Mahathir Sahabudin

• USD 500M Renewable Refinery Project
• Key Responsibilities
• Coordinating engineering, procurement, construction and commissioning interfaces across ISBL and OSBL process facilities
• Managing technical interfaces between engineering design teams, EPC contractors and operations representatives
• Supporting interface coordination between process licensor's, construction contractors and commissioning teams
• Monitoring construction readiness for system completion and start-up integration
• Tracking interface issues and resolving technical conflicts between structural, mechanical and utilities systems
• Facilitating SIMOPS coordination within live operating refinery environment
• Key Achievements
• Successfully supported project completion and handover to operations within schedule targets
• Achieved more than 10 million safe manhours under SIMOPS controlled construction environment
• Closed structural and mechanical punch items prior to system turnover to operations
• (Project Owner)
• Implemented safety protocols for reduced workplace injuries, conducting regular site inspections and safety meetings.
• Verified completed projects met approved time, quality, and cost estimates.

• USD 350M USD 350M Offshore Development |15,000 MT Topside | 11,200 MT Jacket
• Key Responsibilities
• Coordinated engineering, fabrication yard and offshore installation interfaces for topside structural integration
• Managed technical coordination between structural, piping, mechanical and marine installation teams
• Facilitated resolution of fabrication technical queries and design changes with engineering teams
• Monitored fabrication progress and ensured alignment with offshore installation schedules
• Supported module integration, load-out preparation and sail-away readiness
• Key Achievements
• Delivered major offshore topside fabrication within yard schedule
• Achieved 10.5 million LTI-free manhours
• Completed topside integration and load-out with no major structural NCRs
• MAIN EPCIC Contractor
• Identified and resolved construction issues promptly to prevent delays.
• Monitored daily progress on-site to maintain a clear understanding of challenges faced by the team members or any required adjustments in plans or schedules.
• Supervised field crews to maximize quality and work efficiency.
• Supervised material usage and contractor man-hours to keep projects in line with budgetary restrictions.

• USD 350M USD 350M Offshore Development |15,000 MT Topside | 11,200 MT Jacket
• Key Responsibilities
• Coordinated engineering, fabrication yard and offshore installation interfaces for topside structural integration
• Managed technical coordination between structural, piping, mechanical and marine installation teams
• Facilitated resolution of fabrication technical queries and design changes with engineering teams
• Monitored fabrication progress and ensured alignment with offshore installation schedules
• Supported module integration, load-out preparation and sail-away readiness
• Key Achievements
• Delivered major offshore topside fabrication within yard schedule
• Achieved 10.5 million LTI-free manhours
• Completed topside integration and load-out with no major structural NCRs
• MAIN EPCIC Contractor
• Monitored subcontractor operations and applied effective time, resource, and money management strategies to delivery under-budget project completion.
• Communicated daily with vendors to keep project fully operational.
• Supervised field crews to maximize quality and work efficiency.
• Supervised material usage and contractor man-hours to keep projects in line with budgetary restrictions.

• Scale Operating Organization Environment
• Key Responsibilities
• Managed brownfield construction integration within operating refinery and offshore assets
• Coordinated contractors performing structural and mechanical modifications under live plant SIMOPS
• Ensured alignment between construction execution, operational constraints and permit-to-work systems
• Facilitated coordination between engineering teams, contractors and operations during modifications
• Supported system completion and readiness for commissioning activities
• Key Achievements
• Delivered multiple brownfield structural modification campaigns without major operational disruption
• Maintained strict PTW and MOC governance in high H2S process facilities
• Achieved strong HSSE performance across multiple contractor work fronts
• (Asset Owner Organization) – Client Authority
• Enhanced project efficiency by streamlining communication between team members and stakeholders.
• Oversaw contract negotiations with vendors, securing favorable terms that benefited the project''s bottom line.

• USD 11Billion Refinery & Petrochemical Development
• Key Responsibilities
• Coordinated engineering-construction interfaces between EPC contractors and client project management team
• Monitored technical drawings, design revisions and engineering documentation across contractors
• Supported integration between utilities, offsite facilities and interconnecting refinery systems
• Participated in multi-contractor interface coordination meetings and technical reviews
• Assisted in resolving design conflicts and construction interface constraints
• Key Achievements
• Supported execution of one of the largest refinery developments in Southeast Asia
• Contributed to coordination of multiple EPC contractors across integrated project packages
• (Seconded to PETRONAS RAPID Project)
• Led weekly progress meetings with key stakeholders to review accomplishments, address concerns, and set priorities for upcoming tasks.
• Contributed to business development efforts by assisting in proposal writing and client presentations.

• Projects USD 50M–1B | Workforce up to 8,000
• Key Responsibilities
• Managed offshore topside (CPP), Jacket, WHP, LQ & Helideck fabrication, installation preparation and offshore hook-up coordination
• Fabrication of SUBSEA structures (PLET, PLEM, MWA)
• Coordinated engineering, fabrication and marine installation interfaces for offshore structures
• Supervised welding, NDT coordination and structural erection activities
• Coordinated load-out, sail-away and offshore installation readiness
• Key Achievements
• Delivered multiple offshore platform fabrication campaigns
• Achieved strong structural welding quality performance with minimal rework
• EPC Contractor / PMC CSR
• Improved project efficiency by streamlining communication between architects, engineers, and subcontractors.
• Completed projects within time constraints by effectively managing schedules and allocating resources.
• Identified and resolved construction issues promptly to prevent delays.
• Monitored daily progress on-site to maintain a clear understanding of challenges faced by the team members or any required adjustments in plans or schedules.

- Monitoring and resolved issues related to Yard fabrication (onshore and offshore) fabricate, inspections, authority firm, technical, logistics - work barges, work boats, offshore permit and etc.), machinery and tools (Offshore Inspection Certified), site team and registration people on board (Offshore Training Requirement - BOSEIT Course, Offshore Passport & etc.). Defined and compiled project specification and scope of work as a reference for the section with regards to erection sequence, heavy lift (Lifting Plan - Onshore & Offshore).

• Provided technical expertise throughout all phases of the project, ensuring accurate execution of designs and specifications.
• Maintained records for each project and engineering discipline.

Responsibilities:
- Planning, organize, coordinate and supervise the works according to the project schedule and requirement throughout the entire construction and Hook-Up arrangement period, finalizing requirements and specification in consultation with other disciplines, conversant with offshore installation and commissioning activities of maintenance, construction, hook-up, structure, pipeline, umbilical and survey activities and liaise with others sub-contractor for any area of concern or priority issue to be carried out and update daily and weekly progress report.

• Reduced safety incidents by implementing comprehensive safety trainings and regular site inspections.
• Determined costs of labor and materials for each project.

Responsibilities:
- To coordinate for M&E Works

• Kept projects on schedule by managing deadlines and adjusting workflows.
• Developed comprehensive project plans, outlining scopes, timelines, deliverables, and milestones.