Senior Process Engineer - Digitalization & Optimization Lead

pt essa industries indonesia tbk.; Indonesia; On-site; IDR 420,000,000 - 680,000,000; Full time

Job summary

PT ESSA Industries Indonesia Tbk is seeking a Senior Process Engineer to support engineering activities across phases, focusing on process simulation, digitalization, optimization, and cross-functional collaboration to ensure the safe, reliable, and compliant design and operation of process units.

You will work with licensors, EPC contractors, and internal engineering, operations, and safety teams to deliver technical excellence, coordinating digital P&ID initiatives and contributing to plant

Qualifications

• Bachelor’s degree in Chemical Engineering required.
• Minimum 8 years of experience in process engineering in oil & gas, petrochemical or chemical industries.
• Proficiency in process simulation software such as Aspen HYSYS or ProII or similar.
• Hands-on experience in developing and interpreting PFDs, P&IDs and process calculations.
• Familiarity with BED, material and energy balances and equipment sizing.
• Experience supporting digital engineering initiatives (e.g., P&ID digitalization).
• Knowledge of health, safety and environmental standards including SMK3 and ISO 14001.
• Strong communication, analytical thinking and teamwork skills.

Responsibilities

• Develop and review steady-state and dynamic process simulation models for ISBL and OSBL to support design validation, troubleshooting and performance improvement.
• Prepare and review basic engineering deliverables including process calculations, material and energy balances, PFDs, P&IDs, data sheets and major equipment sizing.
• Coordinate with licensors and EPC contractors to validate design basis, deliverables, equipment selection and operability.
• Analyze plant and simulation data to identify bottlenecks and opportunities to improve throughput, energy efficiency, reliability and operating costs.
• Support digitalization of P&IDs to improve data accuracy, accessibility and collaboration across engineering disciplines.
• Collaborate with engineering, operations, construction and HSE teams, including participation in HAZOP, SIL and other process safety studies.
• Support pre-commissioning and commissioning activities for process units, offsites and utility facilities.
• Ensure compliance with process safety, occupational health, environmental and regulatory requirements, and support corrective actions for non-conformances.
• Provide technical input for feasibility studies, project proposals and potential business development opportunities.

Education

Bachelor’s degree in Chemical Engineering

Tools

Aspen HYSYS

ProII

Job description

PT ESSA Industries Indonesia Tbk is seeking a Senior Process Engineer to support engineering activities across phases, focusing on process simulation, digitalization, optimization, and cross-functional collaboration to ensure the safe, reliable, and compliant design and operation of process units.

You will work with licensors, EPC contractors, and internal engineering, operations, and safety teams to deliver technical excellence, coordinating digital P&ID initiatives and contributing to plant