Summary
Yao Jin (Jason Yao) is a quality supervisor and inspector with 15+ years of experience in site installation, welding, production-process surveillance, and quality control. His background covers vessel newbuilding, mooring chains, pressure vessels, steel structures, heat exchangers, modules, LPG systems, and mining equipment. He has performed inspection and supervision for major shipbuilding, offshore, energy, and industrial projects, working with clients and organizations including SBM, TORM, COSCO Shipping, Chemours, TR/SINOPEC, and FL Smidth. His capabilities include ITP compliance, material traceability, welding and welder qualification review, NDE surveillance, dimensional and visual inspection, NCR close-out, and final documentation. He has also reviewed drawings, WPS/PQRs, MTRs, QCFs, MDRs, and release documentation.
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 UT, Time Period: 05/2025-04/2031
- ASNT Level II MT, Time Period: 05/2025-04/2031
- ASNT Level II RT, Time Period: 04/2026-09/2031
- ASNT Level II PT, Time Period: 04/2026-04/2031
Codes & Standards
- ASME IX&V& VIII
- AWS D1.1
- SSPC Painting inspection
Work Experience
Sep 2009 – Present
FREELANCE (Various clients)
- Performed quality surveillance, inspection, and supervision for ship newbuilding, mooring chains, pressure vessels, steel structures, heat exchangers, modules, LPG systems, and related industrial equipment.
- Managed material receiving, welding and fit-up inspection, NDE witnessing, dimensional and visual inspection, testing, coating inspection, and final release activities.
- Reviewed drawings, ITPs, WPS/PQRs, MTRs, NDE documentation, quality records, MDRs, final books, and other technical documentation.
- Supported shipyards and vendors with NCR corrective actions, quality reporting, traceability, and compliance with applicable specifications, standards, and codes.
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
- Performed main material receiving inspection and visual and dimensional checks on the tube bundle frame.
- Performed 100% MT on lifting lug welds to the side frame and checked HDG or painting protection against the Protection Specification.
- Inspected carbon steel plug-type header raw materials and reviewed mill test certificates for pressure parts and weld consumables.
- Transferred traceability index codes and monitored raw-material cutting, NDE before and after PWHT, PWHT, hardness testing, surface preparation, and coating of header boxes.
- Inspected base-tube and finned-tube raw materials, reviewed base-tube material certificates, and monitored finned-tube manufacturing.
- Checked bundle assembly, cleanliness, fit-up, tube-to-tubesheet joints, 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 review, traceability, flange-to-TEE and TEE-to-pipe welding, visual examination, NDE, hardness testing, dimensional checks, drilling-hole size, surface preparation, and primer painting.
- Inspected steam-coil frames and assemblies, including material receipt, dimensional checks, painting, fit-up and cleanliness, welding, hardness testing, hydrostatic testing, marking, and final painting.
- Inspected louvers, motors, fans, and lifting beams, including material, visual, dimensional, conformity, coating, balancing, load, NDE, documentation, and certificate checks.
- Reviewed design calculations, drawings, type-test reports, routine tests, explosion-proof certificates, nameplates, MRBs, IOMs, and conformity certificates.
- Witnessed trial assembly and factory acceptance testing, performed final inspection and shipment preparation, and reviewed final documentation.
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 processes.
- Witnessed proof-load, mechanical, breaking-load, and final NDT tests.
- Performed final visual and dimensional checks, 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-material plates, sections, angles, channels, pipes, and related materials.
- Inspected incoming bolts, nuts, washers, weld consumables, paint, and intumescent fireproofing.
- Performed lamination checks on plates 40 mm and above where required.
- Inspected identification marking, sizing, bending, holing, and drilling during production.
- Performed fit-up inspection, weld visual inspection, ultrasonic testing, and MPI.
- Performed final dimensional and visual inspection of completed items.
- 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
- Performed material visual, dimensional, PMI, and material-certificate inspections.
- Inspected cutting, marking transfer, appearance, dimensions, fit-up, shell roundness, longitudinal seams, and circumferential seams.
- Performed PMI and ferrite testing on welds and witnessed 100% RT and 100% PT NDE.
- Inspected internal polishing, nozzles and flanges, including cutting, marking, fit-up, welding, PMI, NDE, and polishing.
- Inspected final assembly, hole marking, hole opening, groove, fit-up, welding, NDE, and PMI.
- Performed roughness checks, final visual and dimensional inspection before hydrostatic testing, and hydrostatic testing.
- 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 header raw materials, PMI, MTCs, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
- Inspected pipe-header materials, traceability, flange-to-TEE and TEE-to-pipe welding, visual examination, NDE, hardness testing, dimensional checks, drilling-hole size, surface preparation, and primer painting.
- Inspected base tubes and finned tubes, including material certificates and finned-tube manufacturing.
