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Process Engineer Jobs in Illinois (NOW HIRING)

Engineer II Process

Downers Grove, IL · On-site

$84K - $119K/yr

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.

Engineer III Process

Downers Grove, IL · On-site

$106K - $149K/yr

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.

The Process Engineer is responsible for developing and maintaining automated processes and equipment. Essential Job Duties and Responsibilities: * Lead development, implementation, and optimization ...

The Process Engineer is responsible for developing and maintaining automated processes and equipment. Essential Job Duties and Responsibilities: * Lead development, implementation, and optimization ...

This person will be the plant's main process engineering expert. • Develop solutions to problems that adversely affect the APET processes in the Franklin Park IL plant. • Provide technical advice ...

This person will be the plant's main process engineering expert. Develop solutions to problems that adversely affect the APET processes in the Franklin Park IL plant. Provide technical advice ...

Develop engineering plan (control plans, PFMEA's, raw material specifications, process control parameters, CP calculations, etc.) * Implement engineering plans by evaluating current situations.

Develop engineering plan (control plans, PFMEA's, raw material specifications, process control parameters, CP calculations, etc.) * Implement engineering plans by evaluating current situations.

The Process Engineer will be involved in the design and construction of new projects and modification of existing equipment and efficiency improvements as required to meet safety, commercial ...

Spend time on production lines developing deep understanding of all equipment and process flow * Execute plant priorities established by CI and Engineering Manager * Execute capital projects that ...

Process Engineer

Channahon, IL · On-site

$98K - $110K/yr

The Process Engineer will be involved in the design and construction of new projects and modification of existing equipment and efficiency improvements as required to meet safety, commercial ...

This person will be the plant's main process engineering expert. · Develop solutions to problems that adversely affect the APET processes in the Franklin Park IL plant. · Provide technical advice ...

This person will be the plant's main process engineering expert. Develop solutions to problems that adversely affect the APET processes in the Franklin Park IL plant. Provide technical advice ...

The Process Engineer is responsible for developing and maintaining automated processes and equipment. Essential Job Duties and Responsibilities: * Lead development, implementation, and optimization ...

The Process Engineer will be involved in the design and construction of new projects and modification of existing equipment and efficiency improvements as required to meet safety, commercial ...

Spend time on production lines developing deep understanding of all equipment and process flow * Execute plant priorities established by CI and Engineering Manager * Execute capital projects that ...

Process Engineer

Crystal Lake, IL · On-site

$90K - $110K/yr

Monitor performance of process parameters that produce non-conforming products, low yields, or product quality issues. Interfaces with Quality and Engineering Departments to resolve manufacturing ...

Spend time on production lines developing deep understanding of all equipment and process flow * Execute plant priorities established by CI and Engineering Manager * Execute capital projects that ...

PROCESS ENGINEER Elk Grove Village, IL KEY RESPONSIBILITIES/ESSENTIAL JOB FUNCTIONS: * Lead daily molding operations, ensuring safe, efficient, amp; quality-focused production performance * Supervise ...

Engineer II Process

Downers Grove, IL · On-site

$84K - $119K/yr

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.

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Process Engineer information

See Illinois salary details

$48K

$89.2K

$138.1K

How much do process engineer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for process engineer in Illinois is $89,167.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,200.00 and $99,800.00 per year, depending on experience, location, and employer.

What engineers make $500,000 a year?

Highly experienced engineers in specialized fields such as petroleum engineering, aerospace engineering, or certain senior roles in software engineering can earn $500,000 or more annually, often including bonuses and stock options. These positions typically require advanced skills, extensive experience, and often involve leadership or executive responsibilities.

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 are Process Engineers?

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 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 role of a process engineer?

A process engineer designs, develops, and optimizes manufacturing processes to improve efficiency, quality, and safety. They analyze production data, troubleshoot issues, and implement process improvements using tools like Six Sigma and CAD software, often working in industrial or manufacturing environments. Certification such as a Professional Engineer (PE) license can enhance career prospects.

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.

What engineers make $200,000 a year?

Senior engineers in fields such as petroleum, software, aerospace, and chemical engineering often earn $200,000 or more annually, especially with extensive experience, advanced skills, and in high-demand industries. These roles typically require specialized knowledge, advanced degrees, and sometimes professional certifications like PE or PMP.

What Is a Process Engineer?

As a process engineer, often called a chemical engineer, you are responsible for creating efficient manufacturing processes in the manufacturing industry. You will evaluate current chemical processes and modify them as needed to ensure efficiency and profitability are maximized. You will also monitor processes for safety and environmental impact and seek to improve them whenever possible. Your responsibilities may vary depending on the particular industry in which you work and specialized skills sets may be required.

What do process engineers actually do?

