Senior Wastewater Engineer

carollo· Engineering
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📍 Portland, OR, USFULL TIME

About this role

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.

 

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Frequently Asked Questions

Is the salary disclosed for the Senior Wastewater Engineer position at carollo?
The salary for this Senior Wastewater Engineer role at carollo is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Wastewater Engineer position at carollo located?
This Senior Wastewater Engineer role at carollo is based in Portland, OR, US. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Wastewater Engineer role at carollo full-time or part-time?
This is listed as a FULL TIME position. It is posted as a Senior Wastewater Engineer role in the Engineering department at carollo.
Which team or department does the Senior Wastewater Engineer at carollo belong to?
This Senior Wastewater Engineer position is part of the Engineering department at carollo. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Wastewater Engineer position at carollo?
Click the "Apply Now" button on this page. You will be redirected to carollo's official application portal hosted on icims where you can submit your application directly.
When was the Senior Wastewater Engineer job at carollo posted?
This Senior Wastewater Engineer position at carollo was posted on Mar 23, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Wastewater Engineer
carollo
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You'll be redirected to carollo's official application page on icims.