- Inspected the steam-coil bundle frame and reviewed its material, visual, dimensional, and protection requirements.
- Inspected motors, fans, and lifting beams, including testing, material, dimensional, visual, coating, conformity, NDE, load testing, and documentation.
- Witnessed trial assembly and factory acceptance testing, performed final inspection and shipment preparation, and reviewed final documentation.
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 vessel draft marks, load line marks, freeboard marks, hull name marks, in-water boundary marks, and principal dimensions.
- Performed tank completion inspection, tank tightness testing, and final inspection before tank close-up.
- Inspected hull outfitting items including windlasses, winches, 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 for relevant outfitting items.
JUL 2023 – MAR 2024
Client: Company: NIPI GAS
ALNG2 Project
Vendor: Tianjin BOMESC Yard
Position: Welding and Structure Inspector
- Surveilled the complete fabrication and construction progress of ALNG2 at BOMESC yard and ensured inspection activities followed ITP steps and applicable specifications.
- Explained project specification, code, and standard requirements to yard QC and construction personnel.
- Witnessed welding PQRs, welder qualification tests, and material and welding specimen mechanical tests, and verified results against specifications and standards.
- Surveilled fabrication and construction, reduced NCR risk, issued responses to corrective-action requests, followed up corrective actions, and minimized interference with subsequent construction.
- Verified structure integrity against AFC drawings and requested TQs for non-compliance; verified TQ and SIS implementation.
- Witnessed material receiving inspection and verified delivery documents, mill-certificate traceability, 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.
- Surveilled welding-consumable storage, baking, and issue in accordance with procedures.
- Reviewed NDE rejection rates and fabrication rework rates and provided quality-improvement guidance to the yard subcontractor.
- Reported inspection results through Easy Plant and reviewed structure QCFs before upload.
- 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, and other piping materials.
- Performed PMI on stainless-steel components and inspected welding materials.
- Reviewed welder, welding-operator, and NDT-operator qualifications, including PQR and WPS documentation.
- Checked storage of materials and welding consumables, cutting and forming, marking, and traceability.
- Performed head visual and dimensional inspection, fit-up and alignment checks, mark-transfer checks, nozzle-location marking and cutting, and opening inspection.
- Inspected welding activities including layout, machining, beveling, shell and butt welds, shell-to-head joints, and nozzles.
- Witnessed RT, MT, PT, dimensional checks before hydrostatic testing, and hydrostatic testing.
- Inspected surface preparation, blasting, painting, final visual and dimensional condition, cleanliness, gasket seating surfaces, nameplates, tagging, marking, flange protection, and thread-opening plugging.
- Reviewed documentation before release, packing and preservation, release notes, and the final book.
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 meetings and technical disclosure meetings.
- Supervised and managed the new-shipbuilding project on behalf of the ship owner.
- Coordinated with the shipyard, reviewed drawings, monitored the complete production process, and reported work information to the company.
- Arranged the work of project-team members and supported decision-making on process problems.
- Worked to achieve project objectives and owner satisfaction and 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 tests.
- Performed final visual and dimensional checks, 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
Position: Structure Inspector
- Reviewed MTRs, WPS/PQRs, NDE personnel qualifications, and test-equipment calibration certificates.
- Inspected steel plates, shapes, angle steel, channel steel, and SDSS pipe.
- Checked fit-up and welding processes, including surface preparation, groove angle, root face, joint root opening, misalignment, preheating, inter-pass temperature, welding parameters, and heat straightening.
- Performed visual and dimensional inspection of weldments, columns, frames, girders, beams, and assembled steel modules, including orientation and leveling of assembled steel pipe.
- Witnessed UT, MT, PT, RT film review, and hydrostatic testing of assembled pipe.
- Inspected hot-dip galvanizing, including zinc-ingot certificates, zinc-bath analysis, coating thickness, adhesion, and appearance.
- Inspected painting fabrication, cable terminations, tubing fabrication, punch close-out, FAT, FOB release, final completeness, and documentation.
- Reviewed applicable ASME IX&V& VIII, AWS D1.1, and SSPC painting-inspection requirements.
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 and identification, painting and color coding, and trial-fitting testing according to the FAT procedure.
- Performed final inspection, packing checks, and final-document review.
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 ITP documentation.
- Reviewed qualifications of shipyard construction personnel, welders, and NDT operators.
- Performed daily inspection from fit-up through block final inspection, including full-penetration joints, back gouging, and CM points.
- Monitored block quality during construction and issued inspection comments with photographs for corrective action where nonconformities were identified.
- 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, rescue boats, and other equipment.
- Participated in sea trials and witnessed anchor-windlass function tests, sound and vibration tests, lifeboat and rescue-boat function tests, and safety-equipment 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 performance qualification, welding procedure qualification, and mock-up testing for tube-to-tubesheet joint welding.
