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Process Simulate Jobs in Illinois (NOW HIRING)

Combined Metals

Process Engineer

Elgin, IL · On-site

Proficiency in process simulation software * Excellent knowledge of process optimization techniques * Familiarity with industry regulations and standards Equal Opportunity Employer This employer is ...

PTC ALLIANCE LLC

Process Engineer

Bedford Park, IL · On-site

... process simulation, and ERP/MES systems is a plus. Number of Direct Reports : None Job Titles of ... Direct Reports: None Certificates, Licenses, and Registrations : Must possess a valid driver ...

PTC

Process Engineer

Chicago, IL · On-site

$85K - $105K/yr

... process simulation, and ERP/MES systems is a plus. Number of Direct Reports : None Job Titles of ... Direct Reports: None Certificates, Licenses, and Registrations : Must possess a valid driver ...

Zachry Group

Engineer II Process

Downers Grove, IL · On-site

$84K - $119K/yr

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 ...

Brindley Engineering

Associate Process Engineer

Lisle, IL · On-site

$90K - $130K/yr

Knowledge of process simulation software (e.g., Aspen Plus, HYSYS) preferred Management: Experience in coordinating across multiple disciplines required Other Skills: Strong organizational, written ...

Brindley Engineering

Associate Process Engineer

Lisle, IL · On-site

$90K - $130K/yr

Knowledge of process simulation software (e.g., Aspen Plus, HYSYS) preferred • Management: Experience in coordinating across multiple disciplines required • Other Skills: Strong organizational ...

Brindley Engineering

Associate Process Engineer

Lisle, IL · On-site

$90K - $130K/yr

Knowledge of process simulation software (e.g., Aspen Plus, HYSYS) preferred • Management: Experience in coordinating across multiple disciplines required • Other Skills: Strong organizational ...

Brindley Engineering

Staff Process Engineer

Lisle, IL · On-site

$110K - $150K/yr

Knowledge of process simulation software (eg Aspen Plus, HYSYS) preferred Management: Experience mentoring and leading small teams required Other Skills: Strong organizational, written, and verbal ...

Brindley Engineering

Staff Process Engineer

Lisle, IL

$110K - $150K/yr

Knowledge of process simulation software (eg Aspen Plus, HYSYS) preferred Management: Experience mentoring and leading small teams required Other Skills: Strong organizational, written, and verbal ...

Zachry Group

Engineer II Process

Downers Grove, IL · On-site

$84K - $97K/yr

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 ...

Brindley Engineering

Staff Process Engineer

Lisle, IL · On-site

$110K - $150K/yr

Knowledge of process simulation software (eg Aspen Plus, HYSYS) preferred • Management: Experience mentoring and leading small teams required • Other Skills: Strong organizational, written, and ...

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Process Simulate information

What are the key skills and qualifications needed to thrive as a Process Simulate Specialist, and why are they important?

To excel as a Process Simulate Specialist, you need a strong background in industrial engineering, manufacturing processes, and 3D simulation, often supported by a relevant engineering degree. Proficiency in Siemens Process Simulate software, knowledge of PLC programming, and familiarity with CAD systems are essential technical requirements. Strong analytical thinking, problem-solving, and effective communication skills set top performers apart in this field. These capabilities are crucial for accurately modeling, optimizing, and communicating complex manufacturing processes, ensuring efficiency and reducing production risks.

What is the difference between Process Simulate vs Process Engineer?

AspectProcess SimulateProcess Engineer
Primary RoleUses simulation software to model manufacturing processesDesigns, develops, and optimizes manufacturing processes
Skills & CertificationsCAD/CAM, simulation software proficiency, technical engineering backgroundProcess design, project management, engineering certifications
Work EnvironmentTypically in software labs or engineering officesFactories, manufacturing plants, engineering offices
Industry UsageUsed by manufacturing and automation companies for process validationEmployed in manufacturing, automotive, aerospace industries for process development

While Process Simulate focuses on modeling and testing manufacturing processes virtually, Process Engineers are responsible for designing and implementing these processes in real-world settings. Both roles require technical expertise, but Process Simulate emphasizes simulation skills, whereas Process Engineers focus on practical process development and optimization.

How does a Process Simulate specialist typically collaborate with engineering and production teams during a project?

A Process Simulate specialist works closely with both engineering and production teams to develop, test, and optimize manufacturing processes in a virtual environment before implementation on the shop floor. This collaboration involves regular meetings to review simulation results, gather feedback on proposed process changes, and ensure alignment with production goals and constraints. Effective communication is key, as the specialist must translate technical simulation data into actionable insights for engineers and operators. Such teamwork helps identify potential bottlenecks, improve efficiency, and reduce costly errors during actual production ramp-up.

What is a Process Simulate engineer?

