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Senior Civil​/Mechanical Engineer

Job in Seattle, King County, Washington, 98127, USA
Listing for: King County
Full Time position
Listed on 2026-06-01
Job specializations:
  • Engineering
    Environmental Engineer, Civil Engineering
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below
Position: Senior Civil/ Mechanical Engineer

Overview

We are the Engineering and Technical Resources unit that provides engineering design and oversight of all capital projects within the Wastewater Treatment Division. We are dedicated public servants whose mission is to protect public health and enhance the environment by collecting and treating wastewater while recycling valuable resources for the Puget Sound region. This mission runs through all our work that requires tackling interesting and challenging projects.

We instill a supportive work culture that is open to new ideas and methods.

About the Role

Candidates will be involved in pump station upgrades, treatment plant upgrades, and conveyance projects. The following are some of the major on‑going or upcoming projects:
Replacement of turbo blowers at wastewater treatment facilities, addition of membrane clarification cassettes, pump station upgrades and replacements, anaerobic digestion expansion, sand filter rehabilitation, grit facility upgrades.

Several upcoming projects will be delivered under non‑traditional or collaborative delivery methods, such as General Contractor Construction Management and Progressive Design‑Build.

This position follows a hybrid work model, blending remote and in‑person work.

About the Team

King County Wastewater Treatment Division is one of the top wastewater utilities in the nation, involved in cutting edge technologies and approaches to conveyance, treatment, and reclamation of wastewater. The variety and scale of our facilities and projects will be beyond what most employers can offer.

This position is an opportunity to work on a fun and collaborative team who is dedicated to design, process improvement, and producing quality products to improve the WTD conveyance and treatment systems.

Benefits

WTD offers flexible working hours, union representation, pension plan, and a hybrid work‑from‑home and in‑person schedule. King County provides a comprehensive benefits package that is largely employer‑paid including Medical, Dental, Vision, Health Savings Plan, pension, Life, AD&D and generous paid vacation, holiday, and sick leave programs. The County also offers LTD and Supplemental Life plan participation. The value of this benefit package ranges between twenty thousand and forty thousand dollars annually, depending on whether you are single or have a family.

Commitment

to Equity, Racial and Social Justice

King County 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 Senior Civil/Mechanical Engineer, you will actively apply these principles in all aspects of your work.

Learn more about our commitment at http://(Use the "Apply for this Job" box below)..

What You Will Be Doing
  • Serve as Project Engineer on County design projects. Coordinate design with other engineering disciplines, the engineering design review team, and other team members; translate operational and maintenance requirements into terms the project team understands; review and consolidate technical comments from design reviews; serve as a single point of technical contact for the project to the Project Manager; develop work plan, schedule, and budget for the execution of designs for wastewater projects.
  • Review consultant prepared plans and specifications to ensure conformity to the County’s specifications, standards, and requirements.
  • Prepare public works and procurement contract documents and cost estimates to comply with County and State public bidding policy. Assist in the acquisition of all necessary permits prior to construction bidding.
  • Stamp and sign engineering or architectural plans as a Professional Engineer.
  • Review and approve shop drawings submitted by contractors, assist in the interpretation of specifications, advise on contractor compliance with contract documents, and review change orders when required by field personnel or as required by law.
  • Review proposals from equipment vendors. Review construction plans of other agencies and/or building owners to ensure that County…
Position Requirements
10+ Years work experience
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