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Assistant Process Engineer Jobs in Chicago, IL (NOW HIRING)

Flex

Process Engineer

Buffalo Grove, IL

$99K - $137K/yr

The Process Engineer will be based in Buffalo Grove, IL reporting to the Process Engineering ... Develop and maintain process documentation. * Assist in the development of training and provide ...

Flex Ltd.

Process Engineer

Buffalo Grove, IL · On-site

$99K - $137K/yr

The Process Engineer will be based in Buffalo Grove, IL reporting to the Process Engineering ... Develop and maintain process documentation. * Assist in the development of training and provide ...

Pretium Packaging

Process Engineer

Saint Charles, IL · On-site

$96K - $130K/hr

... inspection. * Assist production with new project set-ups, tool changes and program adjustments ... in mechanical/plastics engineering or related field. * Reheat blow process and automation ...

Pretium Packaging

Process Engineer

Saint Charles, IL · On-site

... inspection. * Assist production with new project set-ups, tool changes and program adjustments ... in mechanical/plastics engineering or related field. * Reheat blow process and automation ...

Zachry Group

Engineer III Process

Downers Grove, IL

$106K - $149K/yr

The Process Engineer III will be responsible for routine process engineering and design tasks for ... Responsible for performing hydraulic analysis and calculations for piping systems. Assist with ...

Alsip MiniMill

Process Engineer

Alsip, IL · On-site

$105K - $125K/yr

The Process Engineer at the Alsip Mini Mill will be responsible for optimizing production processes ... Prepare technical scopes, evaluate vendor proposals, and assist with budgeting. * Oversee ...

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 ... Prepare technical scopes, evaluate vendor proposals, and assist with budgeting. * Oversee ...

Zachry Group

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 ... • Assist with sizing and rating various equipment like pumps, horizontal and vertical vessels ...

Cargill

Process Engineer

Hammond, IN · On-site

Job Purpose and Impact The Process Engineer will apply process and project engineering techniques to assist in the improvement of Starch processes and products. In this role, you will provide ...

Cargill

Process Engineer

Hammond, IN · On-site

Job Purpose and Impact The Process Engineer will apply process and project engineering techniques to assist in the improvement of Starch processes and products. In this role, you will provide ...

Cargill

Process Engineer

Hammond, IN

Job Purpose and Impact The Process Engineer will apply process and project engineering techniques to assist in the improvement of Starch processes and products. In this role, you will provide ...

Combined Metals

Process Engineer

Elgin, IL · On-site

Investigate customer complaints and assist in the determination of root causes and corrective ... process improvements. Education: * Bachelor's degree in Metallurgy, Metallurgical Engineering ...

Clayens US LLC

Process Engineer

Crystal Lake, IL · On-site

$90K - $110K/yr

... engineers and technical staff. * Provide leadership and training for Process Technicians on the ... Develop technical training and documentation for manufacturing new and existing products. * Assist ...

Combined Metals of Chicago

Process Engineer

Elgin, IL

$70K - $80K/hr

Investigate customer complaints and assist in the determination of root causes and corrective ... process improvements. Education: * Bachelor's degree in Metallurgy, Metallurgical Engineering ...

Gotion, Inc.

Process Engineer Intern

Manteno, IL

$20/hr

Key Responsibilities Assist the manufacturing team in evaluating and defining process flows, equipment selection, and technical documentation for new or existing production lines. Support engineering ...

Mondelez International

Process Engineer

Chicago, IL

$77K - $106K/yr

... * Assist in VSU for the new initiatives and enables the VSU team; help the line leader in internal ... Engineering (preferred) Job specific requirements: FMCG +2 year of experience in related process.

Reliance Gear

Entry-Level Process Engineer

Elmhurst, IL

$26.44 - $31.25/hr

Key Responsibilites * Assist with manufacturing process development for new and existing products. * Prepare engineering documentation and process plans. * Support process improvements to increase ...

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All JobsProcess Engineer JobsAssistant Process Engineer JobsAssistant Process Engineer Jobs in Chicago, IL

Assistant Process Engineer information

See Chicago, IL salary details

$14

$26

$49

How much do assistant process engineer jobs pay per hour?

As of Jul 20, 2026, the average hourly pay for assistant process engineer in Chicago, IL is $26.24, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $30.48 per hour, depending on experience, location, and employer.

What engineers make $300,000 a year?

Senior engineers in specialized fields such as petroleum, aerospace, or software engineering can earn $300,000 or more annually, especially with extensive experience, advanced skills, and leadership roles. High compensation often involves working in high-demand industries, holding managerial or executive positions, or possessing rare technical expertise and certifications.

What engineer makes $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 the key skills and qualifications needed to thrive as an Assistant Process Engineer, and why are they important?

