
Valentine Mambang Ak Henry
About Candidate
Experienced mechanical and production technician with over 14 years of hands-on experience in preventive and corrective maintenance, process operations and equipment inspection across oil & gas and manufacturing sectors. Adept at troubleshooting and implementing safety protocols. Committed to operational excellence and continuous improvement.
Education
Diploma In Mechanical Engineering
Work & Experience
1. Performed scheduled preventive, corrective and frontline maintenance on mechanical systems and verified optimal operation by inspecting components, lubricating moving parts, and documenting finding for future reference. 2. Replaced worn or defective parts proactively, helping reduce equipment breakdown incidents by improving reliability. 3. Maintained a high standard of housekeeping and area safety, contributing to audit-ready work environments. 4. Inspected and documented relief valves, pipelines, and vessel validation dates in accordance with offshore maintenance protocols. 5. Assigned to Petronas Carigali CMPE Roving Cluster 1 team, supporting offshore asset integrity and mechanical reliability.
1. Conducted preventive, corrective and frontline maintenance on mechanical system including pump, valves and compressors, reducing unplanned downtime. 2. Performed mechanical seal replacements, lube oil changes and belt installations to maintain optimal equipment performance. 3. Utilized SAP ( PMMS ) to document and track maintenance activities and ensure compliance with company procedures. 4. Collaborated with CMPE Roving Cluster 1 team under Petronas Carigali to maintain operational integrity across assigned facilities.
1. Planned and scheduled daily production operations and manpower resources to meet production output goals. 2. Operated and monitored process equipment including reactor, distillations units, pumps and compressors. 3. Conducted routine maintenance and troubleshooting of production equipment to prevent downtime. 4. Troubleshoot process issues and implement corrective actions to minimize downtime. 5. Control process parameters ( temperature, flow, pressure, pH ) via DCS. 6. Coordinated shutdown and startup activities, including equipment isolation, purging, and process parameter stabilization.
1. Operated and maintained CNC and DNC machines for precision part fabrication. 2. Performed scheduled maintenance and repairs to support uninterrupted machine operations. 3. Fabricated busbars and customized fixtures based on engineering specifications and production needs. 4. Collaborated with cross-functional teams to streamline production processes and improve workflow efficiency. 5. Documented production metrics to ensure alignment with manufacturing deadlines and quality targets