Senior Water/Wastewater Engineer
$105k - $179kKennedy Jenks
Kennedy Jenks is seeking a Senior Water and Wastewater Engineer to join our growing Water and Wastewater Infrastructure team in Washington. This role is ideal for an experienced engineer who can provide technical leadership across a range of water and wastewater infrastructure projects.As a key technical resource, you’ll collaborate with project teams, mentor developing engineers, and help deliver practical, code-compliant solutions for clients and communities.What You’ll DoAs a Senior Water and Wastewater Engineer, you’ll provide senior technical leadership across project design, quality review, team coordination, mentorship, and client support.Lead technical design and problem-solving: Serve as a senior technical resource on water and wastewater projects involving process systems, collection and distribution systems, conveyance infrastructure, pump and lift stations, and treatment facilities.Strengthen project quality: Provide QA/QC and technical review of designs, calculations, drawings, and specifications while developing practical, efficient, and code-compliant solutions.Coordinate across teams and stakeholders: Collaborate with multidisciplinary teams, clients, and regulatory partners to support constructable, cost-effective, and well-aligned project outcomes.Mentor and develop engineers: Guide junior and mid-level engineers through technical development, professional growth, and project execution.What Makes This Role DifferentMeaningful infrastructure impact: You will contribute to projects that help communities maintain reliable, resilient, and essential water and wastewater systems.Trusted technical influence: You will have the opportunity to shape decisions, guide technical direction, and bring senior-level judgment to complex project challenges.Opportunity to develop others: You will help build technical capability within the team by mentoring developing engineers and supporting their growth through hands-on project work.What You BringSenior technical judgment: The ability to evaluate complex design challenges, make sound engineering decisions, and recommend practical solutions.Collaborative approach: Comfort working across disciplines, offices, clients, and regulatory partners to keep project work aligned and moving forward.Quality-focused execution: A detail-oriented mindset with the ability to strengthen deliverables, support constructability, and uphold technical standards.Continuous learning mindset: Stays current on industry best practices, emerging technologies, and regulatory changes, and applies that knowledge to improve project solutions.Clear communication: The ability to explain technical information clearly in writing, conversations, presentations, and project discussions.Leadership mindset: A collaborative, solutions-oriented style that supports project success and helps others grow.QualificationsEducation: BS or MS in Civil, Environmental, or a related engineering field.Experience: 10+ years of relevant water/wastewater engineering experience.Mentorship: Demonstrated ability to mentor and guide junior engineers.Technical background: Broad experience across water and wastewater systems, including process systems, pump and lift stations, pipelines, treatment facilities, and regulatory requirements.Certifications or licenses: Professional Engineer (PE) license in Washington or ability to obtain within 6 months.Travel: Willing to travel to project sites, client meetings, and Kennedy Jenks offices.Kennedy Jenks supports a healthy work-life balance and utilizes a hybrid model of home and office work, with a minimum of two days per week in the office. This approach empowers our people to thrive, collaborate, and do their best work.Salary range for this position is expected to be between $105,000 and $179,000, and may vary based upon education, experience, qualifications, licensure/certifications, and geographic location.Benefits summary: Medical, dental, vision, life and disability insurance; a health savings account; a 401(k); bonus programs; tuition reimbursement; employee ownership opportunity; professional registration support; business travel assistance; competitive paid time off and holidays; an employee assistance program; and additional programs that support your wellbeing and professional growth.#LI-HybridJobFamilyTechnical Professional - EngineersPayTypeSalary
- ...but around the world.As part of HDR’s Washington Water Business Group, our Wastewater team fills a vital role supporting projects across... ...treatment and associated municipal projects. As a senior water/wastewater engineer in our group, you will play an integral part on various...SeniorWaterWork at office
$140k - $200k
