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Senior Process Engineer Jobs in Plainfield, IL (NOW HIRING)

Stepan Company

Process Engineer

Elwood, IL · On-site

$77K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Process Engineer will provide technical support in development and execution of Capital Projects from feasibility through construction and start-up. The person in this role will serve as the key ...

Stepan

Process Engineer

Elwood, IL

$77K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Process Engineer will provide technical support in development and execution of Capital Projects from feasibility through construction and start-up. The person in this role will serve as the key ...

Stepan

Process Engineer

Elwood, IL · On-site

$77K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Process Engineer will provide technical support in development and execution of Capital Projects from feasibility through construction and start-up. The person in this role will serve as the key ...

CAMCRAFT INC

Process Engineer

Hanover Park, IL · On-site

$85K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Process Engineer Pay rate per year $75-85K Hours: Mon-Fri onsite 8am-5pm Location: Hanover Park, IL If you enjoy teamwork, technology, a great workplace culture and being developed to make an impact ...

suncast

Process Engineer

Batavia, IL

$75K - $95K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Process Engineer is responsible for injection molding processes and products. This involves consultation with those responsible for product design, product creation, and maintaining current ...

Suncast

Process Engineer

Batavia, IL · On-site

$75K - $95K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Process Engineer is responsible for injection molding processes and products. This involves consultation with those responsible for product design, product creation, and maintaining current ...

suncast

Process Engineer

Batavia, IL

$75K - $95K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Process Engineer is responsible for injection molding processes and products. This involves consultation with those responsible for product design, product creation, and maintaining current ...

fairlife

Senior Dairy Processing Engineer

Chicago, IL

$107K - $138K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Sr. Dairy Processing Engineer will come in with deep technical expertise in fluid milk membrane ... Process design, scale-up, and optimization * Define critical process parameters, key performance ...

Magnetic Inspection Laboratory, Inc

Be Seen First

Process Engineer

Elk Grove Village, IL · On-site

$70K - $75K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Process Engineer provides hands-on leadership and guidance in implementing continuous process improvements of existing processes with the goal of improving company turnaround and efficiency.

fairlife

Senior Dairy Processing Engineer

Chicago, IL

$107K - $138K/yr

The Sr. Dairy Processing Engineer will come in with deep technical expertise in fluid milk membrane ... Process design, scale-up, and optimization * Define critical process parameters, key performance ...

fairlife

Senior Dairy Processing Engineer

Chicago, IL · On-site

$107K - $138K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Sr. Dairy Processing Engineer will come in with deep technical expertise in fluid milk membrane ... Process design, scale-up, and optimization * Define critical process parameters, key performance ...

Gotion, Inc.

Process Engineer Intern

Manteno, IL

$20/hr

Participate in identifying and resolving on-site process issues on the production line, under the guidance of senior engineers. Assist in tracking quality issues and maintaining documentation to help ...

Kosmos

Process Engineer

Elk Grove Village, IL

$110K - $140K/yr

  • Medical

  • Life

  • Retirement

Growing Manufacturing Company in Butte, Montana has a need for a Process Engineer. This is a direct hire role with a full benefits package and relocation. Prefer a B.S. in Engineering, and a minimum ...

Alsip MiniMill

Process Engineer

Alsip, IL · On-site

$105K - $125K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Process Engineer at the Alsip Mini Mill will be responsible for optimizing production processes, improving product quality, enhancing operational efficiency, and supporting continuous improvement ...

PTC ALLIANCE LLC

Process Engineer

Bedford Park, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Process Engineer works closely with production, quality, maintenance, and engineering teams to standardize manufacturing processes and implement Lean and Six Sigma best practices. Essential ...

PTC

Process Engineer

Chicago, IL · On-site

$85K - $105K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Process Engineer works closely with production, quality, maintenance, and engineering teams to standardize manufacturing processes and implement Lean and Six Sigma best practices. Essential ...

Zachry Group

Engineer III Process

Downers Grove, IL

$106K - $149K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Process Engineer III will be responsible for routine process engineering and design tasks for assigned projects based on specific and detailed instructions received from the assigned supervisor.

Alsip MiniMill, LLC

Process Engineer

Alsip, IL

$105K - $125K/yr

The Process Engineer at the Alsip Mini Mill will be responsible for optimizing production processes, improving product quality, enhancing operational efficiency, and supporting continuous improvement ...

Zachry Group

Engineer II Process

Downers Grove, IL

$84K - $119K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Process Engineer II will be responsible for routine process engineering and design tasks for assigned projects based on specific and detailed instructions received from the assigned supervisor.

