Summary
Yao Jin (Jason Yao) is a quality supervisor and inspector with 15+ years of quality surveillance experience across vessel newbuilding, mooring chain, pressure vessels, steel structures, heat exchangers, modules, and mining equipment. He has rich experience supervising installation, welding, and production processes on site, including material traceability, fit-up, welding, NDE, PWHT, dimensional inspection, testing, coating, and final documentation. His specialist scope includes air-cooled heat exchangers, tube-to-tubesheet joints, pressure-retaining welds, mooring chain manufacture, LNG structures, and shipbuilding. He has also served as an owner’s inspector and hull supervisor for bulk carriers and VLOCs, supporting shipyard quality control, outfitting, piping, FATs, tightness testing, and sea trials. He is a certified welding inspector with broad NDT inspection capability.
Education
- Bachelor, Bohai Shipping Professional College, Major: Welding Technology (Time Period: 09/2006-07/2009)
Qualifications and Training
- American Welding Society Certificated Welding Inspector (CWI), Certificate Number: 14082981
- American Welding Society Senior Certificated Welding Inspector (SCWI), Certificate Number: 24060028
- ASNT Level II RT, Time Period: 04/2026-09/2031
- ASNT Level II MT, Time Period: 05/2025-04/2031
- ASNT Level II UT, Time Period: 05/2025-04/2031
- ASNT Level II PT, Time Period: 04/2026-04/2031
Work Experience
Sep 2009 – Present
FREELANCE (Various clients)
- Performed quality surveillance, inspection, and supervision across vessel newbuilding, mooring chain, pressure vessels, steel structures, heat exchangers, modules, and related industrial equipment.
- Performed material, welding, fit-up, dimensional, visual, NDE, testing, coating, documentation, and final-release inspections for shipyards, manufacturers, vendors, and owners.
- Supported ITP implementation, qualification review, traceability, NCR corrective action, quality reporting, FATs, ship trials, and MDR or final-documentation handover.
Projects
OCT 2025 – PRESENT
Client: TR (Spain) & SINOPEC (China)
Hassi Fase 3 UTE TR-SINOPEC
Vendor: Kelvion thermal Solutions (Jiangsu) Co, Ltd.
Product: AIR COOLED HEAT EXCHANGER
Position: Inspector
- Inspected frame tube bundle materials, visual and dimensional condition, lifting lug welds by 100% MT, and side-frame HDG or painting protection.
- Inspected carbon steel plug-type headers, including raw materials, mill test certificates, traceability, cutting, NDE before and after PWHT, PWHT, hardness testing, surface preparation, and coating.
- Inspected base tube and finned tube raw materials, material certificates, and finned tube manufacturing.
- Checked bundle assembly, tube-to-tubesheet fit-up and cleanliness, TTS mock-up testing, full-strength welding, visual examination, NDE, PWHT, hardness testing, plugging, hydrostatic testing, marking, cleaning, and painting.
- Inspected stainless steel plug-type headers, including PMI, MTC review, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
- Inspected pipe headers, including material certificates, traceability, flange-to-TEE and TEE-to-pipe welding, NDE, hardness testing, dimensional checks, drilling holes, surface preparation, and primer painting.
- Inspected steam coil bundle frames and assemblies, including fit-up, cleanliness, welding, hardness testing, dimensional inspection, hydrostatic testing, marking, touch-up, and final painting.
- Inspected louvers, motors, fans, lifting beams, conformity certificates, MRB and IOM documentation, including motor type-test and routine-test reports, fan balancing tests, lifting-beam NDE, and load tests.
- Witnessed trial assembly and factory acceptance testing.
- Performed final inspection, preparation for shipment, and final documentation review.
AUG 2025 – OCT 2025
Client: SBM
Mooring system components replacement SO12820N. SeaRose
Product: Mooring Chain
Position: Inspector
- Performed raw material receiving inspection and witnessed mechanical and chemical tests.
