• Review and provide technical comments on FEED documents prepared by engineering consultants, ensuring compliance with project requirements, standards, operability and maintainability. • Support EPC tendering by evaluating bidders' technical proposals, design philosophy, material take-off/Bill of Materials, Bill of Quantities, construction methodology, organization chart, manpower plan, schedule, and technical deviations. • Participate in technical clarification meetings and provide recommendation for bidder selection. • During EPC execution, review and approve engineering deliverables within delegated authority. • Monitor engineering progress, technical issues, procurement status (where relevant), and construction readiness. • Act as the technical focal point between contractors involving in project and resolve interface issues. • Coordinate with other groups to ensure integrated design. • Work at site as supervisor and/or filed engineer if project requires. Support FAT/SAT, commissioning and handover as required. • Prepare technical reports and participate in project meetings. [Requirements] • Bachelor's degree in Mechanical Engineering or related discipline. • Minimum 10 years of experience in engineering, EPC or owner's engineering for heavy industry (steel, mining, power, cement, petrochemical or similar). • Experience with FEED, EPC bidding and EPC execution. • Good understanding of international and Vietnamese codes and standards. • Able to review engineering documents independently and communicate effectively in English. Able communication in Chinese is an advantage. • Experience/knowledge in piping system and equipment (rotating/static) in steel, cement or similar industrial plant. • Knowledge of welding, fabrication, installation and commissioning