KIK Consumer Product

Process Engineer

Chicago, IL · On-site

$100K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Your Role at KIK We are seeking a Process Engineer (Monday through Friday, 7:00 AM to 4:00 PM, with occasional weekend support during startups, shutdowns, and planned project work) to provide ...

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All JobsProcess Engineer JobsSenior Process Engineer JobsSenior Process Engineer Jobs in Plainfield, IL

Senior Process Engineer information

See Plainfield, IL salary details

$73.1K

$118.1K

$166.2K

How much do senior process engineer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for senior process engineer in Plainfield, IL is $118,052.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,400.00 and $131,100.00 per year, depending on experience, location, and employer.

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

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

What are the key skills and qualifications needed to thrive as a senior process engineer?

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What does a senior process engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

How much does a senior process engineer earn?

A senior process engineer typically earns between $80,000 and $130,000 annually, depending on experience, industry, and location. They often have specialized skills in process optimization, project management, and may hold certifications like Six Sigma or PE licensure.

What are some common challenges senior process engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.

What are the most commonly searched types of Process Engineer jobs in Plainfield, IL?

The most popular types of Process Engineer jobs in Plainfield, IL are:

What are popular job titles related to Senior Process Engineer jobs in Plainfield, IL?

For Senior Process Engineer jobs in Plainfield, IL, the most frequently searched job titles are:

What job categories do people searching Senior Process Engineer jobs in Plainfield, IL look for?

The top searched job categories for Senior Process Engineer jobs in Plainfield, IL are:

What cities near Plainfield, IL are hiring for Senior Process Engineer jobs?

Cities near Plainfield, IL with the most Senior Process Engineer job openings:

Senior Process Engineer jobs near you
Infographic showing various Senior Process Engineer job openings in Plainfield, IL as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 17% Part Time, 1% Temporary, 5% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $118,052 per year, or $56.8 per hour.

Process Engineer

Stepan Company

Elwood, IL • On-site

$77K - $110K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted yesterday

Job description

Job Description

Stepan Co. is hiring a Process Engineering position for our Millsdale, IL site. The Process Engineer will provide technical support in development and execution of Capital Projects from feasibility through construction and start-up.  The person in this role will serve as the key technical resource to support plant optimization efforts regarding capacity, cost, safety, quality and environmental improvements.

Responsibilities:

  • Serve as process engineer on capital project teams.
  • Develop technical deliverables on key capital projects to ensure workable, cost effective solutions are being developed that will meet the defined business/project objectives.  This includes
    • Process/Engineering Flow Diagrams
    • Material and Energy Balances (M&EB's)
    • Piping and Instrumentation Diagrams (P&ID's)
    • Functional & Control Descriptions (F&CD’s)          
    • Scope document reports
    • Process requirements of new equipment/instruments
  • Participate on plant optimization teams to identify opportunities for improvements in cost, capacity, environmental and safety issues.
  • Actively participate and contribute in all safety programs to continually improve the safety culture of the Company.
  • Effectively demonstrates ability to deliver on situations or problems without guidance or supervision
  • Help solve problems and make projects successful.
Qualifications
  • 4+ years of process engingeering experience
  • Experience in Chemical and related industries
  • Certified Six Sigma Green Belt is preferred
Education

BS Chemical Engineering

Pay Range: $77,000 - $110,000

The salary range for this position is determined by considering a variety of factors such as skills, experience, qualifications, and the location of the position.

#LI-RV1 #LI-ONSITE

At Stepan Company our comprehensive benefits package includes:

  • Discretionary Bonus
  • Medical, Dental, and Vision Insurance
  • 401K with Match
  • Profit Sharing
  • Paid Time Off (PTO)
  • Short-Term and Long-Term Disability (STD / LTD)
  • Dependent Care Flexible Spending Account (FSA)
  • Health Savings Account (HSA)
  • Paid Parental Leave
  • Adoption Assistance
  • Employee Assistance Program (EAP)

Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Established in 1932, Stepan Company is a major manufacturer of basic and intermediate chemicals including surfactants, polymers, as well as specialty ingredients that go into consumer, household, and institutional products such as laundry detergents, shampoos, and surface cleaners. Stepan Company currently has 19 global manufacturing locations and over 2,400 employees. We have a strong record of growth. Our growth allows us to provide meaningful career opportunities and stability to our team members. We have big goals at Stepan and know every team member will be crucial to achieving our objectives. Regardless of function, we are looking for team members who bring with them a growth mindset, an entrepreneurial spirit, and the ability to thrive in an evolving environment.

We celebrate diversity at Stepan and are committed to creating a diverse, inclusive environment. We are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetic information, disability, age, veteran status, or any other status protected by applicable law.

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