Digital Twin & Refinery Process Optimization Engineer

Aramco; Chicago (IL); On-site; USD 180,000 - 240,000; Full time

Job summary

Aramco seeks an experienced Process Simulation Twin (PST) and Optimization Engineer to join the Reliability Solutions Department within the Global Manufacturing Excellence Center. You will deploy online process simulations, optimize operations, and bridge data with thermodynamic models across multiple facilities.

The role requires 15–20+ years in process simulation/online modeling, with ROMeo experience preferred.

Qualifications

• Bachelor's degree in Chemical Engineering is required.
• 15+ years in process simulations, online modeling, or real-time optimization (20 years preferred).
• Experience connecting simulations to live data sources (Data Historians, OPC, etc.).
• Strong understanding of refinery processes, mass and energy balances.

Responsibilities

• Lead development and sustainment of PST that integrate real-time data with rigorous equation-oriented or sequential simulation engines.
• Configure connectivity between plant historians, laboratory information systems, and simulation software.
• Utilize PST to monitor facility health and detect deviations between ideal and actual performance to identify opportunities.
• Develop thermodynamic models and equations representing the behavior of processes to keep PST accurate.
• Perform offline studies using PST to analyze bottlenecks and what-if scenarios.
• Act as technical liaison between data teams and Operations/Process Engineering.
• Lead process optimization sessions to de-bottleneck key units (CDU/VDU, Hydrocrackers, Catalytic crackers, Diesel Hydrotreaters, Isomerization).
• Benchmark process optimization KPIs across facilities and develop best practices.
• Provide SME support to Operations, Maintenance, and Engineering teams.

Skills

Process simulation

Online modeling

Real-Time Optimization

Data reconciliation

Education

Bachelor's degree in Chemical Engineering

Tools

ROMeo

OPC

Job description

Aramco seeks an experienced Process Simulation Twin (PST) and Optimization Engineer to join the Reliability Solutions Department within the Global Manufacturing Excellence Center. You will deploy online process simulations, optimize operations, and bridge data with thermodynamic models across multiple facilities.

The role requires 15–20+ years in process simulation/online modeling, with ROMeo experience preferred.