 98057
• Requirement: Employees must reside in Washington State and be within a reasonable distance to King County worksites to meet onsite reporting requirements.
• 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: Must be able to work flexible hours and report to the plant during adverse or inclement weather conditions. Perform field work at a wastewater treatment plant and associated facilities. Lift and carry equipment weighing up to 50 pounds. Work in confined spaces and climb in and out of tanks using ladders. Work safely around high noise levels and exposure to noxious odors.
• Workplace Exposures: Work in all weather conditions in an industrial wastewater environment. Exposure to chemicals, biohazards, and other potentially hazardous material. Frequent exposure to loud noise; hearing protection required. Entering and working in confined spaces. Use of respirators and other personal protective equipment (PPE) as required.

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)

• Technical vetting interview: Virtual interviews will be held in Mid-May 2026
• Panel interview: Virtual interviews will be held the held in Late May 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

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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.