- Monitored bar cutting, bar heating, link bending, link flash welding, link trimming, pre-NDT, and heat treatment.
- Witnessed proof load, mechanical, breaking load, and final NDT testing.
- Performed final visual and dimensional inspection, including chain marking, identification, and trial fit testing.
- Reviewed final documentation.
JUN 2025 – JUL 2025
Client: CSCEC Steel Industries LLC.
DATA CENTER, ABU DHABI
Vendor: Jiangsu Haorong
Product: STEEL STRUCTURE
Position: Inspector
- Inspected raw materials including plates, sections, angles, channels, and pipes.
- Inspected incoming bolts, nuts, washers, welding consumables, paint, and intumescent fireproofing.
- Performed lamination checks on plates 40 mm and above.
- Inspected identification marking, sizing, bending, and drilling during production.
- Performed fit-up, weld visual, ultrasonic, MPI, final dimensional, and final visual inspections.
- Performed painting inspection and released material for dispatch to site.
JAN 2025 – MAY 2025
Client: AMUR GAS CHEMICAL COMPLEX LLC
Amur Gas Chemical Complex (AGCC)
Vendor: Jiangsu Classic Energy Equipment CO., Ltd
Product: CYCLONES
Position: Inspector
- Inspected materials through visual, dimensional, PMI, and material-certificate checks.
- Inspected cutting, marking transfer, appearance, dimensions, fit-up, longitudinal and circumferential seam welding, and shell roundness.
- Performed PMI and ferrite testing of welds and witnessed RT 100% and PT 100% NDE.
- Inspected internal polishing, nozzles and flanges, final assembly, hole marking, groove inspection, welding, NDE, PMI, and roughness.
- Performed final visual and dimensional inspection before hydrostatic testing and witnessed the hydrostatic test.
- Inspected surface preparation, painting, pickling, passivation, coil fabrication, coil assembly, and final inspection.
DEC 2024 – JAN 2025
HIBOB OIL COOLER PROJECT
Vendor: Kelvion thermal Solutions (Jiangsu) Co, Ltd.
Product: AIR COOLED HEAT EXCHANGER
Position: Inspector
- Inspected stainless steel plug-type headers, including raw materials, PMI, MTCs, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
- Inspected pipe headers, including material certificates, traceability, flange-to-TEE and TEE-to-pipe welding, NDE, hardness testing, dimensional checks, drilling holes, surface preparation, and primer painting.
- Inspected base tube and finned tube materials, certificates, and manufacturing.
- Inspected steam coil bundle frames, motors, fans, and lifting beams, including visual, dimensional, conformity, balancing, NDE, load, and documentation checks.
- Witnessed trial assembly and factory acceptance testing.
- Performed final inspection, shipment preparation, and final documentation review.
MAR 2024 – DEC 2024
Client: TORM
DAMINI &DIWATA &EVA@GWYNETH VESSEL
Vendor: NASCO SHIPYARD
Position: Structure and welding Supervisor
- Inspected EGCU block fabrication according to the ITP.
- Inspected vessel erection onboard.
- Inspected draft, load line, freeboard, hull name, in-water boundary marks, and principal vessel dimensions.
- Inspected tank completion, tank tightness testing, and final inspection before tank close-up.
- Inspected hull outfitting items including windlass, winch, watertight windows, watertight doors, watertight hatch covers, ventilation covers, deck hose handling cranes, provision cranes, lifeboats, rescue boats, and accommodation ladders.
- Witnessed chalk tests, hose tests, and function tests.
JUL 2023 – MAR 2024
Client: NIPI GAS
ALNG2 Project
Vendor: Tianjin BOMESC Yard
Position: Welding and Structure Inspector
- Supervised the fabrication and construction progress of ALNG2 at BOMESC yard and ensured inspection activities followed ITP steps and applicable acceptance criteria.
- Explained project specification, code, and standard requirements to yard QC and construction personnel.
- Witnessed welding PQR, welder qualification, material, and welding specimen mechanical tests and verified the results.
