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Sr Process Engineer Jobs in Illinois (NOW HIRING)

Sterling Engineering

Senior Process Engineer

Waukegan, IL · On-site

$98K - $127K/yr

Position: Sr. Process Engineer / Project Engineer (Process) Location: Waukegan, IL 60087 onsite Duration: 24+ Months I am looking for a Senior Process Engineer to join my Sterling Engineering team.

Sedron Technologies

Senior Process Engineer

Chicago, IL · On-site

$130 - $160/hr

This Senior Process Engineer will take the lead in designing and optimizing process systems, and turning ideas into efficient, high-performing solutions. From crafting PFDs and P&IDs to collaborating ...

Amsted Automotive Group

Senior Process Engineer

Geneva, IL · On-site

$123K - $157K/hr

Amsted Automotive, Burgess-Norton division is seeking an experienced Senior Process Engineer to support manufacturing and process engineering initiatives across our global operations. This role is ...

Burgess Norton Mfg Co

Senior Process Engineer

Geneva, IL

$123K - $157K/yr

Amsted Automotive, Burgess-Norton division is seeking an experienced Senior Process Engineer to support manufacturing and process engineering initiatives across our global operations. This role is ...

Burgess Norton Mfg Co

Senior Process Engineer

Geneva, IL · On-site

$123K - $157K/yr

Amsted Automotive, Burgess-Norton division is seeking an experienced Senior Process Engineer to support manufacturing and process engineering initiatives across our global operations. This role is ...

Rivian

Sr. Process Engineer

Normal, IL · On-site

$98K - $123K/yr

The Senior Process Engineer position at Rivian will support our Drive Unit production and report to the Process Engineering Manager. This role requires a high level of technical ownership ...

Rivian

Sr. Process Engineer

Normal, IL · On-site

$98.50 - $123.10/hr

The Senior Process Engineer position at Rivian will support our Drive Unit production and report to the Process Engineering Manager. This role requires a high level of technical ownership ...

Rivian

Sr. Process Engineer

Normal, IL · On-site

$98K - $123K/yr

The Senior Process Engineer position at Rivian will support our Drive Unit production and report to the Process Engineering Manager. This role requires a high level of technical ownership ...

Amsted Automotive

Senior Process Engineer

Geneva, IL · On-site

$123.64 - $157.47/hr

SENIO009519 Description Amsted Automotive, Burgess-Norton division is seeking an experienced Senior Process Engineer to support manufacturing and process engineering initiatives across our global ...

Amsted Automotive Group

Senior Process Engineer

Geneva, IL · On-site

$123K - $157K/yr

Amsted Automotive, Burgess-Norton division is seeking an experienced Senior Process Engineer to support manufacturing and process engineering initiatives across our global operations. This role is ...

Rivian

Sr. Process Engineer

Normal, IL · On-site

$98K - $123K/yr

The Senior Process Engineer position at Rivian will support our Drive Unit production and report to the Process Engineering Manager. This role requires a high level of technical ownership ...

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 ...

Ingredion Incorporated

$113K - $146K/yr

As a Senior Process Engineer , you will be responsible for designing, optimizing, and standardizing manufacturing processes across plants of varying scale. This role leads cross-functional ...

Ingredion

Senior Process Engineer

Bedford Park, IL · On-site

$102K - $136K/yr

As a Senior Process Engineer, you will be responsible for designing, optimizing, and standardizing manufacturing processes across plants of varying scale. This role leads cross-functional initiatives ...

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/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 ...

Sotera Health

Sr. Process Engineer

Oak Brook, IL · On-site

$105K - $135K/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 ...

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Showing results 1-20

All JobsSr Process Engineer JobsSr Process Engineer Jobs in Illinois

Sr Process Engineer information

See Illinois salary details

$72.7K

$117.4K

$165.2K

How much do sr process engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for sr process engineer in Illinois is $117,364.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,800.00 and $130,300.00 per year, depending on experience, location, and employer.

What is a Sr Process Engineer?

