Senior Water & Wastewater Engineer
$115k - $140kSLR Consulting
We are SLR Consulting (US) a 500 coast-to-coast team of advisory environmental/engineering and regulatory professionals. We deliver environmental and sustainability services to our clients through the integration of over 30 advisory technical environmental and engineering disciplines to help clients address some of their most complex challenges around sustainability. We are Making Sustainability Happen.
As a mid- to senior-level Water & Wastewater Engineer you will play an important role on a team whose work is essential to achieving this goal. This position will embrace technical expertise with mentoring of junior level staff and an eventual leadership role for our team.
At SLR our water and wastewater engineers work on some of the most challenging water treatment projects across North America. Our team specializes in industrial wastewater treatment mine water management and treatment pumping and conveyance systems decentralized water and wastewater infrastructure and regulatory compliance projects.
This role offers the opportunity to work across the full project lifecycle from evaluating treatment technologies and conducting pilot studies to detailed design construction support startup and system optimization. Youll collaborate directly with clients operators regulators contractors and multidisciplinary engineering teams to solve complex water quality and treatment challenges.
Work directly with a multidisciplinary team of wastewater professionals whose expertise includes industrial treatment systems process engineering mine water management and environmental permitting. Youll collaborate closely with senior engineers with decades of experience and gain hands-on exposure to treatment design troubleshooting permitting and facility operations across a wide range of industries.
As our industrial wastewater practice continues to grow this position offers a long-term pathway into technical and project leadership. Successful candidates will have opportunities to lead projects mentor junior staff strengthen client relationships contribute to business development efforts and help shape the future direction of the practice while continuing to develop as a technical expert.
Responsibilities:
- Evaluate industrial mining municipal and commercial wastewater treatment challenges and develop practical cost-effective treatment solutions.
- Perform process evaluations feasibility studies bench-scale testing and pilot studies to assess treatment technologies and optimize system performance.
- Develop engineering designs for treatment systems including process flow diagrams hydraulic calculations equipment selection piping layouts and technical specifications.
- Assess and troubleshoot existing treatment systems identify operational improvements and support facilities in resolving treatment and compliance issues.
- Participate in field investigations site assessments construction observation startup commissioning and performance optimization of treatment facilities.
- Work directly with treatment plant operators and facility personnel to understand operational challenges and translate those needs into engineering solutions.
- Support water quality evaluations discharge permitting projects mixing zone analyses and regulatory compliance assessments.
- Interpret and apply federal state provincial and local regulatory requirements to client projects.
- Review operating data and treatment performance information to evaluate compliance identify trends and recommend process improvements.
- Coordinate with CAD designers and multidisciplinary engineering teams to develop plans drawings and construction documents.
- Lead technical tasks and provide guidance and mentoring to junior engineering staff.
- Develop and maintain long-term client relationships by serving as a trusted technical advisor on water and wastewater issues.
What Makes This Role Different
- Work on industrial and mine water projects that require creative engineering solutions.
- Gain exposure to projects from concept development through startup and optimization.
- Work directly with treatment system operators regulators contractors and client decision-makers.
- Participate in site visits throughout the United States and Canada.
- Help solve emerging water quality challenges involving metals nutrients treatment residuals PFAS and industrial process wastewater streams.
- Be part of a growing wastewater practice with opportunities for increasing technical and leadership responsibility.
Working @ SLR
With us there is no doubt youll grow your subject-matter expertise and industry knowledge. We care about investing in our employees for the long-run and if you ask our team theyll tell you thats just one of the many benefits of working here. We want to be a place where you can experience career growth and satisfaction for many years.
Heres what else youll enjoy as part of our team:
- Competitive total compensation package including medical dental orthodontia vision FSA/HSA generous PTO accrual 10 paid holidays 401(k) retirement account with company matching program company paid life insurance short & long term disability insurance and employee assistance program.
- The salary range for this position is $00. Final agreed upon compensation will be commensurate with individual education professional designation experience internal parity and location.
- Full-time permanent role with opportunities for professional growth and advancement
Qualifications/Education/Memberships:
- Bachelor of Science degree in Environmental Chemical or Civil Engineering
- 6 years of experience in industrial wastewater treatment engineering and
- Professional Engineer (PE) licensure
- Experience working with regulatory agencies clients and contractors
- Effective written/verbal communication and organization/analytical skills
- Proficient with Microsoft Office suite of software
- Proficiency in AutoCAD
- Possess a valid drivers license
- Willing to travel within the US and Canada by airplane and car including overnight travel
- Logical and methodical problem solving
- Attention to detail
- Excellent technical writing skills
- Strong communication skills and comfort with public speaking
- Ability to multitask and manage time effectively while working concurrently on different projects
- Ability to learn new skills
- Understand how to conduct internet and library research
- Ability to work well independently and as part of a team
- Understanding of budgets and deadlines
- Self-motivated requiring limited oversight on common tasks
- Pro-active in seeking work tasks
Diversity equity and inclusion (DE&I) are at the core of who we are and want to be.