- Performed fit-up inspection, welding witnessing, NDE witnessing and review, PMI, ferrite testing, and laboratory tests.
- Witnessed FAT, hydrostatic testing, leak testing, and fugitive-emission testing.
- Performed sandblasting and painting inspection, packing inspection, MDB review, and IRN issuance.
MAY 2018 – FEB 2020
Client: COSCO Shipping
6x400000DWT VLOC
Product: 6x400000DWT VLOC
Position: Hull supervisor
Location: COSCO(Yangzhou) Shipyard
- Acted as the owner’s inspector and performed hull, outfitting, and pipe welding inspection and NDE-report review.
- Performed pipe and tank tightness tests, vacuum tests, tank-integrity tests, and outfitting-integrity inspections.
- Performed hydraulic testing of piping and system leakage testing.
- 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 for the Site Manager.
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 visual checks, outside diameter and wall-thickness checks, marking inspection, and MTR review.
- Inspected material-identification transfer marking.
- Checked butt-weld fit-up, tube-splicing joint fit-up, pipe-to-pipe fit-up, nozzle-to-heater fit-up, and panel-to-header fit-up.
- Checked welding processes, welder qualifications, preheating, welding consumables, and welding parameters.
- Performed weld visual inspection and witnessed RT, MT, and PT NDE.
- Inspected tube bending, ovality, wall thickness, ball-pass testing, coil layout dimensions, coil-module assembly, and welding.
- Performed PMI on alloy materials, monitored PWHT, and checked appearance after PWHT.
- Performed dimensional inspection, hydrostatic testing, final inspection, painting, marking, packing, and document review.
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/PQRs, welding-repair procedures, PWHT procedures, NDT procedures, drawings, client specifications, applicable standards, and ITPs.
- Monitored welder examinations and reviewed welder qualifications.
- Verified welding consumables and equipment against applicable requirements.
- Performed material receiving inspection, dimensional orientation, physical checks, welding-process control, stage inspection, and material-control identification.
- Performed fit-up inspection, final-weld visual examination, NDT monitoring, X-ray film review, and trial-assembly inspection.
- Verified processes and operating procedures against technical specifications and approved design drawings.
- Issued and followed up NCR corrective actions with the supplier and relevant departments.
- Prepared final documents, controlled quality records, organized customer-required documents, and handed over the MDR to the final customer.
MAY 2013 – APR 2016
Client: COSCO Shipping
7x38500DWT Bulk Carrier
Product: 7x38500DWT Bulk Carrier
Position: Hull Supervisor
Location: Shang Hai Guang Shipyard
- Acted as the owner’s inspector and performed hull, outfitting, and pipe welding inspection and NDE-report review.
- Performed pipe and tank tightness tests, vacuum tests, tank-integrity tests, and outfitting-integrity inspections.
- Performed hydraulic testing of piping and system leakage testing.
- 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 for the Site Manager.
SEP 2009 – MAR 2013
Ship Newbuilding
Product: Ship Newbuilding
Position: Hull /Welding/Outfitting Inspector
Location: Jiangsu Rong sheng Heavy Industry
- Maintained related drawings for inspection use.
- Performed daily structure inspections, including material receiving, fit-up, dimensional, and visual inspection according to ABS rules.
- Performed workshop patrol inspection and reported problems, ensuring contractor quality procedures complied with applicable specifications, standards, and codes.
- Performed block-completion inspection and identified weld defects and fabrication problems.
- Performed fit-up, visual, field-supervision, and dimensional inspections of sectional fabrication and final assembly.
- Accompanied a Romania shipowner representative and ABS surveyor during block and erection inspections according to the ITP and translated comments into Chinese for the product department.
- Recorded shipowner and surveyor comments, coordinated reinspections, and followed comments through final close-out.
- Issued NCRs, monitored corrective actions, and closed NCRs.
- Prepared weekly reports covering schedule attainment, production yield, and outstanding issues.
- Inspected erection-seam fit-up and final condition.
Skills
- Quality Supervision
- Welding Inspection
- Structure Inspection
- Hull and Outfitting Inspection
- Third-Party Inspection
- Material Inspection
- NDE Surveillance
- QA/QC Documentation
- ITP Compliance
- Welding Procedure and Welder Qualification Review
- Vendor Surveillance
- NCR Corrective Action Follow-up
- Technical Document Review
- Final Inspection and Release
Commodities
- Vessels
- Mooring Chains
- Pressure Vessels
- Heat Exchangers
- Air-Cooled Heat Exchangers
- Steel Structures
- Chemical Modules
- LPG Systems
- Piping
- Boilers
- Cyclones
- Ship Hulls
- Ship Outfitting
- Valves
- Pumps
- Fans
- Motors
- Lifting Beams
- Tube Bundles
- Finned Tubes
- Flanges
- Forgings
- Castings
- Structural Steel
- Painting and Coating