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Title Senior Water & Wastewater Project Engineer

Remote / Online - Candidates ideally in
Seattle, King County, Washington, 98127, USA
Listing for: Oregonite
Full Time, Part Time, Remote/Work from Home position
Listed on 2026-11-02
Job specializations:
  • Engineering
    Water Engineer, Environmental Engineer, Civil Engineering, Water Management
Salary/Wage Range or Industry Benchmark: 155000 - 187500 USD Yearly USD 155000.00 187500.00 YEAR
Job Description & How to Apply Below
Position: Job Posting Title Senior Water & Wastewater Project Engineer
What Your Day Will Look Like:

As a Senior Project Engineer, you will apply your technical expertise to the planning, design, and delivery of water and wastewater infrastructure projects. In this role, you will take ownership of key project components, collaborate with multidisciplinary teams, and ensure deliverables meet technical standards, regulatory requirements, and client expectations. You'll also have opportunities to expand your leadership responsibilities through project management, client engagement, and business development.

Projected Compensation: $155,000 - $187,500+ annually, depending on experience and qualifications. Compensation above this range may be considered for candidates whose experience and expertise significantly exceed the minimum requirements.

What You'll Do:
  • Prepare and review engineering plans, design calculations, specifications, and technical documents for water and wastewater infrastructure projects, including pipelines, pump stations, and treatment facilities.
  • Apply applicable engineering standards, regulations, and design criteria to ensure technical accuracy and compliance.
  • Coordinate project delivery efforts with internal teams, subconsultants, clients, and regulatory agencies.
  • Serve as a Task Lead, Assistant Project Manager or Project Manager on larger multidisciplinary projects, with opportunities to manage projects and contracts valued at $1M+.
  • Support project planning, cost estimating, scheduling, and quality control efforts throughout the project lifecycle.
  • Lead and participate in QA/QC reviews to ensure consistency, quality, and technical excellence across project deliverables.
  • Support business development activities, including client relationship management, proposal preparation, and project pursuits.
  • Contribute to securing and delivering approximately $750,000 to $1.25M+ in new work annually.
What You'll Need:
  • 12+ years of experience in water and wastewater engineering.
  • Active Professional Engineer (PE) license.
  • Bachelor’s degree in Civil, Environmental, Mechanical, or a related engineering discipline.
  • Strong understanding of water and wastewater infrastructure design principles and project delivery.
  • Excellent communication, coordination, and problem‑solving skills.
  • Experience working with multidisciplinary project teams and clients.
  • Basic proficiency with AutoCAD and Civil 3D is preferred but not required.

This job primarily operates in a professional office environment and routinely requires the use of standard office equipment such as computers, phones, and copy machines. May occasionally be exposed to noise.

While performing the duties of this job, the physical demands of the employee may include constant sitting, talking, hearing, repetitive motions, and occasional standing, moving, reaching, handling, grasping, feeling, and coordination. This job will rarely require lifting, carrying, pushing, or pulling over to 35 lbs.

What Benefits You'll Enjoy:

We invest in us. Because our team members go above, below, and beyond the surface to care for our communities (inside and out), we do our best to take care of you by providing acomprehensive benefits package! Eligibility for some of the benefits outlined below is based on full-time work status; part-time and contingent positions are only eligible based on hours worked.

If you have questions,

  • Career Growth & Development - Tuition reimbursement program, paid professional training, major license achievement bonus, extensive on-demand learning center, and paid professional memberships.
  • Work-Life Alignment - Industry-competitive PTO, seven paid holidays and two floating holidays, flexible work schedules, paid parental leave, and eligibility for hybrid and remote work options for some employees based on role…
Position Requirements
10+ Years work experience
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