PROCESS ENGINEER

PT Archi Indonesia Tbk; Pinenek; On-site; IDR 100,440,000 - 167,400,000; Full time

Job summary

PT Archi Indonesia Tbk invites an experienced Process Engineer to review design criteria, optimize mineral processing circuits, and support EPC projects at a remote mine site.

The role involves collaboration with consultants and contractors, development of PFDs/PDs, process simulations, commissioning, and a strong emphasis on HSE and continuous improvement. English proficiency preferred; roster-based contract.

Qualifications

• Bachelor’s degree in Chemical Engineering, Metallurgical Engineering, Mineral Processing Engineering, or related field.
• 3–5 years of experience in mineral processing, gold plants, or large mining projects.
• Experience with EPC/EPCM projects and commissioning is preferred.
• Strong process design and optimization knowledge.
• Familiarity with gold processing circuits (crushing to tailings).
• Strong analytical, troubleshooting, and problem-solving skills.
• Strong communication and cross-functional collaboration skills.
• Willing to work on a remote mine site on a roster and on contract basis.
• Good command of English, both written and spoken.

Responsibilities

• Review process design criteria, mass balances, and PFDs.
• Support development and review of P&IDs and equipment specs.
• Coordinate with consultants, EPC contractors, and engineering teams.
• Conduct process simulations and technical evaluations to optimize plant performance.
• Review equipment sizing for crushing, grinding, gravity separation, flotation, leaching, elution, and tailings systems.
• Participate in HAZOP, risk assessments, and design workshops.
• Monitor construction and commissioning activities to ensure design compliance.
• Develop commissioning procedures, operating manuals, and performance tests.

Skills

Process design

Troubleshooting

Cross-functional collaboration

Safety leadership

Analytical skills

Problem-solving

Education

Bachelor’s degree in Chemical/Metallurgical / Mineral Processing Engineering

Job description

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Duties

• Review and validate process design criteria, mass balances, and Process Flow Diagrams (PFDs).
• Support the development and review of P&IDs, equipment specifications, and other engineering deliverables.
• Coordinate with consultants, EPC contractors, and multidisciplinary engineering teams.
• Conduct process simulations and technical evaluations to optimize plant performance and gold recovery.
• Review equipment sizing and selection for crushing, grinding, gravity separation, flotation, leaching, elution, and tailings systems.
• Participate in HAZOP, risk assessments, constructability reviews, and technical design workshops.
• Support procurement activities through technical bid evaluations and vendor clarifications.
• Monitor construction and commissioning activities to ensure compliance with approved process designs.
• Develop commissioning procedures, operating manuals, and process performance testing plans.
• Provide technical troubleshooting and recommendations during plant start-up and ramp-up.
• Promote a strong safety culture and continuous improvement across process engineering activities.
• Perform other assigned duties as needed.

Requirements

• Minimum Bachelor’s Degree (S1) in Chemical Engineering, Metallurgical Engineering, Mineral Processing Engineering, or a related discipline.
• Minimum 3-5 years of relevant experience in mineral processing, gold processing plants, or large-scale mining projects.
• Experience in plant expansion, EPC/EPCM projects, and commissioning activities is preferred.
• Strong knowledge and experience in process design and optimization.
• Familiarity with gold processing circuits, including crushing, grinding, gravity separation, flotation, leaching, elution, and tailings systems.
• Strong analytical, technical troubleshooting, and problem-solving skills.
• Strong communication and cross-functional collaboration skills.
• Demonstrated commitment to HSE, safety leadership, and continuous improvement.
• Willing to work at a remote mine site on a roster arrangement.
• Willing to work on a contract basis.
• Good command of English, both written and spoken, is preferred.
• Awareness of company safety and environmental standards.