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Senior Process Engineer Jobs in Illinois (NOW HIRING)

Amrize

Senior Process Engineer, Cement Plant

Fults, IL · On-site

$90.70K - $117.30K/yr

Join Amrize as a Senior Process Engineer, Cement Plant and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a company that ...

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Amrize

Senior Process Engineer, Cement Plant

Valmeyer, IL · On-site

$93.30K - $120.60K/yr

Join Amrize as a Senior Process Engineer, Cement Plant and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a company that ...

New

Amrize

Senior Process Engineer, Cement Plant

Ruma, IL · On-site

$94.80K - $122.60K/yr

Join Amrize as a Senior Process Engineer, Cement Plant and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a company that ...

New

Amrize

Senior Process Engineer, Cement Plant

Maeystown, IL · On-site

$91.70K - $118.50K/yr

Join Amrize as a Senior Process Engineer, Cement Plant and help construct what's next. If you're ready to put your skills to work on projects that matter - and build a career with a company that ...

New

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 Experience for our Downers Grove Engineering Design Center. Successful candidate will be responsible for ...

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 Engineering Design Center . Successful candidate will be responsible for leading a team supporting ...

Sotera Health

Sr. Process Engineer

Oak Brook, IL

$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 ...

Stantec

Senior Process Engineer - Industrial Water

Chicago, IL · On-site

$107.20K - $138.60K/yr

The role of the Senior Process Engineer is to productively network with a wide array of engineering, environmental, water and wastewater professionals on both technical project execution and related ...

MONOSOL LLC

Senior Process Development Engineer

Chicago, IL · On-site

$102.99K - $169.23K/yr

The Senior Process Development Engineer is responsible for leading complex process research and development activities to enable the successful scale-up, optimization, and industrialization of new ...

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Senior Process Engineer information

See Illinois salary details

$72.7K

$117.4K

$165.2K

How much do senior process engineer jobs pay per year?

As of May 28, 2026, the average yearly pay for senior 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 are the key skills and qualifications needed to thrive as a Senior Process Engineer, and why are they important?

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 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 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.

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 most commonly searched types of Process Engineer jobs in Illinois? The most popular types of Process Engineer jobs in Illinois are:
What are popular job titles related to Senior Process Engineer jobs in Illinois? For Senior Process Engineer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Process Engineer jobs in Illinois look for? The top searched job categories for Senior Process Engineer jobs in Illinois are:
What cities in Illinois are hiring for Senior Process Engineer jobs? Cities in Illinois with the most Senior Process Engineer job openings:
What are popular job titles related to Senior Process Engineer jobs in IL? For Senior Process Engineer jobs in IL, the most frequently searched job titles are:
Senior Process Engineer jobs near you
Senior Process Engineer

Senior Process Engineer

Pureline Treatment Systems LLC

Bensenville, IL

$135K - $200K/yr

Full-time

Posted 3 days ago

Job description

Role Overview

PureLine is seeking a Senior Process Engineer to support engineering projects involving chlorine dioxide systems for industrial and municipal applications. This role combines technical design work with hands-on problem-solving and field support.

What You’ll Do

• Develop PFDs, P&IDs, mass balances, and engineering documentation • Support system design, testing, and commissioning • Troubleshoot chemical, mechanical, or process control issues • Collaborate with R&D, Operations, and Manufacturing teams • Provide technical support to customers and internal stakeholders

What You’ll Bring

• Bachelor’s degree in Chemical Engineering (required) • 5+ years of process engineering experience • Strong understanding of pumps, piping, and chemical processes • Strong analytical and problem-solving skills • Ability to travel (domestic and occasional international)

Why Join PureLine

This role gives you the opportunity to lead impactful engineering work, contribute to system innovation, and support safe, reliable chlorine dioxide applications across multiple industries.

Must live within 30 minutes of Bensenville.

Apply