Industrial Instrument HVAC Technician - South Treatment Plant

Job Description

Summary

This is a transfer opportunity, and first consideration is given to qualified transfer-eligible employees in the same classification. If no qualified transfer-eligible candidate is selected, external applicants will be considered.

This recruitment will hire for 1 position. In addition to the current opening, this recruitment may be used to establish a pool of qualified candidates to fill future Industrial Instrument HVAC Technician - South Treatment Plant Career Service vacancies within the Wastewater Treatment Division over the next 6 months.

The Instrument/HVAC Crew is an integral part of the maintenance group, and along with operations, our focus is the treatment of wastewater. We protect public health and enhance the environment by collecting and cleaning wastewater while recovering valuable resources for a healthy Puget Sound region.

About the Role
The King County Wastewater Treatment Division (WTD) has staffing needs for experienced and technically proficient Industrial Instrument/ HVAC Technician. The responsibilities of this classification include all related HVAC/R, building, and mechanical chiller systems. Performing a wide variety of highly skilled technical journey level duties to design, construct, maintain, troubleshoot, repair, and modify computerized systems, electrical, electronics, pneumatics, and hydraulics related to the HVAC instrumentation and equipment.

About the Team
The Wastewater Treatment Division is committed to the principles of equity and social justice. We value diverse perspectives and life experiences in our workforce and are committed to building a culturally diverse and inclusive environment. WTD strives to provide equitable services to residents and businesses across King County. This is an opportunity to use your skills and expand your technical abilities working with a group of Instrument Techs, HVAC technicians and Electricians that support South Treatment plant, Carnation treatment plant, Vashon treatment plant as well as all the East section conveyance pump stations and regulators. We work in a fast-paced industrial environment with a large variety of systems and equipment that are critical to the success of our mission.

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 Instrument Technician, 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, c omprehensive benefits , and growth opportunities.

Job Duties

What You Will Be Doing:

• Troubleshoot, repair, and maintain all plant Heating, Ventilation, Air Conditioning, and Refrigeration Systems. Including all Water-Cooled Chillers, reciprocating and screw type compressors package units with different tonnage configurations.
  
• Install, troubleshoot and repair distributed and supervisory control systems (DCS/SCADA), programmable logic controllers (PLCs) and single loop controllers (SLC's); Apply electronic theory, digital electronics, and proportional integral derivative (PID) control strategies to implement program changes to DCS/SCADA and PLCs.
• Analyze industrial processes in troubleshooting and repair of process control instrumentation. Design new controls and implement modifications to existing control systems. Update technical and process documentation, Work with operations personnel, engineers, and suppliers to explain the function of processes and procedures needed for the operation of new equipment.
• Make recommendations on purchasing and inventory requirements for all HVAC and or Instrument related equipment and determine appropriate inventory of spare parts for HVAC and Instrumentation.
• Assist in inspection of instrumentation installed by contractors as well as witnessing and assessing loop commission testing. Review, modify and update drawings to conform with established plant standards.
• Make recommendations on purchasing spares and inventory requirements for all HVAC and or Instrument related equipment.

Experience, Qualifications, Knowledge, Skills

Qualifications You Bring:

• Ability to recover and reuse different types of refrigerants using HVAC/R testing and recovery equipment while following EPA guidelines.
• Knowledge of the principles and techniques of instrumentation and HVAC electronics (typically found in a four-year apprenticeship program, two years of college level training or an equivalent combination of education and work experience). Demonstrated work experience (three years) in a journey level industrial instrumentation, HVAC or related field such as electronics.
• Knowledge of the installation, configuration, and maintenance of analyzers/sensors, control system computers, single loop controllers, signal converters, distributive and supervisory control systems, detection equipment/sensors, fuses, including soldering and brazing techniques.
• Knowledge of Proportional Integral Derivative (PID) control loops including single loop controllers and configuration.
• The position requires the ability to work all shift schedules and required reporting to work during adverse and inclement weather conditions and be on a rotating standby call list after a 9-month probationary period.
• Incumbents perform field work at a wastewater treatment plant and associated off-site facilities and are required to lift and carry equipment weighing up to 50 pounds, work in Permit Required confined spaces, kneel, crawl, walk and climb using ladders, catwalks, and stairways, work indoor and outdoor, in open tanks and vaults, and around noxious odors and high noise levels.

Physical Requirement:

• Incumbents perform field work at a wastewater treatment plant and associated facilities and are required to lift and carry equipment weighing up to 50 pounds, use ladders.

Workplace Exposures:

• Outdoors environment during wet weather, confined space and maybe exposure to hazardous chemicals and noxious odors.

Competencies you bring: Tech Savvy : Anticipating and adopting innovations in business- building digital and technology applications.
Collaborates : Building partnerships and working collaboratively with others to meet shared objectives.
Decision Quality : Making good and timely decisions that keep the organization moving forward.
Values Differences : Recognizing the value that different perspectives and cultures bring to an organization.
Communicates Effectively : Developing and delivering multi-mode communications that convey a clear understanding of the unique needs of different audiences.
Ensures Accountability : Holding self and others accountable to meet commitments.

Racially Just : identify and replace racists systems and structures with anti-racists and pro-equity approaches.

Required Licenses:

• A valid, unencumbered Washington State Driver’s License.
• City of Seattle Refrigeration Journeyman Mechanics License*** either Class A or C or a refrigeration journeyman level license from another state that is acceptable to the City of Seattle and that is transferable and verified. Ability to obtain the license from City of Seattle within 9 months pending job offer.

It Would be Great if You Also Bring:

• Allen Bradley PLC and Panel-view, programming experience
  
• Wastewater experience.
  
• A Boiler license, 4th Grade or better, Ability to obtain the license from City of Seattle within 9 months pending job offer.
  
• Chlorofluorocarbon (CFC) certification to buy and handle refrigerants
  
• City of Seattle Refrigerating Operating Engineer License
  
• City of Seattle Steam Operating Engineer Grade 3 License
  

Supplemental Information

Working Conditions:

• Work Location: South Treatment Plant, 1200 Monster Rd SW, Renton, WA 98057.Employees must reside in Washington state and within a reasonable distance to their King County worksite to respond to workplace reporting requirements.
• Work Schedule: This full-time position works a 40-hour work week with 4-10hr or 5-8hr schedule options available. This position is overtime eligible. This position requires the ability to work all shift schedules and to report to work during adverse and inclement weather conditions and be on a rotating call list upon completion of a 9-month probationary period. 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.
• Physical Requirement: Incumbents perform field work at a wastewater treatment plant and associated facilities and are required to lift and carry equipment weighing up to 50 pounds, use ladders, and there is exposure to hazardous chemicals and noxious odors. A pre-employment physical and reference checks will be conducted prior to any final job offer.

Application Instructions:

We welcome applications from allqualified transfer-eligible employees in the same classification s. 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.

To apply, submit a:

• Complete Application (Required)
• Resume (Required)
• Cover Letter (Required)

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

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

Discover More about DNRP: Visit our website , explore an interactive map of our recent accomplishments and check us out at Facebook , (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.

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 Emiliya Makaryan at emiliya.makaryan@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.

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.

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
• 12 paid holidays each year plus two personal 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: 10/6/2026 11:59 PM Pacific