Jonathan Halog
Fabricator/Mechanic
Davao City, Province Of Davao Del Sur,DAS
Summary
Experienced fitter/fabricator with strong mechanical aptitude, fault finding, and fabrication skills. Skilled in precision measuring tools, hand and power tools, and heavy machinery. Focused on safe, accurate repairs and high-quality workmanship.
Overview
4
4
Certifications
14
14
years of professional experience
Work History
FITTER/FABRICATOR
OSM-THOME OFFSHORE
10.2025 - Current
- Interpreted engineering drawings to fit structural and piping components accurately.
- Measured, marked, and prepared materials using hand tools and power tools.
- Assisted with alignment, assembly, and installation of shipboard fittings.
- Checked dimensions and tolerances to support precise fabrication work.
- Operated hoists, cranes and other heavy machinery to transport materials and parts.
- Carried out preventative maintenance, keeping tools and machinery functional.
- Troubleshot and resolved mechanical issues that occurred during assembly.
- Ensured operational excellence, conducting regular maintenance on fabrication equipment.
- Contributed to safer a safer working a a safer working environment, immediately reporting any safety concerns to management.
- Supported new team members, sharing knowledge and skills to improve overall team performance in metal fabrication.
- Performed routine maintenance on fabrication equipment to ensure optimal performance levels during high-demand periods.
- Adjusted machine settings and tooling to get accurate cuts and shapes for each job.
- Assembled and welded components to create metal structures.
- Cut bent, and formed sheet metal and other materials to create metal works.
- Collaborated with team members on complex projects, ensuring timely completion and high-quality workmanship.
ENGINE FITTER
JEBSEN-PTC
06.2023 - 09.2025
- Assembled mechanical components using hand tools, power tools, and technical drawings.
- Installed fittings and equipment to support safe, accurate production operations.
- Inspected finished assemblies for alignment, tolerances, and compliance with specifications.
- Troubleshot mechanical issues and completed corrective adjustments to restore functionality.
- Operated welding equipment to assemble and repair metal structures and elements.
- Improved production efficiency by maintaining and repairing hydraulic systems, preventing downtime.
- Reduced machinery breakdowns with proactive identification and resolution of potential issues.
- Played key role in project completion by collaborating with engineers and other technicians on complex machinery setups.
- Elevated machinery functionality by retrofitting older equipment with new, more efficient parts.
- Troubleshot complex mechanical issues, developing effective solutions that minimized disruptions to project timelines.
- Fabricated pipe spools for butt weld, socket weld and threaded systems utilizing proper fit up techniques such as root openings on butt weld fittings and set back on socket weld fittings.
- Fabricated, assembled, installed and maintained piping systems.
- Collaborated with team members to complete tasks on schedule, maintaining high standards of workmanship.
ENGINE/DECK FITTER
Pacific Ocean Manning Inc. V. Ships
09.2019 - 03.2023
- Inspected shipboard machinery, piping, and structural components to identify wear and maintenance needs.
- Repaired valves, pumps, and fittings using hand tools, power tools, and fabrication equipment.
- Performed preventive maintenance on engine room systems to support safe vessel operation.
- Aligned and installed mechanical components according to marine specifications and technical drawings.
- Troubleshot equipment faults and restored functionality during routine and urgent repair tasks.
- Coordinated with engine crew to prioritize work and minimize downtime during port operations.
- Welded and fabricated replacement parts for damaged fixtures, supports, and piping assemblies.
- Maintained compliance with safety procedures, permit requirements, and housekeeping standards aboard the vessel.
- Followed safe work practices, which included fall protection and personal protective equipment.
- Increased workplace safety by adhering to strict guidelines and protocols during daily operations.
SHORE BASED FITTER/SCUBA DIVER
LONDON SHIPS MANAGEMENT LTD,
04.2016 - 08.2019
- Checked all personal diving equipment to identify and correct functional concerns prior to scheduled dives.
- Discussed equipment failures and medical problems arising during dives.