- Surveilled fabrication and construction, reduced NCR risk, issued corrective-action response forms, and followed up corrective actions.
- Verified structural integrity against AFC drawings and requested TQ for non-compliance; verified TQ and SIS implementation.
- Witnessed material receiving inspections and verified delivery documents, mill certificates, material identification, appearance, and acceptance criteria.
- Performed fit-up spot checks, welding-parameter audits, WPS application checks, and welding information matrix reviews.
- Performed weld visual inspection and witnessed torque-wrench calibration, bolt tightening, dimensional measurement, and total-station surveys.
- Monitored welding consumable storage, baking, and issue procedures.
- Reviewed NDE rejection and fabrication rework rates and provided quality-improvement guidance.
- Reported inspection results through Easy Plant and reviewed structure QCFs before uploading.
- Monitored NDE operator performance, equipment calibration records, consumables, radiograph interpretation, and NDE QCFs.
APR 2023 – JUL 2023
Client: CCPMT
KINGFISHER OIL FIELD FACILITIES PROJECT
Product: LPG SYSTEM
Position: Inspector
- Inspected incoming plates, forgings, flanges, fittings, pipes, stainless steel components, and welding materials.
- Reviewed welder, NDT operator, PQR, and WPS qualifications.
- Inspected material and welding-consumable storage, cutting, forming, marking, traceability, head dimensions, fit-up, alignment, and nozzle location marking.
- Inspected shell, head, nozzle, butt, and related welds and witnessed RT, MT, and PT.
- Witnessed hydrostatic testing and inspected dimensions before testing.
- Inspected blasting, surface preparation, painting, cleanliness, gasket seating surfaces, nameplates, tagging, flange protection, and threaded openings.
- Reviewed documentation, packing, preservation, release notes, and final books.
JAN 2023 – APR 2023
Client: An Feng Shipping
2x76000 DWT Bulk Carrier
Product: 2x76000 DWT Bulk Carrier
Position: Hull supervisor
Location: Jiangsu Haitong Offshore Engineering Equipment Co., Ltd
- Reviewed drawings and technical documents and communicated with the shipyard design department.
- Attended kick-off and technical disclosure meetings.
- Supervised and managed new shipbuilding projects on behalf of the ship owners.
- Coordinated with the shipyard, reviewed drawings, monitored production, and reported work information to the company.
- Arranged project-team activities and supported decision-making on production issues.
- Worked to achieve project objectives and owner satisfaction.
- Prepared the completion report.
OCT 2022 – JAN 2023
Client: SBM
YELLOWTAIL - ONE GUYANA FPSO
Product: Mooring Chain
Position: Inspector
- Performed raw material receiving inspection and witnessed mechanical and chemical tests.
- Monitored bar cutting, bar heating, link bending, link flash welding, link trimming, pre-NDT, and heat treatment.
- Witnessed proof load, mechanical, breaking load, and final NDT testing.
- Performed final visual and dimensional inspection, including chain marking, identification, and trial fit testing.
- Reviewed final documentation.
DEC 2021 – SEP 2022
Client: Chemours
Trail Ridge South Project
Vendor: Jiangsu Libert INC
Product: Chemical Modules
Standards: ASME IX&V& VIII AWS D1.1, SSPC Painting inspection
Position: Structure Inspector
- Reviewed MTRs, WPS/PQRs, NDE personnel qualifications, equipment calibration certificates, and other documentation.
- Inspected steel plates, shapes, angle steel, channel steel, and SDSS pipe.
- Inspected fit-up and welding preparation, groove angles, root faces, joint openings, misalignment, preheating, inter-pass temperature, welding parameters, and heat straightening.
- Performed visual and dimensional inspection of columns, frames, girders, beams, weldments, and assembled steel modules.
- Witnessed UT, MT, PT, RT film review, and hydrostatic testing of assembled pipe.
- Inspected hot-dip galvanizing, including zinc certificates, zinc bath analysis, coating thickness, adhesion, and appearance.
