Senior Process Design Engineer – Industrial Wastewater
Ecolab
Milwaukee, WI, US
Onsite
2026-07-04
Announced salary
$101,400 - $152,100
Estimated net pay
$6,304 - $8,984
/month · 25% withheld
after tax & contributions · Single, no dependents
Job description
We are seeking an experienced process engineering professional to lead the design and deployment of industrial wastewater treatment, reuse, and recycle solutions. In this role, you will serve as a technical leader supporting Food \& Beverage customers, while also contributing to projects across other industrial sectors. You will be responsible for process design from early concept development through detailed engineering, commissioning, and optimization, partnering closely with sales, project execution, and customers to deliver reliable, high\-performing treatment systems.
**What’s in it For You**
* Opportunity to own complex process designs from concept through startup and optimization
* Exposure to a wide range of industrial wastewater treatment and reuse applications, with a strong focus on Food \& Beverage
* Ability to work directly with customers, internal teams, and technology partners
* Platform to provide technical leadership, mentoring, and knowledge sharing across the organization
* Involvement in developing standard designs, best practices, and continuous improvement initiatives
**What You Will Do**
* Develop conceptual and preliminary process designs for industrial wastewater treatment, reuse, and recycle systems, primarily for Food \& Beverage applications
* Define treatment strategies and system configurations based on wastewater characteristics, recovery goals, and discharge or reuse requirements
* Prepare mass balances, process flow diagrams (PFDs), and high\-level system layouts
* Develop complete process design packages, including PFDs, P\&IDs, hydraulic calculations, and mass and energy balances
* Design full wastewater treatment trains, including pretreatment, core treatment, and post\-treatment processes
* Select appropriate treatment technologies and perform unit operation design and equipment sizing
* Generate equipment lists, process design criteria, and support solution costing
* Support project execution through design reviews, commissi
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