Water / Wastewater Infrastructure Senior Project EngineerWater and Environment Jobs with David Evans and Associates:At David Evans and Associates, Inc.... ...communities.The Water/Wastewater Practice is seeking a Project Engineer in Bellevue, Olympia, Tacoma, Seattle, Tukwila,...SeniorWaterWork at officeLocal areaFlexible hours- ....As part of HDR’s Washington Water Business Group, our thriving... ...and delivery of complex water/wastewater pump station, pipeline and treatment... .... As a water/wastewater engineer in our group, you will play... ...closeout. You will be supported by senior engineers and/or project...WaterWork at office
$100k - $140k
Water/Wastewater Infrastructure Engineer Water and Environment Jobs with David Evans and Associates:At David Evans and Associates, Inc., our Water and Environment team excels in managing complex whole-system resources. We offer comprehensive solutions in natural resources...WaterWork at officeLocal areaFlexible hours- ...Description Job Description Hazen and Sawyer is seeking a Senior Wastewater Project Engineer/Manager for our Seattle office. As part of our design and... ...-owned company with a singular focus on "all things water." Our work includes planning, design, and oversight of...SeniorWaterContract workTemporary workWork at officeLocal areaFlexible hours
$140k - $200k
...professional construction managers, engineers, management consultants, planners, scientists... ...the OpportunityWe are looking for a Senior Industrial Water Engineer to join our growing team.... ...in delivering industrial water and wastewater projects. This role offers the...SeniorWaterTemporary workWork at officeLocal areaRemote workFlexible hours- Job ID: 41114Location: Seattle, WA, United StatesDepartment: Water EngineeringWork Type: HybridDate Posted: 2026-05-21SeniorWater
- ...around the world. We believe water is more than a resource, it's... ...drinking water and treating wastewater responsibly to developing sustainable... ...to the US Army Corps of Engineers and other clients under the... ...Program.HDR is looking for a senior integrated water resources planner...SeniorWaterLocal area
$150k - $205k
...and our community. We are seeking a senior-level Environmental, Civil, or Chemical Engineer to support our existing industrial stormwater and wastewater practice, including permit compliance... ...State Waste Discharge Permits and Water Pollution Control Facility permitsDeveloping...SeniorWaterWork at officeFlexible hours$178.4k - $276.6k
...OpportunityCommunities everywhere share the need for clean water, and the challenges are getting more... ...Mountain West Water team is hiring a Senior Civil Engineer to lead the hydraulic analysis,... ...Engineer of Record on complex water, wastewater, and stormwater conveyance programs....SeniorWaterFull timeTemporary workPart timeCasual workLocal areaFlexible hours$148k - $181k
...brilliant people to do brilliant things in engineering, management, and development services,... ...Buildings, Energy, Transportation, and Water. We believe in empowering our people... ...At Mott MacDonald, we are looking for a Senior Civil Engineer with 10+ years of...SeniorWaterFull timeTemporary workWork at officeRelocation3 days per week$102.1k - $153.2k
Communities everywhere share the need for clean water. And as they work to meet that need,... ...H2O+U.Your OpportunityThe role of the senior civil engineer is to work independently on small and... ...of professional experience in water, wastewater, and/or stormwater conveyance design...SeniorWaterFull timeContract workTemporary workPart timeFor contractorsFor subcontractorCasual workLocal areaFlexible hours$150k - $195k
...forSenior Electrical Engineerin Seattle, WAAs a Senior Electrical Engineer, you will:Our Electrical team is part of the Water Division, with a strong and growing presence... ...for municipal and/or industrial water and wastewater collection, distribution, and treatment facility...SeniorWaterFull timeWork experience placementWork at officeImmediate startFlexible hours- Communities everywhere share the need for clean water. And as they work to meet that need,... ...an experienced and versatile civil engineer with design and construction experience... ...on local and regional water treatment, wastewater treatment, and conveyance projects, supporting...SeniorWaterFull timeTemporary workPart timeCasual workWork at officeLocal areaFlexible hours
- ...community, but around the world. We believe water is more than a resource, it's a... ...safe drinking water and treating wastewater responsibly to developing sustainable... ...leave a lasting legacy.In the role of Senior Structural Engineer - Water Infrastructure, we'll count on...SeniorWaterContract workWork at office
$95k - $140k
If you are a Controls Engineering / Field Service Engineering professional looking to grow and... ..., sub-systems, and related equipment at wastewater facilities.This is a hands-on, site-... ...of the service area.**At Emerson Power & Water Solutions, we help customers in the world...SeniorWaterTemporary workLocal areaFlexible hours$117.8k - $176.8k
