This is an internal opening for current employees in the Wastewater Treatment Division in the Inventory Purchasing Specialist job classification only. This posting will be used to facilitate annual Job Progression for Wastewater, S.E.I.U., Local 925 - Inventory Purchasing Specialist I to progress to Inventory Purchasing Specialist II at their current Treatment Plant location and supervision.

About the Role:
The Inventory Specialist II purchases goods and services and ensuring documentation and inventory control.

Article 15.3 - Eligibility Progression Criteria Requirements:

• Successfully passed probation.
• The candidate possesses the certification and licenses required at the classification level.
• The candidate has completed the required training.
• The candidate has achieved an above standard rating (3.6667 to 4.333) or higher on their last performance evaluations or probationary evaluation; and has successfully completed any/all formal performance improvement plans.
• The candidate has sufficient experience at the established level in critical areas and under the critical circumstance to demonstrate competent performance and the higher-level classifications.
• The candidate has passed, at the established level, any required knowledge skills, general competency and/or specific technical proficiency tests.
• The candidate has been free of discipline for a minimum of one year and all disciplinary issues are resolved to the satisfaction of the review board.
• Required work portfolio elements.
• Required Signoffs.

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.

What You Will Be Doing:

The incumbents in this classification may perform all the functions of Level I in addition to the following:

• Purchase goods, commodities and services. Obtain price quotes, research vendor sources, and select vendors for purchase of standard parts, materials, supplies, tools and services. Conduct price comparisons to identify savings.
• Coordinate with central purchasing office. Prepare requests for purchasing authorization/limited procurement requisitions for minority/women business enterprises. Prepare change order requests. Assist with the preparation and review of bid specifications.
• Receive, analyze and order critical and non-standard requests. Process standard non-inventory items. Update current computerized and manual pricing information.
• Expedite operational orders/overdue/back orders.
• Solve problems with accounts payable invoicing errors. Resolve discrepancies. Review billings for accuracy.
• Manage inventory warehousing disbursements and document stock levels, process inventory purchases, perform cycle counts, perform physical inventory audits, ship and receive from warehouse, and perform material handling. Acknowledge receipt of goods and services. Maintain adequate supplies to meet user needs.
• Maintain computerized internal purchasing/inventory records and information system. Input and research inventory and direct purchases, disbursements, inventory adjustments and the history of parts use. Update computer master files.
• Monitor the use, storage and handling of hazardous materials.
• Issue and maintain special tools and equipment.
• Recommend strategies for surplus, sale and salvage of obsolete inventory items; gather items.
• Help train new personnel.
• Help track warranties and documentation.
• Pick up and deliver items as required. Load and unload as required.

Qualifications You Bring:

• Knowledge of basic accounting and bookkeeping principles.
• Knowledge of basic warehousing equipment and supplies.
• Knowledge of general office procedures and policies.
• Knowledge of purchasing procedures and practices.
• Knowledge of inventory control and management systems.
• Knowledge of heavy duty and industrial parts, fleet maintenance repair process.
• Knowledge of automated information reporting systems.
• Oral and written communications skills.
• Interpersonal skills.
• Basic mathematics skills.
• Decision making and conflict-resolution skills.
• Problem solving and analytical skills.
• Skill in the use of personal computers, word processors and database management software.
• Skill in handling a number of projects or tasks simultaneously.
• Skill in operating forklift and other material handling equipment.
• Skill in interpreting and evaluating manuals and catalogs.

Working Conditions: Inventory Purchasing Specialist I to progress to Inventory Specialist II at their current Treatment Plant location and supervision.

• Work Location: The location will be your current worksite.
• 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 Representation: This position is represented by S.E.I.U. 925 (Wastewater Treatment Division).
• 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. 

• King County Application via NEOGOV
• Supplemental Materials - Documents / Portfolio - Please submit your completed Supplemental Materials / Documents / Portfolio to your Administrator's at your respective treatment plants, by Tuesday, December 30, 2025.
• Supervisor support/endorsement letter
• Responses to the supplemental questionsApplication 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. Applications without the above required materials may not be considered for this promotional opportunity.
  
  Anticipated Timeline for this recruitment (subject to change):
  • Portfolio / Documents - Due Tuesday, December 30, 2025 
  • Review Board evaluation of Portfolio / Document - January 2026
  • Panel interviews / field assessments: Mid - February 2026.
  Required Supplemental Materials to be reviewed by the Job Progression Promotion Review Board:
  • Pertinent copies of your licenses, certifications and training records.
  • Supervisor support/endorsement letter.
  • A portfolio or job progression book showing examples of your level of proficiency and demonstrated leadership and readiness to be considered for progression to Inventory Purchasing Specialist II.
  • A list of employees who can verify your work, technical expertise and leadership in the work examples that you have identified. These employees will be surveyed by WTD-HR and asked to rate your performance, technical expertise and leadership in the situations that you identified.
  
  What to Expect - Job Progression Promotion Review Board 
  Part 1 - Written Assessments, Interviews, Demonstrations/Working Assessments, Review Portfolio (including feedback from others on tasks).
  Part 2 - Trial Service Period - those recommended for progression to Inventory Specialist II by the Job Progression Promotion Review Board must successfully complete a 6-months Trial Service Period, at the employee's same site location/crew.
  
  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 have questions related to this recruitment process, please contact Diana Eberly (diana.eberly@kingcounty.gov).
  
  For more information regarding this recruitment, please contact:  diana.eberly@kingcounty.gov
  
  Discover More About the Wastewater Treatment Division: Visit our website and check us out at Facebook, X (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, 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.