Process engineers design, develop, and optimize manufacturing processes to improve efficiency, quality, and safety. They analyze production data, troubleshoot issues, and implement process improvements using tools like process flow diagrams and control systems, often working closely with production teams and utilizing industry standards. Their role ensures that manufacturing operations run smoothly and meet quality and safety standards.
What are the most commonly searched types of Process Engineer jobs in Illinois? The most popular types of Process Engineer jobs in Illinois are:
What cities in Illinois are hiring for Process Engineer jobs? Cities in Illinois with the most Process Engineer job openings:
Infographic showing various Process Engineer job openings in Illinois as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $89,167 per year, or $42.9 per hour.
Engineer II Process

Engineer II Process

Zachry Group

Downers Grove, IL • On-site

$84K - $119K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 6 days ago


Zachry Group rating

6.7

Company rating: 6.7 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

59th of 79 rated construction


Job description

Zachry Group is seeking Process Engineer II candidates for our Downers Grove Engineering Design Center.  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.

    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 material balance calculations and relief system analysis
    Experience in sizing and rating pumps, vessels and exchangers
    Experience in PFD and P&ID development
    Experience in developing instrument lists and line lists
    Good Communication Skills (Active Listening, Verbal, and Written)
    Complex Problem Solving (STEM)
    Attention to Detail
    Judgment and Decision Making
    Experience with Process Engineering Computer Software
    Strong desire to learn
    Ability to independently organize and prioritize work assignments and coordinate a variety of tasks, with ability to deal with conflicting priorities and deadlines.

PREFERRED QUALIFICATIONS
    Licensed Professional Engineer
    Experience as a Process Engineer in the refining, gas processing, chemical plant, food/beverage, corn wet milling, oilseed processing, decarbonization and/or energy transition industries.
PHYSICAL DEMANDS
Employee will be required to communicate in person, via telephone, email, manual dexterity, finger dexterity, multi limb coordination, oral expression, and comprehension. May be required to lift, carry and move objects safely.
WORK ENVIRONMENT
Will work in a general office environment. Capable of operating and functioning in a fast-paced work environment. Must possess a vision (corrected or uncorrected) that allows for clear visibility from a distance of 20 inches or less.

The above description covers the fundamental responsibilities of the Process Engineer II position. It shall not be construed as a complete listing of all miscellaneous, incidental or similar duties which may be required from day-to-day.

Zachry Group is dedicated in providing a Safe and Drug Free work environment; and is an Equal Opportunity Employer.

In accordance with Illinois Equal Pay Act, the expected salary range for this Illinois position, Process Engineer is between $84,500 and $119,025, annually.   Actual pay will be adjusted based on experience, geographic location, and other job-related factors as permitted by law. 

This position Process Engineer II is eligible for participation in Zachry's Total Employee Rewards Program, which includes medical, dental, vision, life insurance, disability coverage, and other ancillary benefits. This position is also eligible for participation in the 401(k) Retirement Savings Plan.
 

  • Develops Process Flow Diagrams (PFD), and Heat and Mass Balances (HMB)
  • Develops Piping and Instrumentation Diagrams (P&ID), and Process / Mechanical Equipment Datasheets
  • Performs hydraulic analysis and calculations for piping systems.
  • Develops process simulations.
  • Performs calculations for sizing and rating various equipment like pumps, horizontal and vertical vessels, heat exchangers, and air coolers.
  • Develops line lists, specialty items and piping tie-in lists.
  • Prepares instrument process datasheets and supports development of control narrative.
  • Writes Process Description and Process Design Basis
  • Devises new approaches to problems encountered, receives technical guidance on unusual or complex problems and supervisory approval on proposed plans for projects.
  • Works as a fully competent engineer in all conventional aspects of the subject matter or the functional area of the assignment. 
  • Follows project responsibilities as defined for the assigned project position.
  • Supports projects as an individual contributor.
  • Participates in various client PFD, P&ID, and Process Hazard Analysis reviews (i.e.HAZID, HAZOP/LOPA).
  • Responsible for design of relief system including contingency analysis, relief valve sizing, flare header design, and flare header analysis.
  • Present technical information to peers and/or clients for review and comment. 
  • Analyze problems and take appropriate action to ensure continuous and reliable operation of equipment and systems.
  • Performs other duties of a related nature which may be assigned.
  • Presents technical information to peers and/or clients for review and comment. 
  • Coordinates with High Value Engineering Center for engineering execution. 
  • Evaluates equipment and process system designs to ensure compliance with safety and environmental regulations.
  • Other duties as assigned

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About Zachry Group

Sourced by ZipRecruiter

Zachry Group is America's pacesetter in turnkey construction, engineering, maintenance, turnaround and fabrication services in the power, energy, chemicals, manufacturing and industrial sectors. It works with customers to plan, build, and renew their most critical facilities, so they can achieve their immediate and long-term goals, all at the highest safety standards. Zachry Group operates 35 offices, and averages 20,000 employees working in more than 400 locations nationwide. Please visit www.zachrygroup.com for more information.

Industry

Construction

Company size

10,000+ Employees

Headquarters location

San Antonio, TX, US

Year founded

1924