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Senior Chemical Process Engineer Jobs in Romeoville, IL

Ecolab

Senior Chemical Engineer

Chicago, IL · On-site

$85.90K - $128.90K/yr

Nalco Water's Industrial RD&E group has an opening for a Senior Chemical Engineer in our Global ... This role focuses on helping move specialty chemical processes from the R&D bench to pilot and ...

Ecolab

Senior Chemical Engineer

Chicago, IL

$85.90K - $128.90K/yr

Nalco Water's Industrial RD&E group has an opening for a Senior Chemical Engineer in our Global ... This role focuses on helping move specialty chemical processes from the R&D bench to pilot and ...

Zachry Group

Sr Engineer Process

Downers Grove, IL · On-site

$103.80K - $134.20K/yr

Zachry Group is currently accepting applications for a Senior Process Engineer in our Downers Grove ... Chemical Engineering 15+ years of experience working as a Process Engineer within the Energy ...

Zachry Group

Sr Engineer Process

Downers Grove, IL · On-site

$103.80K - $134.20K/yr

Zachry Group is currently accepting applications for a Senior Process Engineer with Power ... Bachelor's Degree in Chemical or Mechanical Engineering, or related engineering discipline 15 ...

Alsip MiniMill LLC Defunct

Process Engineer

Alsip, IL · On-site

$145K - $165K/yr

Process Engineer Alsip MiniMill (AMM) was formed in 2015 when Corrugated Supplies Company purchased ... Support machine trials, chemical program evaluations, and grade development initiatives. Continuous ...

Zachry Group

Engineer II Process

Downers Grove, IL · On-site

Bachelor's Degree in Chemical Engineering 3 - 7 years of experience working as a Process Engineer within the Energy & Chemical Industries Experience in performing hydraulic analysis, heat and ...

Gotion, Inc.

Process Engineer Intern

Manteno, IL

$20/hr

... of senior engineers. Assist in tracking quality issues and maintaining documentation to help ... Required Qualifications Currently pursuing or recently completed a bachelor's degree in: o Chemical ...

Alsip MiniMill, LLC

Process Engineer

Alsip, IL

$145K - $165K/yr

The Process Engineer at the Alsip Mini Mill will be responsible for optimizing production processes ... Support machine trials, chemical program evaluations, and grade development initiatives. Continuous ...

Brindley Engineering

Lead Process Engineer

Lisle, IL · On-site

$140K - $185K/yr

Bachelor of Science in Chemical Engineering • Experience:Min Yr = 10+ • Licensure: P.E ... process unit operations and licensed technologies • Advanced knowledge of applicable codes and ...

Alsip MiniMill

Process Engineer

Alsip, IL · On-site

$145K - $165K/yr

The Process Engineer at the Alsip Mini Mill will be responsible for optimizing production processes ... Support machine trials, chemical program evaluations, and grade development initiatives. Continuous ...

Brindley Engineering

Lead Process Engineer

Lisle, IL

$140K - $185K/yr

Bachelor of Science in Chemical Engineering Experience:Min Yr = 10+ Licensure: P.E. Preferred ... Advance technical knowledge of refinery and chemical process unit operations and licensed ...

Brindley Engineering

Lead Process Engineer

Lisle, IL · On-site

$140K - $185K/yr

Bachelor of Science in Chemical Engineering • Experience:Min Yr = 10+ • Licensure: P.E ... process unit operations and licensed technologies • Advanced knowledge of applicable codes and ...

suncast

Process Engineer

Batavia, IL · On-site

$75K - $95K/yr

The Process Engineer is responsible for injection molding processes and products. This involves ... Bachelor's degree in plastics technology or chemical engineering with course work in injection ...

Sotera Health

Sr. Process Engineer

Oak Brook, IL · On-site

$105K - $135.70K/yr

... Sr. Process Engineer The Process Engineer analyzes process data to identify inefficiencies in the sterilization process and implements appropriate improvements. The Engineer also leads development ...

Suncast

Process Engineer

Batavia, IL · On-site

$75K - $95K/yr

The Process Engineer is responsible for injection molding processes and products. This involves ... Bachelor's degree in plastics technology or chemical engineering with course work in injection ...

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All JobsSenior Chemical Process Engineer JobsSenior Chemical Process Engineer Jobs in Romeoville, IL

Senior Chemical Process Engineer information

See Romeoville, IL salary details

$93.3K

$128.1K

$159.6K

How much do senior chemical process engineer jobs pay per year?

As of May 28, 2026, the average yearly pay for senior chemical process engineer in Romeoville, IL is $128,146.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,700.00 and $137,600.00 per year, depending on experience, location, and employer.

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

To thrive as a Senior Chemical Process Engineer, you need a strong background in chemical engineering principles, process design, and problem-solving, typically supported by a bachelor's or master's degree in chemical engineering. Familiarity with process simulation software (such as Aspen Plus or HYSYS), plant safety standards, and relevant certifications (like Professional Engineer licensure) is highly valuable. Strong analytical thinking, leadership, and effective communication skills help drive project success and lead cross-functional teams. These skills and qualities are crucial for optimizing manufacturing processes, ensuring safety, and delivering cost-effective solutions in complex industrial environments.

How do Senior Chemical Process Engineers typically collaborate with cross-functional teams during large-scale projects?

