Senior Wastewater Engineer
Carollo Engineers
Overview Carollo 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 the water sector's most complex challenges. We work with water agencies, municipalities, utilities, research organizations, and private companies across various industries, including technology, manufacturing, and beyond. These clients choose Carollo because we employ some of the most knowledgeable and experienced professionals in the world. When you join our team, you'll work alongside industry leaders who are advancing the science of water, protecting public health, and building resilient communities. Carollo's vision is to be the best water consulting firm and the best place for you to build your career. If you're passionate about making a difference in this critical field, we invite you to explore a career with Carollo. Responsibilities Work on projects related to municipal water and wastewater treatment plants, including but not limited to major treatment plant expansions, regional water quality studies, and critical water reuse projects that will create sustainable and resilient water supplies for the world Plans, schedules, and conducts engineering work on projects, with responsibility and authority for budget, schedule contractual obligations, and quality standards Negotiates critical and controversial issues with top-level engineers and officers of other organizations and companies May have responsibility for several projects concurrently Initiates and maintains extensive contacts with key engineers and officials of other organizations and companies, requiring skill in persuasion and negotiation of critical issues Has responsibility for preparing proposals, conducting interviews, and negotiating contracts with clients after selection Develops and maintains significant relationships with client management personnel Delivers high quality services within budget and schedule constraints Identifies need for and directs subconsultants performing services on projects Active in professional associations, including presentations of technical papers, member of technical committees, and officer of local or national organization Travel required when requested Qualifications Bachelor's Degree in Civil, Environmental, or Chemical Engineering Registration as a Professional Engineer 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems 5+ years of project management experience Must have demonstrated ability and experience in the design and construction phase of small, medium, and large sized infrastructure projects Ability to communicate effectively with clients and project team Proficient in MS Word and Excel Preferred Qualifications Master's degree in Civil or Environmental Engineering Other Compensation and Benefits Carollo is committed to providing employees with a competitive, comprehensive benefits program that provides the support employees and their families need to lead healthy, productive lives. Carollo’s benefits package includes paid time off and holidays, comprehensive health insurance coverage, pre‑tax savings account options for healthcare, dependent care and commuter expenses, disability insurance and life insurance options for you and your dependents. We also offer free Caregiver Support, Travel Assistance, counseling services, discount programs, and a Lifestyle Reimbursement Account. Other compensation that may be available includes: 401(k) company contribution matching, tuition reimbursement, discretionary bonuses, career advancement bonuses, professional registration bonuses, employee referral bonuses, and compensatory time for exempt employees. Flexible work arrangements may also be available. Eligibility for benefits varies based on employment status. #J-18808-Ljbffr Carollo Engineers, Inc.
- ...Description Job Description Client: ~ THE most reputable Water/Wastewater Infrastructure and Treatment Civil Consulting firm in the US... ...Responsibilities: Plans, schedules, and conducts engineering work on projects, with responsibility and authority for budget...SeniorLocal areaRelocation package
- Windsor Engineers in Portland seeks a Water + Wastewater Process Engineer to design and optimize innovative treatment solutions for municipal and industrial facilities. Candidates should have a Bachelor's degree in a related field, over 7 years of relevant experience,...SeniorRemote job
$130k - $180k
Water/Wastewater Senior Project Engineer 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 and water/wastewater management. Our projects incorporate...SeniorWork at officeLocal areaFlexible hours- Carollo Engineers, Inc. in Portland, Oregon seeks an experienced project manager in Wastewater Engineering. The role involves overseeing municipal water treatment projects, managing budgets, negotiating contracts, and maintaining client relationships. Qualified candidates...SeniorFlexible hours
- A leading civil consulting firm in Portland, Oregon is looking for an experienced engineer to manage wastewater infrastructure projects. The ideal candidate will have a Bachelor's degree in Civil Engineering and at least 10 years of relevant experience, including 5 years...SeniorRelocation package
- RPMGlobal is looking for a Water/Wastewater Senior Project Engineer in Portland, OR. The ideal candidate will lead complex municipal water and wastewater projects, mentor junior engineers, and engage with clients. Key responsibilities include planning and design of water...SeniorFlexible hours
- ...Bozeman, MT; Vancouver, WA; Denver, CO; Sioux Falls, SD, and Reno, NV. Job Summary DJ&A is seeking a full-time Water/Wastewater Design Engineer with 1 to 5 years of relevant experience in water/wastewater engineering. Other experience can include site civil,...Full timeFor contractorsLocal areaRemote workFlexible 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 and water/...Work at officeLocal areaFlexible hours- RPMGlobal is seeking a Water/Wastewater Engineer to join our team in Portland, OR. The role focuses on designing and planning municipal water and wastewater systems, offering a chance to grow in a collaborative environment. Ideal candidates will have a Bachelor's degree...Flexible 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....Flexible hours- A leading construction company is offering an internship for committed engineering and construction management students. This role provides unique experiences on challenging projects throughout the US, aiming to develop future leaders within the company. Responsibilities...Internship