To thrive as an Assistant Process Engineer, a solid background in chemical or process engineering, analytical problem-solving skills, and a relevant engineering degree are essential. Familiarity with process simulation software (such as Aspen HYSYS or AutoCAD), data analysis tools, and safety regulations is typically required. Strong teamwork, effective communication, and attention to detail help individuals stand out in this role. These skills and qualities ensure efficient process optimization, safe operations, and successful collaboration within engineering teams.

What does an assistant process engineer do?

An assistant process engineer supports the development, implementation, and optimization of manufacturing or production processes. They analyze data, assist in troubleshooting, and collaborate with engineers to improve efficiency and safety, often using tools like process simulation software. This role typically requires technical knowledge, problem-solving skills, and familiarity with industry standards and safety protocols.

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

AspectAssistant Process EngineerProcess Engineer
QualificationsBachelor's in Engineering or related field, some certificationsBachelor's or higher in Engineering, often with more experience
Work EnvironmentSupportive, entry-level, team-basedMore autonomous, project management responsibilities
ResponsibilitiesAssist in process design, data collection, troubleshootingDesign, optimize, and oversee manufacturing processes

Assistant Process Engineers typically support process development and troubleshooting under supervision, while Process Engineers take on more independent responsibilities in designing and optimizing processes. Both roles require similar educational backgrounds, but Process Engineers usually have more experience and autonomy in their tasks.

What are some common challenges faced by Assistant Process Engineers, and how can they effectively overcome them?

Assistant Process Engineers often encounter challenges such as adapting to rapidly changing project requirements, troubleshooting unexpected process inefficiencies, and balancing multiple tasks under tight deadlines. To navigate these obstacles, it's important to develop strong problem-solving skills, maintain clear communication with senior engineers and cross-functional teams, and stay organized through effective time management. Proactively seeking feedback and learning from experienced colleagues can also help in building confidence and technical expertise, paving the way for career progression.

What engineers make $200,000 a year?

Senior engineers in fields such as petroleum, aerospace, and software engineering often earn $200,000 or more annually, especially with extensive experience, advanced skills, and in high-demand industries. Executive-level engineering roles or those with specialized certifications and leadership responsibilities can also reach or exceed this salary level.
What are the most commonly searched types of Process Engineer jobs in Chicago, IL? The most popular types of Process Engineer jobs in Chicago, IL are:
What are popular job titles related to Assistant Process Engineer jobs in Chicago, IL? For Assistant Process Engineer jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Assistant Process Engineer jobs in Chicago, IL look for? The top searched job categories for Assistant Process Engineer jobs in Chicago, IL are:
Assistant Process Engineer jobs near you
Infographic showing various Assistant Process Engineer job openings in Chicago, IL as of July 2026, with employment types broken down into 1% As Needed, 76% Full Time, 20% Part Time, 1% Temporary, and 2% Contract. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $54,584 per year, or $26.2 per hour.
Process Engineer

Process Engineer

Sterling Engineering Inc.

Libertyville, IL • On-site

$120K - $145K/yr

Full-time

Re-posted 12 days ago

Job description

Process Engineer (Injection Molding)
Location: Libertyville, IL
Pay: $120,000 - $145,000/yr

Position Overview
We are seeking a hands-on Injection Molding Process Engineer to support and optimize molding operations at a new manufacturing facility with brand new molding machines and equipment. This role focuses on establishing robust molding processes, reducing scrap and cycle times, and driving continuous improvement across production. This is a floor-focused engineering role, working directly with molding presses, materials, and tooling to troubleshoot issues, develop stable process windows, and support validation and new product introductions.

Responsibilities
  • Establish and maintain robust process windows for injection molded components using Scientific Molding techniques and DOE (Design of Experiments)
  • Troubleshoot molding processes to identify and eliminate production defects
  • Optimize processes to reduce scrap, improve cycle times, and increase manufacturing efficiency
  • Conduct process validation and capability studies
  • Support new product introductions including process development and equipment qualification
  • Analyze workflow, equipment layout, and manufacturing processes to improve efficiency
  • Create and maintain process documentation, including work instructions and setup instructions
  • Support development and improvement of PFMEA and control plans
  • Investigate root causes of equipment or process failures and implement corrective actions
  • Collaborate with engineering, production, and quality teams on continuous improvement initiatives
  • Assist with technical writing, including procedures, risk assessments, and process documentation
Required Experience and Skills
  • Bachelor’s degree in Engineering
  • 8+ years of hands-on injection molding process experience
  • Strong troubleshooting experience with molding processes and production defects
  • Experience with hydraulic and electric injection molding presses
  • Knowledge of molding equipment including dryers, loaders, blenders, hot runner systems, and related processing equipment
  • Experience processing common resins such as Polypropylene, Polycarbonate, ABS, and Nylon
  • Experience developing, evaluating, and improving manufacturing processes
Preferred Experience
  • RJG Master Molder certification or Scientific Molding training
  • Experience with DOE (Design of Experiments) and process validation
  • Experience with EOAT, six-axis robots, and automation integration
  • Background in regulated or high-precision manufacturing environments
Qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity, or national