- Inspected painting fabrication, cable terminations, tubing fabrication, punch close-out, FAT, and FOB release.
- Performed final inspection, completeness checks, and final documentation review.
JUN 2021 – NOV 2021
Client: Killick Group
Woodside SANGOMAR
Product: Mooring chain
Position: Inspector
Location: FMAC
- Performed incoming raw material inspection.
- Monitored pre-production chain fabrication and testing.
- Witnessed bar cutting, link bending, link flash butt welding, link trimming, preliminary NDT, heat treatment, and surface hardness testing.
- Witnessed proof load testing, dimensional control, breaking load testing, final NDT, visual inspection, and mechanical testing.
- Witnessed chain marking, identification, painting, color coding, and trial fitting according to the FAT procedure.
- Performed final inspection and packing checks and reviewed final documents.
JUL 2020 – JUN 2021
Client: CDBL
16x63500DWT Bulk Carrier
Product: 16x63500DWT Bulk Carrier
Position: Hull supervisor
Location: New Dayang Shipyard
- Approved production drawings and verified WPS, PQR, and ITPs.
- Reviewed qualifications of shipyard welders, NDT operators, and construction personnel.
- Performed daily inspections from fit-up through block final inspection, including full-penetration joints, back gouging, and CM points.
- Monitored block quality and issued inspection comments with photographs for corrective action.
- Examined and approved structural modifications on behalf of the owners.
- Participated in weekly and monthly quality meetings with the yard and classification society.
- Attended FATs for provision cranes, windlasses, mooring winches, propellers, lifeboats, and rescue boats.
- Participated in sea trials and witnessed anchor windlass, sound and vibration, lifeboat, rescue boat, and safety-equipment function tests.
FEB 2019 – JUL 2020
Shell Penguins Project
Vendor: Morimatsu (Jiangsu) Heavy Industry Co., Ltd. & Wuxi Chemical Equipment Co., Ltd. & Neway Valve (Suzhou) Co., Ltd.
Product: Pressure vessel, Heat exchanger, Valve
Position: Inspection Engineer
- Attended the pre-inspection meeting and performed material inspection.
- Witnessed welder and welding procedure qualifications.
- Witnessed tube-to-tubesheet joint welding mock-up testing, fit-up, welding, NDE, PMI, ferrite testing, and laboratory tests.
- Witnessed FAT, hydrostatic, leak, and fugitive emission tests.
- Inspected sand blasting, painting, packing, and documentation.
- Reviewed MDBs and issued IRNs.
MAY 2018 – FEB 2020
Client: COSCO Shipping
6x400000DWT VLOC
Product: 6x400000DWT VLOC
Position: Hull supervisor
Location: COSCO(Yangzhou) Shipyard
- Acted as owner’s inspector for hull, outfitting, and pipe welding inspection and reviewed NDE reports.
- Performed pipe and tank tightness, vacuum, tank integrity, and outfitting integrity inspections.
- Witnessed hydraulic tests for piping and leakage tests for systems.
- Attended FATs for steel castings, stern tubes, anchor chains, rudder blades, propellers, hatch covers, FFL, and other equipment.
- Reviewed ITPs, WPSs, and welder and welding-operator certificates.
- Prepared weekly quality and progress reports for structure welding and outfitting inspection.
MAR 2018 – MAY 2018
Client: APCO-JORDAN
2 × 235MW ATTARAT OIL SHALE POWER PLANT
Vendor: Shanghai Baosteel /Zhangjiagang Sunco/Green Leaves
Product: Boiler/pressure vessel
Position: Inspector
- Performed material verification, including surface condition, outside diameter, wall thickness, marking, and MTR review.
- Inspected material identification transfer marking and fit-up of butt joints, tube splicing joints, pipes, nozzles, heaters, panels, and headers.
- Checked welding processes, welder qualifications, preheating, welding consumables, and parameters.
- Performed weld visual inspection and witnessed RT, MT, PT, PMI, PWHT, and post-PWHT appearance checks.