SLR is proud to be an Equal Employment Opportunity / AffirmativeAction Employer. We are committed to equal employment opportunity regardless of race color ancestry religion sex national origin gender sexual orientation civil union status age citizenship marital status disability gender identity or expression genetic information or veteran status. At SLR we embrace diverse cultures perspectives skills and experiences within and outside our organization. We respect and celebrate differences and want to ensure that we continuously strive to build a place where everyone feels included and is encouraged to be their authentic self. We are committed to these values and our SLR Culture & Diversity Team works to actively promote diversity equity and inclusion across our people and talent processes operations and client work around the you have a disability and need reasonable accommodations at any point in the application or interview process please contact us at .Required Experience:
Senior IC
- OverviewCarollo Engineers is a leading engineering firm dedicated exclusively to water. For over 90 years, we've specialized in the planning, design, and construction of water, wastewater, stormwater, and reuse facilities, bringing innovative and sustainable solutions to...SeniorWaterFull timeLocal areaFlexible hours
$130k - $180k
Water/Wastewater Senior Project EngineerWater and Environment Jobs with David Evans and Associates:At David Evans and Associates, Inc., our Water... .... The Water/Wastewater Practice is seeking a Project Engineer in Portland, OR, Beaverton, OR, or Salem, OR.The ideal candidate...SeniorWaterWork at officeLocal areaFlexible hours$125k - $150k
...The opportunity: Associated Engineering, a proudly Canadian, Employee-owned Company... ...an experienced and dedicated Senior Environmental Wastewater Engineer to join our team in our Vancouver... ...management area of our core Water practice and mentor young professionals...SeniorWaterWork at officeLocal areaFlexible hours$100k - $130k
Water/Wastewater EngineerWater and Environment Jobs with David Evans and Associates:At David Evans and Associates, Inc., our Water and Environment... ...The Water/Wastewater Practice is seeking a Water/Wastewater Engineer in Portland, OR, Beaverton, OR, or Salem, OR.The ideal...WaterWork at officeLocal areaFlexible hours$100k - $130k
...Water/Wastewater 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$100k - $130k
David Evans and Associates, Inc. is hiring a Water/Wastewater Engineer in Portland, OR. The role involves planning and designing municipal water and wastewater infrastructure. Candidates should have a Bachelor's in Civil Engineering and 4-8 years of related experience....WaterFlexible hours- ...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
$154k - $230k
...A leading engineering firm seeks a Senior Managing Engineer to oversee water resource projects including fisheries, hydropower, and water treatment. The ideal candidate will have over 18 years of civil engineering experience and a Bachelor's degree in Civil or Structural...SeniorWater$94.3k - $137.4k
...currently initiating a search for a Senior Consultant, Water for our Mountain Pacific District. This... ...planning, design, and delivery of wastewater conveyance and pump station projects... ...opportunities to support and mentor junior engineers through technical guidance, project...SeniorWaterContract workFor subcontractorWork at officeLocal areaFlexible hours$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- ...on resilient, well‑designed water infrastructure, and that work... ...Stantec, our Water structural engineers take on complex, high‑impact... ...OpportunityWe are seeking a Senior Structural Engineer to play a... ...design, and delivery of water and wastewater facilities throughout the...SeniorWaterFull timeTemporary workPart timeCasual workWork at officeLocal areaRemote workFlexible hours
$119k - $170k
...Otak is seeking a Senior Water Resources Engineer to provide technical leadership on complex water resources projects, including stream and river restoration initiatives that enhance watershed health and community resilience. Located in either our Portland, OR, or Vancouver...SeniorWaterWork at officeLocal areaRelocationRelocation package$120.18k - $153.57k
...About the opportunity SWCA Environmental Consultants is currently seeking a Senior Restoration Engineer who can contribute to the growth of our ecological restoration practice in the Pacific Northwest, as well as support SWCA's ecological restoration projects throughout...SeniorWaterFull timeFor contractorsImmediate start- ...Water/Wastewater Project Manager/Project Engineer We are on the lookout for individuals who thrive in the collaborative spirit of engineering, where their efforts are appreciated, and excellence is recognized. Join our dynamic team where you can play a crucial role...WaterContract workTemporary workWork at officeLocal areaFlexible hours
- ...As a Senior Geotechnical Engineer, you will lead geotechnical tasks and lead the delivery for on a wide variety of projects, with a focus on medium... ...-scale civil infrastructure projects primarily in the water and transportation markets. These projects will include multiple...SeniorWaterContract work
