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Process Engineer Jobs in Saint Charles, IL (NOW HIRING)

Ecolab

Principal Process Engineer

Chicago, IL · On-site

$101K - $152K/yr

Ecolab is looking for an experienced Principal Process Engineer with a strong background in industrial manufacturing at our Clearing, IL manufacturing facility. Clearing is the flagship manufacturing ...

Ecolab

Principal Process Engineer

Chicago, IL · On-site

$101K - $152K/yr

Ecolab is looking for an experienced Principal Process Engineer with a strong background in industrial manufacturing at our Clearing, IL manufacturing facility. Clearing is the flagship manufacturing ...

Plexus Corp.

Process Engineer

Buffalo Grove, IL · On-site

$70K - $105K/yr

The Process Engineer is responsible for providing technical expertise throughout the manufacturing process. This role involves offering guidance on best practices and equipment, optimizing production ...

Mondelez International

Process Engineer

Chicago, IL · On-site

$77K - $106K/yr

Bachelors' Degree (required) - Engineering (preferred) Job specific requirements: FMCG +2 year of experience in related process. Ability to challenge the status quo and work collaboratively between ...

Mondelez International

Process Engineer

Chicago, IL · On-site

$77K - $106K/yr

Bachelors' Degree (required) - Engineering (preferred) Job specific requirements: FMCG +2 year of experience in related process. Ability to challenge the status quo and work collaboratively between ...

Zachry Group

Sr Engineer Process

Downers Grove, IL

$148K/yr

Zachry Group is currently accepting applications for a Senior Process Engineer with Power Experience for our Downers Grove Engineering Design Center. Successful candidate will be responsible for ...

Zachry Group

Sr Engineer Process

Downers Grove, IL · On-site

$148K/yr

Zachry Group is currently accepting applications for a Senior Process Engineer with Power Experience for our Downers Grove Engineering Design Center. Successful candidate will be responsible for ...

Zachry Group

Sr Engineer Process

Downers Grove, IL · On-site

$148K - $211K/yr

Zachry Group is currently accepting applications for a Senior Process Engineer in our Downers Grove Engineering Design Center . Successful candidate will be responsible for leading a team supporting ...

Brindley Engineering

Associate Process Engineer

Lisle, IL · On-site

$90K - $130K/yr

Strong organizational, written, and verbal communication skills Professional Development Opportunities: • Development of experience leading small teams of process engineers in a multi-disciplinary ...

ITW Hi-Cone

Senior Process Engineer

Itasca, IL

$101K - $131K/yr

Position Summary The Senior Process Engineer serves as the technical leader for extrusion, material conversion, and labeling processes across Hi-Cone's global manufacturing network. This role is ...

Brindley Engineering

Associate Process Engineer

Lisle, IL · On-site

$90K - $130K/yr

Conduct field and technical evaluations of existing process units Perform calculations, develop PFDs and P&IDs, provide design documentation for downstream engineering disciplines, develop equipment ...

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All JobsProcess Engineer JobsProcess Engineer Jobs in Saint Charles, IL

Process Engineer information

See Saint Charles, IL salary details

$48.4K

$90K

$139.4K

How much do process engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for process engineer in Saint Charles, IL is $90,009.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,900.00 and $100,800.00 per year, depending on experience, location, and employer.

What is the work of a process engineer?

A process engineer designs, develops, and optimizes manufacturing processes to improve efficiency, quality, and safety. They analyze production workflows, troubleshoot issues, and implement improvements using tools like process flow diagrams and statistical analysis. Strong problem-solving skills and knowledge of industry standards are essential for this role.

What are some common challenges process engineers face when implementing process improvements, and how can they overcome them?

Process Engineers often encounter challenges such as resistance to change from team members, integrating new technologies with existing systems, and ensuring process changes meet regulatory standards. Overcoming these obstacles typically involves clear communication, involving stakeholders early in the process, thorough documentation, and piloting changes before full-scale implementation. Building strong cross-functional relationships and continuously gathering feedback also help ensure that improvements are effective and sustainable.

What is a process engineer?

Process Engineers are professionals who design, implement, and optimize industrial processes to improve efficiency, quality, and safety in manufacturing or production environments. They analyze workflows, troubleshoot process issues, and develop solutions to enhance productivity and reduce costs. Process Engineers often work in industries such as chemicals, pharmaceuticals, food and beverage, and energy, ensuring processes are compliant with environmental and safety regulations. Their work is vital for maintaining smooth operations and achieving organizational goals.

What jobs do process engineers do?

Process engineers design, develop, and optimize manufacturing processes to improve efficiency, safety, and quality. They analyze production data, troubleshoot issues, and implement process improvements using tools like process flow diagrams and statistical analysis. Their work often involves collaboration with production teams and requires knowledge of engineering principles and industry standards.

