Mahfudz Aziz

- Performed electrical and mechanical maintenance for 32 overhead bridge cranes, 12 electric hoists, and various lifting equipment at NCOC EW Karabatan Onshore Site. - Conducted troubleshooting, root cause analysis, and installation of crane refurbishments, upgrades, and replacement components for multiple crane brands including Ozarar, Konecranes, BVS, SWF, STAHL, and A. Henefeld. - Supervised and mentored multinational maintenance personnel while ensuring safe crane lifting, rigging, and slinging operations onsite. - Managed maintenance activities using SAP, including Z1 notifications, preventive maintenance findings, frozen plan coordination, task execution, and client reporting. - Interpreted electrical, hydraulic, and pneumatic drawings, monitored crane load indicating systems, and prepared method statements for maintenance and upgrade activities.

- Managed electrical and mechanical maintenance for heavy-lift crane units, including Manitowoc Crawler Cranes, Liebherr Crawler Crane LR1250, and Seatrax Pedestal Cranes. - Diagnosed and repaired malfunctions on electrical hoist systems for Chester Hoist Electric ELM155-5 and ELM1650 series systematically. - Conducted comprehensive inspections on high-access machinery, such as Genie manlifts and Gaffey 60T overhead cranes, ensuring offshore safety compliance. - Executed Job Safety Analysis (JSA) protocols for all critical heavy lifting operations to minimize field operational risks. - Interpreted international blueprints and electrical circuit schematic diagrams to accelerate on-site technical troubleshooting. - Coordinated with Chevron (CABGOC) stakeholders regarding asset mechanical performance logging to minimize operational downtime.

- Led technical supervision and circuit troubleshooting for advanced heavy mobile cranes: Manitowoc Grove 5170, GMK5100, GMK4075, GMK4080-1, GRT1000, and Liebherr LTM1160-5.1. - Maintained full accountability for the electrical reliability of pedestal and overhead cranes on the NKOSSA NKP Offshore FPSO/Platform for Total Congo. - Supervised field mechanics in executing scheduled and corrective maintenance programs across Clark forklifts and Haulotte manlifts. - Enforced strict Hazardous Area Classifications (IEC 60079) regulations on offshore generators and platform engine rooms. - Validated Permit to Work (PTW) protocols as an authorized holder of HSE Modules 7, 8, and 30 within TotalEnergies facilities. - Minimized electrical circuit failures in offshore heavy machinery control panels through structured preventive maintenance procedures.

- Executed preventive maintenance, detailed inspections, and real-time troubleshooting for offshore units including Favelle Favco, Sparrows Crane, American Aero, and Nautilus. - Calibrated Safe Load Indicator (SLI) systems regularly, specifically focusing on RCI Robway, MIPEG, and LSI load indicator models. - Managed end-to-end mechanical and electrical maintenance for all onshore overhead crane fleets situated within shore-base facilities. - Acted as an authorized Permit Holder under the strict health, safety, and environmental regulations of Brunei Shell Petroleum (BSP). - Performed periodic operational load testing to ensure the structural and sensor accuracy of lifting limit mechanisms. - Developed technical documentation for periodic inspection outcomes to comply with internal lifting equipment safety audits.

- Conducted scheduled inspections, mechanical lubrication, and electrical repairs on offshore pedestal cranes: Favelle Favco, Sparrows EC65 Removable Crane, EC65-2, ROTO, Hercules, Liebherr, and Nautilus. - Configured and maintained safety computer monitoring networks, including RCI Robway, MIPEG, and LSI load indicators to mitigate overload risks. - Maintained the electrical distribution networks of Kone Cranes and MHE Demag overhead systems across onshore warehouses and central workshops. - Served as a certified technician for the operation, structural inspection, and maintenance of marine personnel transfer capsules (FROG 3 & FROG 6). - Applied daily Job Hazard Analysis (JHA) to ensure 100% compliance with corporate safety and occupational health standards. - Identified and resolved electrical circuit faults in three-phase induction motors driving primary hoisting crane systems.

- Managed preventive maintenance schedules targeting electrical and external mechanical subsystems (excluding prime movers) on offshore platform cranes. - Handled circuit inspections and control instrument evaluations for Favelle Favco, Manitech, and Nautilus crane models. - Analyzed electro-hydraulic diagrams to trace electrical power delivery faults affecting motion control solenoid valves. - Verified that all personal protective equipment and emergency electrical components inside operator cabins operated according to safety checklists. - Reduced unplanned breakdowns of platform primary lifting equipment through early detection of contactor circuit component wear. - Supervised critical spare parts inventories for crane electrical control circuits to guarantee immediate component availability.

- Conducted automotive electrical (autoelectric) maintenance for heavy-duty haul trucks: Hino FM260, Isuzu Fvz Giga, and Strada Triton utility vehicles. - Provided engineering support for electrical warranty claims on Volvo EC210, EC330, EC480, and EC700 excavators, loaders, and A40F articulated dump trucks. - Repaired industrial alternator installations on portable Mitsubishi generator sets and Ingersoll Rand Doosan mobile light towers. - Diagnosed electrical starter motor faults and 24V DC battery charging system inefficiencies across heavy mining assets. - Replaced damaged or shorted wiring harnesses exposed to extreme thermal conditions within engine compartments. - Applied Lock-Out Tag-Out (LOTO) electrical isolation standards prior to dismantling high-current automotive electrical assets.

- Executed routine inspections, scheduled servicing, and automotive electrical troubleshooting for heavy machinery in open-pit coal mining operations. - Managed periodic electrical control circuit maintenance for ultra-class excavators (Komatsu PC200, PC400, PC800, PC1250, PC2000) and bulldozers (D85ss, D155, D375). - Evaluated digital sensor arrays and electronic control module parameters on Caterpillar 773D dump trucks and 740 articulated trucks. - Maintained ancillary mining support asset electrical systems, including Ford Ranger light vehicles, Yanmar generators, and Tadano/XCMG mobile cranes. - Calibrated heavy equipment cockpit air conditioning systems periodically to optimize operator occupational ergonomics. - Documented daily electrical spare parts utilization trends within logistics systems to regulate machine maintenance lifecycles.

- Formed an independent enterprise developing educational microcontroller modules and managed product marketing strategies targeting technical institutes. - Engineered Printed Circuit Board (PCB) layout architectures utilizing Atmel ATMEGA microcontroller configurations.

- Assisted senior vocational instructors in training industrial personnel on Festo PLC automation systems and assembler programming languages. - Demonstrated the utilization of Raisonance IDE and BASCOM AVR software to configure ATMEGA 8535, 89S51/52, and ATMEGA32 chips.

Petroleum Engineering at Universitas Proklamasi 45, (University of Petroleum Yogyakarta).