Communities everywhere share the need for clean water. And as they work to meet that need, they’re facing new, more... ..., H2O+U.Your OpportunityYou will lead the design and engineering of multiple water and wastewater related projects that range in size and complexity. As...SeniorWaterFull timeTemporary workPart timeFor contractorsFor subcontractorCasual workWork at officeLocal areaFlexible hours- Brown and Caldwell (BC) has an exciting opportunity for a Senior Electrical Engineer to support projects of strategic importance and work... ...perform industrial and municipal electrical, and other water/wastewater work.Position can be based anywhere in the Pacific or Hawaiian...SeniorWaterFull timeContract workTemporary workWork experience placementWork at officeLocal areaRemote workRelocation package2 days per week3 days per week
$115k - $135k
...Exponent Exponent is the only premium engineering and scientific consulting firm with the... ...Opportunity We are currently seeking a Senior Geotechnical Engineer for our Civil &... ...Geological Engineering, Groundwater/Surface Water Hydrology or Structural Engineering a...SeniorWaterWork at officeFlexible hours- ...mass grading and earthwork, wastewater treatment facilities, sanitary sewer lift stations, and water booster and pump stations.... ...closely with Project Managers and Senior Executives participating in... ...Requirements: ~ Bachelor’s degree in engineering, construction management or...SeniorWaterContract workFor subcontractorWork at office
- ...is our impact on the world?We believe water is more than a resource, it's a... ...delivering safe drinking water and treating wastewater responsibly to developing sustainable... ...but around the world.In the role of Senior Geotechnical Engineer, we'll count on you to:Perform,...SeniorWaterContract workWork at office
$148k - $181k
...brilliant people to do brilliant things in engineering, management, and development services,... ...Buildings, Energy, Transportation, and Water. We believe in empowering our people to... ...North America.We are looking to appoint a Senior Geotechnical Engineer to strengthen our...SeniorWaterTemporary workWork at officeLocal area3 days per week$72.5 - $85 per hour
...Senior Project Manager - Utility Capital Programs Seattle, WA Full-Time | On-Site... ...multidisciplinary project teams, engineering subconsultants, project controls, financial... ...of experience supporting municipal water, wastewater, stormwater, drainage, or related utility...SeniorWaterFull timeContract workFor subcontractor$142.2k - $248.8k
...realities that transform the world for good. Your impact As a Senior Geotechnical Engineer, you will lead geotechnical tasks and lead the delivery... ...-scale civil infrastructure projects primarily in the water and transportation markets. These projects will include multiple...SeniorWaterFull timeContract workRemote work- ...quality of life. We bring together planners, engineers, architects, construction management... ...community, but around the world. In the role of Senior Traffic Engineer, we'll count on you to:... ...with transit, roadway, water resources, and infrastructure teams to support...SeniorWaterWork at officeLocal area
- ...Facilitate meetings between AWS and key stakeholders, including senior government officials, regulators, industry associations and alliance... ...government levels.- Familiarity with environmental policy, water infrastructure and climate issues.Amazon is an equal opportunity...SeniorWaterLocal area
- ...impact on the world?We believe water is more than a resource, it's... ...drinking water and treating wastewater responsibly to developing... ...around the world. In the role of Senior Project Manager - Water, we'... ...Qualifications Bachelor's degree in Engineering 10 years related experience A...SeniorWater
$62.5 per hour
...Senior Cost Estimator / Cost Engineer - Seattle, WA Full-Time | On-Site | Seattle, WA Why Join Our Team Join a team supporting critical... ...project costs, and support successful delivery of complex water, wastewater, drainage, and facility projects. About Your Role...SeniorWaterHourly payFull timeFor contractorsLocal area- Trinnex in Seattle is seeking a Senior Cyber Security Analyst to safeguard critical software systems for water utilities. This role emphasizes securing the software development lifecycle and addressing vulnerabilities, ensuring resilience against evolving threats. You...SeniorWater
- ...but around the world.We believe building engineering is more than systems and structures, it’... ...a legacy of excellence.In the role of Senior Building Mechanical Engineer, we'll count... ...ductwork and piping areasDevelop air and water flow diagramsCoordinate HVAC system...SeniorWaterFor contractorsWork at office
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Water/Wastewater Engineer. Be the first to apply!
- water engineer Seattle, WA
- hydraulic engineer Seattle, WA
- hydraulic modeling engineer Seattle, WA
- hydraulic application engineer Seattle, WA
- senior hydraulic engineer Seattle, WA
- senior water resources engineer Seattle, WA
- senior manufacturing manager Seattle, WA
- senior business analyst Seattle, WA
- senior risk manager Seattle, WA
- senior cost estimator Seattle, WA


