The posting
Job Description Mechanical Engineer
Location: Rayong, Thailand
Department: Maintenance Projects
Reports to: Mechanical Maintenance Manager
Job Purpose
We are seeking a skilled Mechanical Engineer to oversee the engineering, construction, commissioning, and maintenance of mechanical systems for a large-scale greenfield project. The role requires ensuring safety, reliability, and compliance with technical and quality standards, while driving timely project execution through effective vendor coordination and stakeholder management.
Key Responsibilities
- Engineering Design & Technical Expertise (20%) Execute structural, equipment, and piping works. Review and interpret technical specifications, datasheets, and design documents. Supervise fabrication and erection of structural and piping works. Ensure compliance with relevant industry standards (ASME, ASTM, API, etc.).
- Construction Supervision & Management (30%) Monitor daily construction activities and ensure adherence to quality standards. Coordinate with contractors for timely mobilization of resources. Review and track progress to ensure on-time completion. Resolve on-site technical issues promptly. Prepare and review Method Statements and Job Safety Analyses (JSA).
- Vendor & Resource Management (20%) Oversee material delivery and inventory management. Allocate manpower and equipment effectively for smooth execution. Optimize resource utilization to achieve project efficiency.
- Health, Safety & Environment (10%) Implement global EHS standards. Ensure all contractors comply with safety requirements. Promote behavior-based safety and proactive hazard reporting. Conduct safety inductions, toolbox talks, and refresher training. Encourage reporting of near misses and corrective actions.
- Maintenance of Mechanical Systems (10%) Review preventive and predictive maintenance schedules. Monitor plant equipment for continuous improvement. Ensure compliance with shutdown maintenance activities. Analyze non-conformances and implement corrective/preventive actions (CAPA). Maintain equipment history and ensure smooth operations.
- Documentation & Reporting (10%) Maintain accurate daily progress reports and issue resolutions. Compile QA/QC and safety reports. Ensure documentation of design changes, permits, trainings, audits, and statutory compliance. Keep complete records of engineering and as-built documentation.
Key Challenges
- Managing structural, equipment, and piping construction under tight timelines.
- Coordinating multi-vendor interfaces and resolving technical issues efficiently.
- Ensuring high safety and quality standards across all project stages.
Qualifications & Skills
- Education: B.E./B.Tech in Mechanical Engineering.
- Experience: 8-12 years in construction management or manufacturing plants, with at least 2-3 years in greenfield or large-scale industrial projects.
- Technical Expertise: Knowledge of ASME, ASTM, API, IBR, IS standards. Strong understanding of quality standards and NDT certification. Proficiency in SAP and MS Office (especially Excel).
- Behavioral Skills: Excellent communication, interpersonal, problem-solving, and analytical abilities.
- Other Requirements: Open to travel and site-based work during project stages. Strong presentation and data analysis skills.



