Ecolab

Senior Process Design Engineer – Industrial Wastewater

Ecolab$101K — $152K *
Energy & Utilities
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor’s or Master’s degree in Chemical Engineering
  • 10+ years of water and wastewater treatment process design experience
  • Strong background in industrial wastewater treatment and system integration
  • Experience developing process designs for complex treatment systems, including biological, chemical, and/or membrane processes

Responsibilities

  • Develop conceptual and preliminary process designs for wastewater treatment systems
  • Define treatment strategies based on wastewater characteristics and recovery goals
  • Prepare mass balances, process flow diagrams (PFDs), and system layouts
  • Generate complete process design packages, including PFDs and hydraulic calculations
  • Design full wastewater treatment trains, including various treatment processes
  • Select appropriate treatment technologies and perform equipment sizing
  • Support project execution through design reviews and system optimization

Benefits

  • Opportunity to own complex process designs from concept through startup
  • Exposure to a variety of wastewater treatment and reuse applications
  • Ability to work directly with customers and technology partners
  • Platform for providing technical leadership and knowledge sharing
  • Involvement in developing standard designs and continuous improvement initiatives
Full 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, commissioning, startup, and system optimization
  • Troubleshoot process performance issues and validate system performance in the field
  • Serve as a technical resource to sales, service, and implementation teams and support training and mentoring of engineers

Position Details

  • Location: Naperville, IL or Remote (U.S.-based, near a major airport)
  • Travel: Approximately 20%+ (domestic)
  • Employment Type: Full-time

Minimum Qualifications

  • Bachelor’s or Master’s degree in Chemical Engineering
  • 10+ years of water and wastewater treatment process design experience
  • Strong background in industrial wastewater treatment and system integration
  • Experience developing process designs for complex treatment systems, including biological, chemical, and/or membrane processes

Preferred Qualifications

  • 15+ years of process design experience
  • 5–10+ years of experience in industrial wastewater reuse and recycle systems
  • Experience with Food & Beverage wastewater treatment applications
  • Experience across other industrial sectors such as Chemical, Data Centers, or Primary Metals

Annual or Hourly Compensation Range

The pay range for this position is $101,400.00 - $152,100.00. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.

Benefits

Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families.Click here to see our benefits.

If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here.

About Ecolab

Ecolab provides comprehensive solutions, data-driven insights, and personalized service to customers in the food, healthcare, hospitality, and industrial markets in more than countries to advance food safety, maintain clean and safe environments, optimize water and energy use, and improve operational efficiencies and sustainability.

Ecolab Careers

Join Ecolab's dynamic team today and be part of a global leader in water, hygiene, and infection prevention solutions. At Ecolab, we are committed to advancing technologies and driving innovation that makes the world cleaner, safer, and healthier.

Work You’ll Do

At Ecolab, you will find job opportunities that promise robust growth and development in a culture that fosters leadership, innovation, and diversity. Our team is composed of over 48,000 dedicated professionals who lead the industry in delivering efficient solutions and services to our customers worldwide.

Professional Growth and Development

Embark on a career path that empowers your ambition. Ecolab offers a myriad of career advancement opportunities supported by comprehensive training programs and professional development courses. Our commitment to your growth is paralleled by our dedication to innovation and excellence in every aspect of our business.

Inclusive and Supportive Culture

Ecolab’s culture thrives on teamwork, respect, and diversity. We believe in creating an inclusive environment that values each individual’s unique background and perspectives. Diversity training and leadership programs are integral parts of our commitment to fostering an inclusive workplace.

Internship and Employment Opportunities

Whether you're starting your career or looking to make a change, Ecolab offers a range of employment and internship opportunities that can help you harness your skills and achieve your professional goals. Our hiring process is designed to be transparent and engaging, ensuring that all candidates are given the opportunity to showcase their strengths.

Benefits and Networking

Joining Ecolab means more than just employment; it’s an opportunity to be part of a global network of industry leaders and innovators. Our employees enjoy competitive benefits, including health, life, and dental insurance, retirement plans, and paid time off. We also encourage our team to connect and collaborate through various professional networking events.

Explore Job Opportunities

Are you ready to make a significant impact? Explore the various positions available at Ecolab, from entry-level roles to executive positions. Tailor your resume and prepare for interviews with our career experts who are here to support you every step of the way.

Stay Connected

Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players.

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Learn more about Ecolab
Size
47,000 employees
Market Cap
$41 billion
Industry
Net Income
-$1.2 billion
Founded
1923
5 Year Trend
-0.6%
Revenue
$11.7 billion
NASDAQ

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