A Process Simulate engineer specializes in using simulation software—such as Siemens Process Simulate—to design, validate, and optimize manufacturing processes in a virtual environment. Their main tasks include creating digital models of production lines, testing various process scenarios, and identifying improvements before physical implementation. This helps manufacturers save time, reduce costs, and minimize errors by addressing issues early in the design phase. Process Simulate engineers often collaborate closely with production, quality, and design teams to ensure efficient and error-free manufacturing workflows.
What are popular job titles related to Process Simulate jobs in Illinois? For Process Simulate jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Process Simulate jobs in Illinois look for? The top searched job categories for Process Simulate jobs in Illinois are:
Process Simulate jobs near you
Infographic showing various Process Simulate job openings in Illinois as of June 2026, with employment types broken down into 8% Locum Tenens, 60% Full Time, 12% Part Time, 8% Temporary, 4% Contract, and 8% Nights. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution.

Process Simulation Twin & Optimization Engineer - Refinery Experience Only

Aramco

Chicago, IL • On-site

Full-time

Posted 18 days ago

Job description

Aramco energizes the world economy.

Aramco occupies a special position in the global energy industry. We are one of the world’s largest producers of hydrocarbon energy and chemicals, with among the lowest Upstream carbon intensities of any major producer.

With our significant investment in technology and infrastructure, we strive to maximize the value of the energy we produce for the world along with a commitment to enhance Aramco’s value to society.

Headquartered in the Kingdom of Saudi Arabia, and with offices around the world, we combine market discipline with a generations’ spanning view of the future, born of our nine decades experience as responsible stewards of the Kingdom’s vast hydrocarbon resources. This responsibility has driven us to deliver significant societal and economic benefits to not just the Kingdom, but also to a vast number of communities, economies, and countries that rely on the vital and reliable energy that we supply.

We are one of the most profitable companies in the world, as well as amongst the top five global companies by market capitalization.

Overview

We are seeking an experienced Process Simulation Twin (PST) and Optimization Engineer to join our Reliability Solutions Department (RSD) within our Global Manufacturing Excellence Center.

Global Manufacturing Excellence (GME) is the recognized Center of Excellence driving value across Saudi Aramco’s Downstream Global manufacturing portfolio.

Your primary role is to deploy and sustain online process simulations (process digital twins), perform process optimization activities to identify opportunities, monitor process performance KPIs and develop advanced process optimization data-enabled solutions. This role sits at the boundary of process engineering and digitalization beyond traditional process simulation roles. You will be responsible for bridging the gap between rigorous thermodynamic models, process digital twins, real-time process data and hybrid analytics through AI.

Key Responsibilities

As the successful candidate you will be required to perform the following:

  • Lead the development, deployment, and sustainment of PST that integrate real-time process data with rigorous equation-oriented or sequential simulation engines in alignment with corporate objectives.
  • Configure and troubleshoot the connectivity between plant historians, laboratory information systems, and simulation software to ensure seamless data ingestion and reconciliation.
  • Utilize PST to perform automated monitoring of facility health, detecting deviations between ideal performance and actual plant operations to identify opportunity gaps.
  • Develop and maintain thermodynamic models and mathematical equations that accurately represent the behavior of various processes ensuring the PST accurately reflects the current state of the facility (including heat exchanger fouling, catalyst decay, etc.).
  • Perform offline engineering studies using PST to analyze complex operational problems, debottleneck constraints, and conduct "what-if" scenarios based on current operating conditions.
  • Act as the technical liaison between data teams and Operations/Process Engineering teams, leading technical sessions on model architecture, data quality, and commissioning.
  • Lead process optimization sessions to de-bottleneck key process units such as CDU/VDU, Hydrocrackers, Catalytic crackers, Diesel Hydrotreaters, Isomerization.
  • Benchmark process optimization KPIs with 15+ operating facilities and provide development of programs, processes, guidelines and best practices.
  • Provide subject matter expertise to operating facilities Operations, Maintenance, and Engineering teams by consulting, providing awareness sessions, and participating and leading technical exchanges and conferences.
Minimum Requirements
  • You must hold a Bachelor’s degree in Chemical Engineering.
  • You will have a minimum of 15 years of experience in Process Simulations, Online Modeling, or Real-Time Optimization (preferably ROMeo). 20 years of experience is preferred.
  • You will be able to Demonstrate expertise in process engineering and flowsheet-based processes simulation. Preferred Equation Oriented simulation.
  • You will have comprehensive understanding of refinery facilities, feedstock/product movements, margins, giveaways, process yields, and mass and energy balances.
  • Demonstrated experience connecting simulations to live data sources (Data Historians, OPC, etc.).
  • Strong understanding of data reconciliation, model tuning, and dealing with gross errors in industrial data is also required.
Work Location and Work Schedule

Work location: Within Saudi Arabia – To be specified in Job offer

Work schedule: Full Time - To be specified in Job offer

Job Posting Duration

Job posting start date: 02/16/2026

Job posting end date: 12/31/2026

Working environment

Our high-performing employees are drawn by the challenging and rewarding professional, technical and industrial opportunities we offer, and are remunerated accordingly.

At Aramco, our people work on truly world-scale projects, supported by investment in capital and technology that is second to none. And because, as a global energy company, we are faced with addressing some of the world’s biggest technical, logistical and environmental challenges, we invest heavily in talent development.

We have a proud history of educating and training our workforce over many decades. Employees at all levels are encouraged to improve their sector-specific knowledge and competencies through our workforce development programs – one of the largest in the world.

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