- Operated welding equipment to assemble and repair metal structures and elements.
- Fabricated, assembled, installed and maintained piping systems.
- Followed safe work practices, which included fall protection and personal protective equipment.
- Increased workplace safety by adhering to strict guidelines and protocols during daily operations.
- Collaborated with team members to complete tasks on schedule, maintaining high standards of workmanship.
- Remained calm and focused, even during stressful or intense diving situations.
- Handled underwater inspections and welding repair work.
- Followed depth limits, decompression protocols, and emergency procedures throughout dive work
SCUBA DIVER /WELDER MECHANIC
HYDROMAX COMMERCIAL DIVING AND SALVAGE CORP.
01.2013 - 03.2016
- Executed commercial dives for underwater inspection, salvage, and recovery operations.
- Inspected hulls, pilings, pipelines, and submerged structures for damage and corrosion.
- Operated hydraulic tools, lifting gear, and underwater cutting equipment during salvage tasks.
- Maintained dive logs, safety checks, and equipment readiness before each operation.
- Executed underwater welding and underwater cutting
- Remained calm and focused, even during stressful or intense diving situations.
- Discussed equipment failures and medical problems arising during dives.
- Consistently met or exceeded company performance metrics through diligent work ethic and attention to detail in all repair tasks.
- Collaborated with team members to complete large-scale projects, ensuring timely completion and high-quality workmanship.
- Ordered repair parts quickly to prevent delays in projects and repair work.
- Enhanced vehicle longevity through meticulous attention to preventive maintenance tasks such as fluid checks, belt replacements, and battery testing.
- Repaired engine and transmission components to rebuild engine and enhance vitality.
- Maximized engine efficiency with routine tune-ups, oil changes, and filter replacements.
- Analyzed and located malfunctions in brakes, motors, switches, and control systems.
- Inspected and tested vehicles and completed preventive maintenance such as engine tune-ups, oil changes, tire rotations, wheel balancing, and filter replacement.
- Disassembled defective parts to make proper repairs.
- Completed full vehicle inspections to check for leaks, damage, or other issues of concern.
- Performed preventative maintenance oil changes and brake jobs to preserve performance and reliability of vehicles.
- Fabricated replacement parts and welded components for damaged marine equipment.
- Repaired hydraulic hoses, fittings, and cylinders to restore operational readiness.
Education
TECHNICAL VOCATIONAL - AUTOMOTIVE TECHNOLOGY
UNIVERSITY OF MINDANAO
Davao City, Province Of Davao Del Sur, Philippines 04.2001 -
TECHNICAL VOCATIONAL - SMAW NC II
JOJIE ILAGAN WELDING ACADEMY
Davao City, Province Of Davao Del Sur, Philippines 04.2001 -
Skills
Fabrication
Surface and underwater welding
Cutting and grinding
Lathed Machining
Lathed Machiningg
Surface and underwater welding
Hydraulic systems maintenance
Operate heavy machinery
Mechanical aptitude
Operate heavy machinery
Forklift Operation
Underwater Welding
Certification
SMAW NC II
Timeline
FITTER/FABRICATOR
OSM-THOME OFFSHORE
10.2025 - Current
ENGINE FITTER
JEBSEN-PTC
06.2023 - 09.2025
ENGINE/DECK FITTER
Pacific Ocean Manning Inc. V. Ships
09.2019 - 03.2023
SHORE BASED FITTER/SCUBA DIVER
LONDON SHIPS MANAGEMENT LTD,
04.2016 - 08.2019
SCUBA DIVER /WELDER MECHANIC
HYDROMAX COMMERCIAL DIVING AND SALVAGE CORP.
01.2013 - 03.2016
TECHNICAL VOCATIONAL - AUTOMOTIVE TECHNOLOGY
UNIVERSITY OF MINDANAO
04.2001 -
TECHNICAL VOCATIONAL - SMAW NC II
JOJIE ILAGAN WELDING ACADEMY
04.2001 -