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Wastewater Process Engineer Jobs (NOW HIRING)

Black & Veatch

Sr Wastewater Process Engineer

Irvine, CA · On-site

$110K - $142K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Phoenix, AZ · On-site

$103K - $133K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Phoenix, AZ · On-site

$103K - $133K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Cary, NC · On-site

$96K - $124K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Cary, NC · On-site

$96K - $124K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Charlotte, NC · On-site

$102K - $132K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

Black & Veatch

Sr Wastewater Process Engineer

Seattle, WA · On-site

$118K - $153K/yr

Function in a lead wastewater process engineer role as a technical specialist in the areas of conventional wastewater treatment * Use processes such as physical/chemical primary treatment ...

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Wastewater Process Engineer information

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$49.5K

$92K

$142.5K

How much do wastewater process engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for wastewater process engineer in the United States is $92,018.00, according to ZipRecruiter salary data. Most workers in this role earn between $74,500.00 and $103,000.00 per year, depending on experience, location, and employer.

What does a wastewater process engineer do?

A Wastewater Process Engineer is responsible for designing, optimizing, and overseeing the systems and processes used to treat and manage wastewater. They ensure that wastewater treatment plants operate efficiently and comply with environmental regulations. Their work involves analyzing water samples, selecting treatment technologies, and troubleshooting issues in existing systems. Wastewater Process Engineers play a critical role in protecting public health and the environment by ensuring that water released from treatment plants is safe.

What are the key skills and qualifications needed to thrive as a wastewater process engineer, and why are they important?

To thrive as a Wastewater Process Engineer, you need a solid background in chemical, civil, or environmental engineering, typically supported by a relevant engineering degree and sometimes a Professional Engineer (PE) license. Familiarity with process simulation software (such as AutoCAD or HAZOP), SCADA systems, and regulatory compliance tools is essential. Strong problem-solving, teamwork, and communication skills help you collaborate across disciplines and address complex treatment challenges. These skills ensure efficient plant operations, regulatory compliance, and the protection of public health and the environment.

What are some common challenges wastewater process engineers face when optimizing treatment processes?

Wastewater Process Engineers often encounter challenges such as adapting to fluctuations in influent quality, keeping up with evolving regulatory standards, and integrating new treatment technologies into existing systems. They must frequently balance treatment efficiency with operational costs, all while ensuring environmental compliance. Collaboration with operations staff, maintenance teams, and regulatory agencies is essential to troubleshoot issues and implement process improvements effectively.

What is the difference between Wastewater Process Engineer vs Environmental Engineer?

AspectWastewater Process EngineerEnvironmental Engineer
CredentialsBachelor's in Environmental, Chemical, or Civil Engineering; often requires PE licenseBachelor's in Environmental, Civil, or Chemical Engineering; often requires PE license
Work EnvironmentWastewater treatment plants, industrial facilities, consulting firmsEnvironmental consulting, government agencies, industrial sites
Industry UsagePrimarily in water treatment and municipal wastewater facilitiesBroader environmental sectors including air quality, waste management, and remediation

While both roles require similar engineering credentials and often work in related environments, Wastewater Process Engineers focus specifically on designing, operating, and optimizing wastewater treatment systems. Environmental Engineers have a broader scope, addressing various environmental issues beyond wastewater, such as air pollution and site remediation.

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What states have the most Wastewater Process Engineer jobs?

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Wastewater Process Engineer jobs near you
Infographic showing various Wastewater Process Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 16% Part Time, 3% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $92,018 per year, or $44.2 per hour.