$119k - $170k
Otak is seeking a Senior Water Resources Engineer to provide technical leadership on complex water resources projects, including stream and river restoration initiatives that enhance watershed health and community resilience. Located in either our Portland, OR, or Vancouver...SeniorWaterWork at officeRelocation package- ...transmission systems, our industry-recognized engineers and scientists have been at the forefront... ...Responsibilities In the role of the Senior Electrical Engineer - Battery Energy Storage... ...electrical, SCADA/telecommunications, water, and geotechnical engineers to develop complete...SeniorWaterFor contractorsWork at office
- Communities everywhere share the need for clean water. And as they work to meet that need, they’re facing new, more complex challenges... ...communities and protect vital resources? We’re seeking a Senior Engineer / Design Manager to join our growing Water team in Portland, Oregon...SeniorWaterFull timeTemporary workPart timeFor contractorsCasual workLocal areaFlexible hours
- ...Senior Transportation Engineer At AKS, we are growing and building for the future. We bring together multidisciplined experts across the land development... ...through construction Collaborate with surveyors, water resources engineers, and environmental scientists to...SeniorWaterLocal area
- ...the lights on, providing access to clean water, or transforming skylines, our work helps... ...team of over 50,000 planners, designers, engineers, scientists, digital innovators, program... ...SummaryType: Full-timeFunction: EngineeringExperience level: Mid-Senior LevelIndustry: ConstructionSeniorWaterLocal areaWorldwideFlexible hours
$133k - $210k
...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$140k - $200k
Kennedy Jenks (KJ) is hiring a Senior Process Design Engineer (Technical Lead) to drive the growth and delivery of innovative industrial water and wastewater projects across diverse market sectors. In this role you will lead complex process design efforts, guide multidisciplinary...SeniorWaterWork at officeWork from home2 days per week- ...the world?Watch Our Story:' Water Business Group is expanding,... ...and we’re seeking accomplished Senior Project Managers to help... ...drinking water and treating wastewater responsibly to developing sustainable... ...a lasting legacy.In 2026, Engineering News-Record ranked HDR fifth...SeniorWaterContract work
- ...provide integrated geotechnical and civil engineering, engineering geology, environmental... ..., including roadways, railroads, water, wastewater, stormwater, utilities, and associated... ...experience, and other qualifications, a Senior to Principal-Level Geotechnical or Civil...SeniorWaterFull timePart timeWork at officeLocal areaFlexible hours
$150k - $205k
...Landau Associates is seeking an experienced sediment remediation engineer to support our expanding sediment investigation and remediation... ...Management Program, etc.)Experience with integrating in-water and upland investigation and remedial strategies, including permitting...SeniorWaterFor subcontractor$119.04k - $192.42k
...Description Who We Are: West Yost is a water resource management and engineering firm focused exclusively on water.... ...plan, design, and deliver water, wastewater, and stormwater solutions that... ...our CA or OR office locations. ( Senior - Principal Engineer - Water...SeniorWaterTemporary workWork experience placementWork at officeLocal areaRemote workFlexible hoursNight shiftAfternoon shift- ...Job Description Job Description Job Description General Purpose: This position is a key member of the water accounting team, reporting directly to the Accounting Manager of the water company. This position plays a critical role in collaborating with water...SeniorWater
- ...Job Description Job Description Overview: Our client, an engineering firm specializing in renewable energy, water, and environmental solutions, is seeking a Senior Civil Engineer to lead the design and delivery of complex civil infrastructure projects, including...SeniorWaterPermanent employmentFull time
$105k - $135k
...Job Description Job Description GRI is seeking a Senior to Associate level Geotechnical Engineer, Geological Engineer, or Engineering Geologist with 1... ...development and marketing efforts focused on transportation, water & environment, energy and federal market sectors....SeniorWaterFull timeImmediate start- ...Senior Environmental Planning Project ManagerThe Senior Environmental Planning Project Manager will lead utility, water, solar, telecom, and other development projects, acting as a strategic... ...Planning, Environmental Engineering, Archaeology, Architectural History...SeniorWaterLocal area
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Water & Wastewater Engineer. Be the first to apply!
- hydraulic engineer Portland, OR
- hydraulic application engineer Portland, OR
- senior water resources engineer Portland, OR
- senior hydraulic engineer Portland, OR
- water engineer Portland, OR
- hydraulic modeling engineer Portland, OR
- senior business development Portland, OR
- senior devops engineer remote Portland, OR
- senior information technology project manager Portland, OR
- senior vmware engineer Portland, OR