Senior Chemical Process Engineers frequently work alongside professionals from disciplines like mechanical engineering, instrumentation, safety, and project management. They play a key role in translating process requirements into actionable engineering solutions and ensure process integration aligns with overall project goals. Regular meetings, detailed documentation, and clear communication are essential, as these engineers often lead technical discussions, resolve interdisciplinary challenges, and coordinate between design, operations, and quality assurance teams to drive projects forward efficiently.

What are Senior Chemical Process Engineers?

Senior Chemical Process Engineers are experienced professionals who design, develop, and optimize chemical processes used in manufacturing. They lead projects, oversee process safety and efficiency, and mentor junior engineers. Their work ensures that industrial chemical operations are cost-effective, environmentally friendly, and comply with regulations. Senior Chemical Process Engineers often collaborate with multidisciplinary teams and play a key role in troubleshooting and continuous improvement initiatives.

What is the difference between Senior Chemical Process Engineer vs Chemical Process Engineer?

AspectSenior Chemical Process EngineerChemical Process Engineer
Required CredentialsBachelor's or Master's in Chemical Engineering; 5+ years experienceBachelor's in Chemical Engineering; entry to 2 years experience
Work EnvironmentDesign, optimization, and supervision in manufacturing or R&D facilitiesAssist in process design, testing, and operation in manufacturing plants
Employer & Industry UsageManufacturing, oil & gas, pharmaceuticals, chemicalsSimilar industries, often as entry-level or mid-level roles

The main difference between a Senior Chemical Process Engineer and a Chemical Process Engineer lies in experience, responsibilities, and seniority. Senior engineers typically lead projects, oversee teams, and have more advanced expertise, while chemical process engineers focus on supporting process design and operation. Both roles are essential in chemical manufacturing and related industries, but senior positions require more experience and leadership responsibilities.

What are the most commonly searched types of Chemical Process Engineer jobs in Romeoville, IL? The most popular types of Chemical Process Engineer jobs in Romeoville, IL are:
What cities near Romeoville, IL are hiring for Senior Chemical Process Engineer jobs? Cities near Romeoville, IL with the most Senior Chemical Process Engineer job openings:
Senior Chemical Process Engineer jobs near you
Senior Chemical Engineer

Senior Chemical Engineer

Ecolab

Chicago, IL • On-site

$85.90K - $128.90K/yr

Full-time

Posted 22 days ago

Ecolab rating

7.5

Company rating: 7.5 out of 10

Based on 190 frontline employees who took The Breakroom Quiz

53rd of 88 rated chemical manufacturers

Job description

Nalco Water's Industrial RD&E group has an opening for a Senior Chemical Engineer in our Global Pilot Plant Facility in Chicago, Il.
This role focuses on helping move specialty chemical processes from the R&D bench to pilot and commercial manufacturing through development, scale-up, and technology transfer. You will partner closely with Application Research, Marketing, and Supply Chain to support Ecolab's global new product pipeline launches.
You will help evaluate and improve processes to strengthen product performance and address manufacturing needs. The work includes contributing to new or improved products, processes, or systems and supporting intellectual property activities when applicable.
Depending on the project, you may serve as a technical contributor or workstream lead for product launch activities, partnering with cross-functional teams and sharing progress with stakeholders in R&D, Supply Chain, and Marketing. You may also support feasibility estimates, design implications, and financial inputs used for project justification.
What's in it For You:
  • The opportunity to take on some of the world's most meaningful challenges, helping customers achieve clean water, safe food, and healthy environments
  • The ability to make an impact and shape your career with a company that is passionate about growth
  • The support of an organization that believes it is vital to include and engage diverse people, perspectives and ideas to achieve our best

What You Will Do:
  • Support the design, troubleshooting, and improvement of chemical manufacturing processes
  • Establish process specifications and controls to meet customer and quality requirements
  • Use designed experiments and basic statistical analysis to understand and improve process capability
  • Contribute to research that develops and improves chemical manufacturing processes
  • Collaborate with internal and external partners to understand requirements for new products or processes
  • Conduct Initial economic and technical feasibility studies of new products and processing technologies
  • Develop detailed process design, manufacturing troubleshooting, and process control
  • Partner with manufacturing sites to identify improvement opportunities and support efficiency and cost initiatives
  • Support small-volume manufacturing and niche product needs as priorities require
  • Contribute to pilot plant improvement projects, including scope input and execution support
  • Provide technical input to corporate initiatives (e.g., EH&S, technology transfer, and process standardization)
  • Participate on Product Action Teams to improve product quality and capability
  • Help evaluate and implement new process equipment or analytical tools, including supporting capital requests and integration

Minimum Qualifications:
  • Bachelor's degree in Chemical Engineering or related with 2 years of Research experience.
  • High mechanical aptitude and attention to detail
  • Strong technical writing and communication skills
  • Ability to manage multiple tasks and projects concurrently
  • Ability to travel to various equipment vendors or Ecolab manufacturing locations, potentially up to 20%
  • Immigration sponsorship not available for this role

Annual or Hourly Compensation Range
The pay range for this position is $85,900.00 - $128,900.00. 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.
- Be fully vaccinated for COVID-19, including a booster if eligible, unless a religious or medical accommodation is requested by the applicant and approved by Ecolab.
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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