Senior Wastewater Process Engineer

Associated Engineering

Denver, CO • On-site

$125K - $150K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 3 days ago

Job description

The opportunity:
Associated Engineering, a proudly Canadian, Employee-owned Company is seeking an experienced and dedicated Senior Wastewater Process Engineer to join our team in our Vancouver, Edmonton, Calgary, Saskatoon, Regina or Markham office. In this role you will be responsible for leading process engineering elements for wastewater treatment projects that span planning, design, construction and operations-related activities.
What we offer:
  • Flexible/hybrid working arrangements, depending on position
  • Market competitive salaries, with annual reviews
    • Salary range of: $125,000-$150,000
    • Opportunity to become a shareholder and invest in the company's long term growth & success
    • Matching company pension program, increasing over time
  • Comprehensive benefits including:
    • Health/dental/vision coverage
    • Fitness allowance
    • Employee and family assistance programs
    • Mental health supports
  • Paid time off so that you can recharge including:
    • Generous paid vacation
    • Paid office closure over December holiday break
    • Industry leading paid sick time
    • Maternity/paternity leave top up program
  • Ongoing support for your professional development and growth
    • Active Young Professional group
    • Formal mentoring programs
    • Paid professional development hours
    • Capacity building seminars
    • Engineer In Training programs
  • Opportunities to participate in social club activities and events
    • Company-wide social events
    • Regular lunch-and-learns
    • Community volunteer opportunities

What you'll do:
  • Lead process engineering elements for wastewater treatment projects than span planning, design, construction and operations-related activities.
  • Equally important and integral to this role are the skills and experience required to develop the wastewater treatment area of our core Water practice and mentor young professionals.
  • Projects will include studies, assessments, preliminary and detailed design of wastewater treatment facilities. Responsibilities will include leading process planning, analysis, optimization and design activities and supporting cost estimating, specifications and contract document preparation and commissioning activities.
  • This role will also involve client liaison as well as supporting project pursuit teams in business development activities such as proposal preparation. In addition, you will contribute to topical marketing through activities such as conference presentations.
  • You will be responsible for leading process engineering elements for wastewater treatment projects that span planning, design, construction and operations-related activities. Equally important and integral to this role are the skills and experience required to develop the wastewater treatment area of our core Water practice and mentor young professionals.

Does this sound like you?
  • An undergraduate degree in civil, chemical, or environmental engineering from an accredited university
  • A graduate degree in environmental engineering from an accredited university with wastewater treatment process-based thesis research
  • Eligibility for professional licensing with applicable provincial association (e.g. PEO, APEGBC, APEGGA)
  • Minimum 10 years' professional experience
  • Application and use of treatment facility process simulators (e.g. BioWin, GPSX) and development of wastewater/recycle stream characterization programs
  • Conduct of process stress-testing programs and treatment performance evaluation / demonstration projects
  • Development of process designs and conduct of process alternatives evaluations across a wide range of unit processes used in treatment and/or resource recovery
  • Previous experience working in a consulting engineering environment
  • Effective project leadership, management, and organizational skills, including an ability to manage competing priorities
  • Committed team player with experience working with diverse teams, including managers, engineers, and operations and maintenance staff.
  • Excellent written communication and interpersonal and presentation skills with an ability to effectively engage audiences, as well as an ability to clearly summarize findings and offer meaningful insight
  • An orientation towards client service, including the ability to elicit and understand client needs and desired outcomes
  • Regular conference attendee and speaker

About Us:
At Associated Engineering, were passionate about not only the work we do but the communities we live and work in. Which is why sustainability is at the heart of everything we do. As a carbon neutral company since 2009, we help shape resilient and sustainable communities across Canada.
As a Platinum Member of Canada's Best Managed Companies since 2008, we take pride in nurturing a workplace where people thrive. We are an employer of choice providing our people with a supportive, collaborative, engaging and dynamic place to build a career, while bringing inspiration and innovation to our work.
Our company culture is shaped by:
  • Growth and development of our employees - chart your career course, whatever stage you are at!
  • A broad variety of meaningful work that supports local communities - we are a medium-sized company working on significant projects, helping to shape communities!
  • We care, we commit, we create - our promise to both clients and each other!

What's next? Ready to make an impact? Join a company that values your ideas, invests in your growth, and empowers you to shape the future. Apply today!
Want more information?
  • Check out what a day at Associated Engineering looks like via LinkedIn
  • Our Environmental, Social and Governance Report

This is for an existing vacancy.
AE is an Equal Opportunity Employer and encourages women, Indigenous peoples, persons with disabilities, members of visible minorities, and members of the LGBTQ+ community to apply. For applicants with disabilities, accommodations are available upon request for candidates taking part in all aspects of the selection process. We are also committed to protecting the privacy of your personal information and as such, it will be used for recruitment and employment purposes only.
JOB CODE: WW_PRENG.33

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