Senior Process Engineers are experienced professionals responsible for designing, optimizing, and overseeing the processes used in manufacturing or production environments. They analyze workflows, troubleshoot process issues, and implement improvements to increase efficiency, reduce costs, and ensure product quality. Sr Process Engineers often lead teams, manage projects, and work closely with other departments such as quality assurance, maintenance, and operations. Their expertise is crucial in industries like chemicals, pharmaceuticals, oil and gas, and food processing. They typically hold a degree in engineering and have several years of experience in process engineering roles.

What are the key skills and qualifications needed to thrive as a Sr Process Engineer?

To thrive as a Sr Process Engineer, you need a solid background in chemical, mechanical, or industrial engineering, often with a bachelor's or master's degree and relevant industry experience. Familiarity with process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and knowledge of safety and regulatory standards are typically required. Strong problem-solving, project management, and communication skills help distinguish top performers in this role. These skills and qualifications are vital for optimizing processes, ensuring efficiency and safety, and driving continuous improvement in complex manufacturing environments.

How does a Sr Process Engineer typically collaborate with cross-functional teams to improve manufacturing efficiency?

Sr Process Engineers work closely with teams such as production, quality assurance, maintenance, and R&D to identify areas for process optimization. They often lead or participate in cross-functional meetings to gather data, analyze workflow bottlenecks, and implement solutions that enhance efficiency and product quality. Effective communication and project management skills are essential, as Sr Process Engineers must balance technical requirements with practical constraints while ensuring all stakeholders are aligned with proposed changes.

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

AspectSr Process EngineerProcess Engineer
QualificationsBachelor's degree in engineering, 5+ years experience, certifications like Six SigmaBachelor's degree in engineering or related field, 1-3 years experience
ResponsibilitiesLead process improvements, optimize manufacturing processes, mentor junior staffAssist in process development, data collection, support process optimization
Work EnvironmentManufacturing plants, industrial facilities, cross-functional teamsManufacturing settings, engineering teams, project-based tasks

The main difference between a Sr Process Engineer and a Process Engineer lies in experience, responsibility level, and scope of work. The Sr Process Engineer typically leads projects, mentors others, and has more advanced qualifications, while the Process Engineer supports and executes process improvements under supervision.

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 such as Six Sigma or PMP.

What does a senior process engineer do?

A senior process engineer designs, develops, and optimizes manufacturing or industrial processes to improve efficiency, safety, and quality. They analyze data, troubleshoot issues, and implement process improvements, often using tools like process simulation software and adhering to industry standards. They also mentor junior engineers and collaborate with cross-functional teams to ensure smooth operations.

What are popular job titles related to Sr Process Engineer jobs in Illinois?

For Sr Process Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Sr Process Engineer jobs in Illinois look for?

The top searched job categories for Sr Process Engineer jobs in Illinois are:

What cities in Illinois are hiring for Sr Process Engineer jobs?

Cities in Illinois with the most Sr Process Engineer job openings:

Sr Process Engineer jobs near you
Infographic showing various Sr Process Engineer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 21% Part Time, 2% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $117,364 per year, or $56.4 per hour.

Senior Process Engineer

Sterling Engineering

Waukegan, IL • On-site

$98K - $127K/yr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 5 days ago

Job description

Position: Sr. Process Engineer / Project Engineer (Process)

Location: Waukegan, IL 60087 onsite

Duration: 24+ Months


I am looking for a Senior Process Engineer to join my Sterling Engineering team. This is a hands-on role supporting API/drug substance process equipment from design and specification through procurement, installation, commissioning, and startup.


Qualifications Required

  • 10+ years of Process Engineering / Project Engineering experience with Reactors, vessels, tanks, mixers, pumps, filtration, and heat exchangers
  • Experience with PFDs, P&IDs, equipment specifications, datasheets, and URS documents
  • Conduct Vendor design reviews and FAT/SAT
  • Equipment installation, field support, commissioning, and startup
  • Pharmaceutical, biotech, API, drug substance, or specialty chemical manufacturing
  • Bachelor’s degree in Chemical Engineering, Mechanical Engineering, or a related discipline required.


About us…Sterling Engineering, in business for 57 years …we offer FULL BENEFITS! As a Sterling Engineering W2 employee on contract, you receive a Full Employee Benefits Package that includes Paid Time Off, Paid Holidays, 3 Medical plans to choose from, Dental & Vision plans, 401(k) with a match, and an Employee Stock Ownership (ESOP) plan.


Qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or genetic information.

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