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Water Wastewater Process Engineer Jobs (NOW HIRING)

Kennedy Jenks

Wastewater Process Engineer

Seattle, WA · On-site

$120K - $175K/yr

... water reuse projects, and efficient construction management practices that ensure quality, safety ... Kennedy Jenks is seeking a motivated Wastewater Process Engineer to join our growing Wastewater ...

kennedyjc

Wastewater Process Engineer

Federal Way, WA · Hybrid

$120K - $175K/yr

Kennedy Jenks is seeking a motivated Wastewater Process Engineer to join our growing Wastewater Infrastructure team in Washington. This role will be based in Washington, with opportunities to support ...

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All JobsWater Wastewater Process Engineer Jobs

Water Wastewater Process Engineer information

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$49.5K

$92K

$142.5K

How much do water wastewater process engineer jobs pay per year?

As of Jun 14, 2026, the average yearly pay for water 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 is the difference between Water Wastewater Process Engineer vs Water Treatment Plant Operator?

AspectWater Wastewater Process Engineer
CredentialsBachelor's degree in environmental engineering, chemical engineering, or related field; professional engineering license often preferred
Work EnvironmentDesign, analyze, and optimize water and wastewater treatment processes in engineering firms or industrial settings
Employer & IndustryEngineering consulting firms, municipal agencies, industrial plants
Job FocusProcess design, system optimization, troubleshooting, and compliance with environmental regulations

While Water Wastewater Process Engineers focus on designing and improving treatment systems through technical analysis and engineering principles, Water Treatment Plant Operators handle the day-to-day operation and maintenance of treatment facilities. Engineers typically work in office or lab settings, whereas operators work on-site at treatment plants. Both roles are essential in ensuring safe and compliant water treatment processes, but they differ in responsibilities, qualifications, and work environment.

What are the key skills and qualifications needed to thrive as a Water Wastewater Process Engineer, and why are they important?

To thrive as a Water Wastewater Process Engineer, you need a solid background in environmental or chemical engineering, with expertise in water and wastewater treatment processes, typically supported by a relevant engineering degree and, often, Professional Engineer (PE) licensure. Familiarity with design software like AutoCAD, process modeling tools, SCADA systems, and regulatory compliance standards is essential. Strong analytical thinking, problem-solving abilities, and effective communication skills help you collaborate with multidisciplinary teams and troubleshoot complex issues. These skills ensure the efficient design, optimization, and operation of treatment systems, safeguarding public health and environmental standards.

What are some common challenges Water Wastewater Process Engineers face when managing treatment plant upgrades?

Water Wastewater Process Engineers often encounter challenges such as coordinating with multiple stakeholders, ensuring compliance with evolving environmental regulations, and minimizing plant downtime during upgrades. Managing these projects requires strong communication skills to collaborate with operations staff, contractors, and regulatory agencies. Additionally, engineers must balance technical feasibility with budget constraints and maintain system performance throughout the transition.

What does a Water Wastewater Process Engineer do?

A Water Wastewater Process Engineer designs, develops, and optimizes processes for treating water and wastewater in municipal or industrial facilities. They ensure that water treatment systems operate efficiently, meet regulatory standards, and protect public health and the environment. Their work often involves evaluating treatment technologies, troubleshooting operational issues, and implementing improvements to reduce costs and enhance performance.
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What cities are hiring for Water Wastewater Process Engineer jobs? Cities with the most Water Wastewater Process Engineer job openings:
What states have the most Water Wastewater Process Engineer jobs? States with the most job openings for Water Wastewater Process Engineer jobs include:
What job categories do people searching Water Wastewater Process Engineer jobs look for? The top searched job categories for Water Wastewater Process Engineer jobs are:
Water Wastewater Process Engineer jobs near you
Infographic showing various Water Wastewater Process Engineer job openings in the United States as of June 2026, with employment types broken down into 100% Full Time. Highlights an 80% In-person, and 20% Hybrid job distribution, with an average salary of $92,018 per year, or $44.2 per hour.
Senior Wastewater Process Engineer

Senior Wastewater Process Engineer

ARCO a Family of Construction Companies

Chicago, IL • On-site

$135K - $175K/yr

Full-time

Medical, Dental, Vision, Retirement

Posted 16 days ago

Job description

ABOUT YOU

BlueWTR is hiring a Senior Process Engineer/Design PM to lead process design and technical delivery on industrial water and wastewater projects across hyperscale data center, RNG/biogas, semiconductor, advanced manufacturing, and food & beverage markets. You'll own basis-of-design through commissioning on projects ranging from greenfield UPW systems to multi-hundred-MW cooling and reuse infrastructure, working inside a design-build structure with the full backing of ARCO/Murray's national platform.

This is a senior, client-facing role with ownership over process scope, deliverables, and technical decisions.