- Inspected tube bending, ovality, wall thickness, ball passage, coil dimensions, module assembly, and welding.
- Witnessed hydrostatic testing and performed final dimensional, painting, marking, packing, and document inspections.
MAY 2016 – MAR 2018
Client: FL Smidth
Mill Base/Mill shell/Kiln/Kill shell/Ball Mill steel structure
Product: Mill Base/Mill shell/Kiln/Kill shell/Ball Mill steel structure
Position: Steel structure Inspector
Location: Jiangsu Henyuan International Engineering Group
- Reviewed material certifications, WPS/PQR, welding repair, PWHT and NDT procedures, drawings, client specifications, standards, and ITPs.
- Monitored welder examinations and reviewed welder qualifications.
- Verified welding consumables and equipment and performed material receiving, dimensional, orientation, physical, identification, and stage inspections.
- Performed fit-up and final weld visual inspection, monitored NDE, reviewed X-ray films, and inspected trial assemblies.
- Ensured processes complied with technical specifications and approved design drawings.
- Issued and resolved NCRs, led corrective actions, and communicated quality issues with suppliers and relevant departments.
- Prepared final documents, controlled documents, and collected and organized quality records for MDR handover.
MAY 2013 – APR 2016
Client: COSCO Shipping
7x38500DWT Bulk Carrier
Product: 7x38500DWT Bulk Carrier
Position: Hull Supervisor
Location: Shang Hai Guang Shipyard
- Acted as owner’s inspector for hull, outfitting, and pipe welding inspection and reviewed NDE reports.
- Performed pipe and tank tightness, vacuum, tank integrity, and outfitting integrity inspections.
- Witnessed hydraulic tests for piping and leakage tests for systems.
- Attended FATs for steel castings, stern tubes, anchor chains, rudder blades, propellers, hatch covers, FFL, and other equipment.
- Reviewed ITPs, WPSs, and welder and welding-operator certificates.
- Prepared weekly quality and progress reports for structure welding and outfitting inspection.
SEP 2009 – MAR 2013
Ship Newbuilding
Product: Ship Newbuilding
Standards: ABS rules
Position: Hull /Welding/Outfitting Inspector
Location: Jiangsu Rong sheng Heavy Industry
- Maintained inspection drawings and performed daily structural inspections covering material receiving, fit-up, dimensions, and visual inspection according to ABS rules.
- Performed workshop patrol inspections, reported problems, and verified contractor quality procedures against applicable specifications, standards, and codes.
- Performed block completion, sectional fabrication, final assembly, erection-seam fit-up, visual, field-supervision, and dimensional inspections.
- Accompanied the Romania shipowner representative and ABS surveyor during block and erection inspections according to the ITP.
- Translated shipowner and surveyor comments, coordinated reinspection, issued NCRs, monitored corrective actions, and closed NCRs.
- Prepared weekly reports covering schedule attainment, production yield, and outstanding issues.
Skills
- Quality Surveillance
- Welding Inspection
- Structure Inspection
- Hull and Outfitting Inspection
- Third-Party Inspection
- NDT Inspection
- Material Inspection and Traceability
- QA/QC Supervision
- Shipyard Quality Control
- Pressure Vessel Inspection
- Heat Exchanger Inspection
- Mooring Chain Inspection
- Steel Structure Inspection
- Vendor Surveillance
- Document Review
- NCR and Corrective Action Management
- ITP Review
- Final Documentation
Commodities
- Vessels
- Mooring Chains
- Pressure Vessels
- Steel Structures
- Heat Exchangers
- Air Cooled Heat Exchangers
- Chemical Modules
- LPG Systems
- Boilers
- Cyclones
- Piping
- Pipes
- Flanges
- Fittings
- Valves
- Tubes
- Tube Bundles
- Structural Steel
- Bolts and Nuts
- Welding Consumables
- Paint and Coating Materials
- Fans
- Motors
- Lifting Beams
- Ship Hulls
- Ship Outfitting