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

To thrive as a Process Engineer, you need a solid background in chemical, mechanical, or industrial engineering, often supported by a relevant bachelor's degree and understanding of process optimization principles. Familiarity with process simulation software (such as Aspen Plus or AutoCAD), Six Sigma methodologies, and quality management systems is typically required. Strong analytical thinking, problem-solving abilities, and effective communication skills set candidates apart in this role. These skills and qualifications are essential to improve efficiency, ensure safety, and drive continuous improvement in industrial and manufacturing processes.

What is the difference between Process Engineer vs Manufacturing Engineer?

AspectProcess EngineerManufacturing Engineer
CredentialsBachelor's in Engineering, certifications like Six SigmaBachelor's in Engineering, certifications like Lean Manufacturing
Work EnvironmentDesigning and optimizing processes, R&D settingsOverseeing production lines, factory floors
Industry UsageManufacturing, chemical, aerospaceAutomotive, electronics, consumer goods

Process Engineers focus on designing and improving manufacturing processes, often working in R&D or engineering departments. Manufacturing Engineers concentrate on implementing and managing production on the factory floor. Both roles require similar technical skills and certifications but differ mainly in their scope and work environment.

More about Process Engineer jobs
What are the most commonly searched types of Process Engineer jobs in Saint Charles, IL? The most popular types of Process Engineer jobs in Saint Charles, IL are:
What are popular job titles related to Process Engineer jobs in Saint Charles, IL? For Process Engineer jobs in Saint Charles, IL, the most frequently searched job titles are:
What cities near Saint Charles, IL are hiring for Process Engineer jobs? Cities near Saint Charles, IL with the most Process Engineer job openings:
Process Engineer jobs near you
Infographic showing various Process Engineer job openings in Saint Charles, IL as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 14% Part Time, 2% Temporary, and 3% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $90,009 per year, or $43.3 per hour.

Principal Process Engineer

Ecolab

Chicago, IL • On-site

$101K - $152K/yr

Full-time

Re-posted 19 days ago

Ecolab rating

7.5

Company rating: 7.5 out of 10

Based on 209 frontline employees who took The Breakroom Quiz

58th of 100 rated chemical manufacturers

Job description

Ecolab is looking for an experienced Principal Process Engineer with a strong background in industrial manufacturing at our Clearing, IL manufacturing facility. Clearing is the flagship manufacturing plant for our Global Water division, leading efforts in quality, water sustainability, and production.
This is a great opportunity to demonstrate Process Engineering and leadership skills across a wide variety of unit ops. This highly visible role enables the right candidate to impact multi-level of the organization delivering long term value.
What You Will Do:
  • Lead process engineering efforts and provide Colloidal and Latex manufacturing guidance to operations team. This will include close collaboration with production management and operations personnel.
  • Become Subject matter expert (SME) in Colloidal silica Manufacturing process to support continuous improvement in safety, quality and productivity work streams. Serve as back up support for escalated process engineering troubleshooting effort.
  • Leverage technical knowledge to up skill operations personals with goal to create autonomous teams with ability to analyze process input and decide on appropriate trouble shooting steps.
  • Support and help lead efforts to strengthen a world-class PSM safety culture.
  • Lead Process engineering input to continuous improvement and capital projects focused on safety, product quality, and process efficiencies
  • Plant contact for new product introduction scale-up efforts
  • Support efforts to develop more robust SPC capabilities
  • Working knowledge of DCS and PLC basic principles. Facilitate implementation of process visualization software and integration with current control systems
  • Create and maintain documentation of SOPs and manufacturing procedures
  • Work with different quality and engineering functions to implement best practices across all manufacturing processes

Minimum Qualifications
  • Bachelor's degree in Chemical Engineering or related Engineering discipline
  • Strong communicator and collaborator with experience working across multiple functions
  • 7 years of experience in chemical manufacturing environment.
  • Experience working in a PSM facility
  • Experience with MS Office suite
  • No immigration sponsorship is available for this position

Preferred Qualifications
  • 7+ years of experience in complex manufacturing environment
  • Experience with DCS or industrial process control experience including PLC and HMI programming
  • Successfully managed and participated in multifunctional project teams
  • Familiarity and expertise with resin, filtration technology or polymer manufacturing.

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.
Potential Customer Requirements Notice
To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to:
- Undergo additional background screens and/or drug/alcohol testing for customer credentialing.
Americans with Disabilities Act (ADA)
Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.

What Ecolab employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

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About Ecolab

Sourced by ZipRecruiter

Ecolab is a global sustainability leader offering water, hygiene and infection prevention solutions and services that protect people and the resources vital to life.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Saint Paul, MN, US

Year founded

1923

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