  • Location: Denver or Chicago
  • Travel: 10-20% domestically

WHAT WE CAN OFFER YOU

Expected compensation range: $135K - $175K + Bonus.  This is an approximate range; actual salary may be higher or lower depending on your experience and skillset.

  • Industry-leading performance-based bonus program
  • Employee Stock Ownership Plan (ESOP)
  • Traditional and Roth 401(k)
  • Comprehensive medical, dental, and vision insurance
  • HSA and FSA options
  • Paid parental leave
  • Paid sabbatical and volunteer leave
  • Tuition reimbursement
  • Up to $28,000 in scholarships per child
  • 100% charitable match
  • Inclusive, ownership-driven workplace culture

A DAY IN THE LIFE
  • Lead process design on assigned industrial water and wastewater projects; membrane (UF/NF/RO), biological, chemical, solids handling, and reuse, from FEL through commissioning.
  • Own basis-of-design, mass balances, hydraulic profiles, PFDs, P&IDs, equipment layouts, and control narratives as primary author and approver.
  • Serve as the senior technical interface for clients, consulting engineers, and design-build partners; defend process decisions and translate them into executable scope.
  • Drive equipment selection, OEM evaluations, technical procurement, and submittal reviews.
  • Direct startup, commissioning, troubleshooting, and optimization in coordination with controls integrators and field teams.
  • Mentor junior engineers and review their deliverables; raise the technical bar across the process group.
  • Support business development through proposal input, scoping calls, and regional presence at industry events.

NECESSARY QUALIFICATIONS
  • 7–10 years in industrial water/wastewater process engineering or design-build process delivery.
  • Demonstrated ownership of PFDs, P&IDs, hydraulic profiles, mass balances, and basis-of-design packages on completed projects.
  • Hands-on experience with membrane systems (UF/NF/RO), biological treatment, chemical feed, and solids handling.
  • Strong client-facing communication; able to lead technical discussions with sophisticated industrial owners and their reps.
  • Experience inside design-build or EPC delivery, comfortable with cost, schedule, and constructability pressure on process decisions.
  • BS in Chemical, Environmental, or related engineering discipline.

Preferred Qualifications

  • PE license.
  • Direct project experience in hyperscale data center cooling, RNG/biogas, semiconductor UPW, or food & beverage process water.
  • Working knowledge of industrial controls, PLC/SCADA architecture, instrumentation, and process automation handoffs.
  • NPDES permitting and industrial discharge compliance experience.
  • Prior experience mentoring or formally managing other engineers.

MAKE YOUR MOVE

BlueWTR is ARCO/Murray's industrial water and wastewater solutions provider. We design and build process water, wastewater, reuse, and high-purity water infrastructure for clients in advanced manufacturing, RNG/biogas, semiconductor, food & beverage, and hyperscale data centers. Our work is technical, deadline-driven, and tied directly to clients' core business.

#LI-SB1 


LEGAL DISCLAIMER

EOE, including disability/vets

Qualifications:
  • 7–10 years in industrial water/wastewater process engineering or design-build process delivery.
  • Demonstrated ownership of PFDs, P&IDs, hydraulic profiles, mass balances, and basis-of-design packages on completed projects.
  • Hands-on experience with membrane systems (UF/NF/RO), biological treatment, chemical feed, and solids handling.
  • Strong client-facing communication; able to lead technical discussions with sophisticated industrial owners and their reps.
  • Experience inside design-build or EPC delivery, comfortable with cost, schedule, and constructability pressure on process decisions.
  • BS in Chemical, Environmental, or related engineering discipline.

Preferred Qualifications

  • PE license.
  • Direct project experience in hyperscale data center cooling, RNG/biogas, semiconductor UPW, or food & beverage process water.
  • Working knowledge of industrial controls, PLC/SCADA architecture, instrumentation, and process automation handoffs.
  • NPDES permitting and industrial discharge compliance experience.
  • Prior experience mentoring or formally managing other engineers.
Education:UNAVAILABLEEmployment Type: FULL_TIME
ARCO a Family of Construction logo

About ARCO a Family of Construction

Sourced by ZipRecruiter

Established in 1992 as The ARCO Way, this design‑build general contracting firm has grown to 48 regional offices across the U.S., with more than 1,000 associates delivering over $5 billion in construction annually. As one of the nation's top design‑build firms, ARCO specializes in cold‑storage, warehouses, laboratories, multi‑family housing, senior‑care campuses, food & beverage processing, data centers, and controlled‑environment agriculture. Their client base spans coast‑to‑coast repeat relationships in both commercial and specialty sectors.

Industry

Construction

Company size

1,001 - 5,000 Employees

Headquarters location

Saint Louis, MO, US

Year founded

1992

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