$100k - $130k
Water/Wastewater Engineer Position is available in Portland, OR; Beaverton, OR; or Salem, OR. What You’ll Do Key Responsibilities Engineering & Design Perform planning and design for water and wastewater infrastructure systems Support development of: Conveyance and...Local areaFlexible hours- ...skill, grit and purpose. Join us as we strive to be the most skilled builder in America. Job Summary Sundt is looking for committed engineering (Civil, Structural, and Mechanical) and construction management students within accredited Universities/colleges. The internship...Weekly payFull timeFor contractorsApprenticeshipFor subcontractorInternshipWork at officeLocal areaFlexible hoursShift work
$100k - $130k
David Evans and Associates, Inc. is seeking a Water/Wastewater Engineer for our Portland, OR location. You will perform planning and design for water and wastewater infrastructure systems, contributing to project delivery while supporting junior staff development. Candidates...Flexible hours$120k - $150k
Ensero Solutions is looking for a Senior Process Engineer to join their Vancouver office. This role involves providing senior-level engineering support for water treatment and remediation projects, preparing engineering specifications, and building client relationships....SeniorRemote jobWork at office$80k - $105k
Water & Wastewater Engineering Designer US-OR-Portland Job ID: 2025-5838 | Type: Regular Full-Time | # of Openings: 1 | Category: Water-Wastewater... ..., and plan sheets using CAD software under the direction of senior staff. Assist with basic design calculations, quantity...Full time$105k - $145k
What Your Day Will Look Like As a Professional Engineer, you'll apply engineering principles and technical expertise to the design and analysis of water and wastewater infrastructure projects. You’ll take ownership of specific design tasks, coordinate with multidisciplinary...Casual workWork at officeLocal areaRemote workFlexible hours$105k - $145k
A leading engineering firm in Portland, Oregon, is seeking a Professional Engineer specializing in water and wastewater infrastructure projects. The role requires coordination with multidisciplinary teams and overseeing design tasks to ensure compliance with regulatory...- ...disciplined consulting firm with over 60 years of experience in civil engineering and related services. Our in-house expertise spans Civil and... ...of integrity, professionalism, and teamwork. Water and Wastewater Join our team and help shape reliable, efficient water and...
- ...please visit . SHIFT No Shift ($0) (United States of America) We are seeking a highly skilled and motivated Senior Manufacturing Engineer to join our team. This role is essential in driving engineering activities to develop and optimize manufacturing...SeniorFull timeWork visaShift work
- A civil engineering firm in Vancouver, WA is seeking a Mid-Level Civil Engineer with over 5 years of experience. The role involves managing water-wastewater infrastructure projects and mentoring junior engineers. The company emphasizes work-life balance and offers competitive...
$85k - $110k
A regional engineering consulting firm in Portland, Oregon, is seeking an Engineering Designer. You will prepare design plans and technical drawings for water and wastewater infrastructure projects while working under supervision. The ideal candidate will have a Bachelor...- A dynamic engineering firm is seeking a Hydraulics Project Engineer to support diverse projects related to bridge and culvert hydraulics, floodplain permitting, and restoration efforts in Oregon and Southwest Washington. The ideal candidate will have a Master’s degree in...Senior
$150k - $181k
Senior Process Mechanical Engineer - Water Portland, OR, USA Job Description Posted Monday, February 23, 2026 at 10:00 AM Founded in 1919, KJ has... ...pursuits. Collaborate with our existing contacts in the wastewater industry to identify and develop new business opportunities...SeniorWork at officeWork from home- A leading technology company in Beaverton seeks a CPU Debug and Power Management Verification Engineer. The role involves working throughout the product lifecycle, developing test plans, programming in multiple languages, and maintaining verification infrastructure. Ideal...Senior
- CDM Smith is seeking an experienced Civil Engineer in Portland, OR to support water-related projects. The role involves developing engineering designs, ensuring compliance, and mentoring junior staff while collaborating with clients. Candidates should have a Bachelor's...Senior
- ...perspectives to use. #LI-LP1 The Opportunity In this role, you will have the opportunity to: Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment Use processes such as physical/...SeniorFull timeWork experience placementWork at officeLocal areaFlexible hours
- A leading engineering firm is seeking a Civil Engineer 5 to create and sign off on complex engineering designs. This role involves reviewing designs for regulatory compliance, conducting site studies, and mentoring junior staff. Candidates must possess a Bachelor's degree...Senior
- A leading environmental consulting firm is looking for an experienced Pipeline Engineer to support water and wastewater pipeline projects in a hybrid work environment. The ideal candidate will have over 10 years of experience in pipeline engineering, strong communication...Senior
- A leading engineering firm is seeking a Senior Structural Engineer in Portland, OR, to lead the structural design of water and wastewater facilities. This role demands 8+ years of experience, a PE license, and expertise in structural modeling tools. You will mentor junior...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Wastewater Engineer. Be the first to apply!
- wastewater engineer Portland, OR
- senior development executive Portland, OR
- senior manager data science Portland, OR
- senior procurement Portland, OR
- senior director product management Portland, OR
- senior cost manager Portland, OR
- senior compliance officer Portland, OR
- senior tax director Portland, OR
- senior electrical estimator Portland, OR
- senior manager customer operations Portland, OR


