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Wastewater Process Engineer Jobs in Wisconsin (NOW HIRING)

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Wastewater EIT/Coordinator

Madison, WI · On-site

Master's degree in Civil, Environmental, Chemical, or related Engineering field * 3-5 years of experience with municipal or industrial wastewater treatment and treatment process design * Experience ...

Trilon Group

Wastewater Practice Lead

Sheboygan, WI · On-site

$175K - $225K/yr

You know treatment processes, collection systems and pumping facilities. Clients trust your judgment. Engineers seek your advice. And you have likely formed some strong opinions about how wastewater ...

Trilon

Wastewater Practice Lead

Sheboygan, WI · On-site

$175K - $225K/yr

You know treatment processes, collection systems and pumping facilities. Clients trust your judgment. Engineers seek your advice. And you have likely formed some strong opinions about how wastewater ...

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All JobsWastewater Process Engineer JobsWastewater Process Engineer Jobs in Wisconsin

Wastewater Process Engineer information

See Wisconsin salary details

$50K

$92.9K

$143.8K

How much do wastewater process engineer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for wastewater process engineer in Wisconsin is $92,878.00, according to ZipRecruiter salary data. Most workers in this role earn between $75,200.00 and $104,000.00 per year, depending on experience, location, and employer.

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 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 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.

What are popular job titles related to Wastewater Process Engineer jobs in Wisconsin? For Wastewater Process Engineer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Wastewater Process Engineer jobs in Wisconsin look for? The top searched job categories for Wastewater Process Engineer jobs in Wisconsin are:
Wastewater Process Engineer jobs near you
Infographic showing various Wastewater Process Engineer job openings in Wisconsin as of August 2026, with employment types broken down into 100% Full Time. Highlights an 90% In-person, 5% Hybrid, and 5% Remote job distribution, with an average salary of $92,878 per year, or $44.7 per hour.

Process-Mechanical Engineer

Donohue and Associates

Milwaukee, WI • On-site

$72K - $95K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 4 days ago

Job description

Our Process-Mechanical Engineer position offers an exciting opportunity for the selected candidate to be part of Donohue & Associates, a firm with national water/wastewater expertise in a small company environment. We are seeking an experienced engineer who can work with clients to provide project leadership, planning, design, construction, and operational services for wastewater and/or water systems. You will collaborate closely with clients and Donohue project team members throughout each of these project phases.
Desired Qualifications:
  • Experience in planning and designing water and wastewater systems, including pumping, process and mechanical piping, and related valves and process equipment.
  • Positive team- and client-focused attitude directed towards delivering quality work on time and within budget.
  • Strong communication and interpersonal skills.
  • Active participation in related professional associations a plus.

Requirements:
  • B.S. in Environmental, Mechanical, Chemical, or related engineering degree
  • PE registration
  • 10+ years of relevant technical experience,

An employee-owned engineering consulting firm since 1997, Donohue & Associates has multiple offices across the upper Midwest. We work in multi-discipline teams to provide municipal and industrial clients with client-focused services for drinking water, wastewater, and stormwater infrastructure. Engineering News-Record ranks Donohue among the Top 20 Wastewater Treatment Plant Design Firms, and our innovative design teams consistently receive awards for engineering excellence.
Donohue offers a competitive wage and comprehensive benefits package, including:
  • Medical, dental, and vision insurance
  • Robust 401(k) plan with company contribution
  • Paid time off and company holidays
  • Flexible work schedules around core hours
  • Short- and long-term disability/life insurance
  • Flexible spending accounts (FSAs)
  • Professional organization support
  • Discretionary annual bonuses
  • Industry-unique monthly profit-sharing plan

At Donohue, you'll find a collaborative environment where your contributions directly influence our success-and yours.
Donohue is an Equal Opportunity Employer.

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