Summary
Yao Jin (Jason Yao) is a quality supervisor and inspector with 15+ years of experience in quality surveillance for vessel newbuilding, mooring chain, pressure vessels, steel structures, exchangers, modules, and mining equipment. He has rich site experience covering installation, welding, and production processes, with particular strength in welding, structure, hull, outfitting, and equipment inspection. His background includes detailed surveillance of air-cooled heat exchangers, pressure-retaining headers, tube-to-tubesheet joints, PWHT, NDE, hydrostatic testing, coating, documentation, and factory acceptance testing. He has supervised vessel fabrication and onboard erection, tank completion, tightness testing, and hull outfitting activities. He has also managed ITP compliance, quality reporting, NDE record review, NCR corrective actions, and technical coordination with shipyards, vendors, and major clients.
Education
- Bachelor Degree, 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
Codes & Standards
- ASME IX&V& VIII
- AWS D1.1
- SSPC Painting inspection
Work Experience
Sep 2009 – Present
FREELANCE (Various clients)
- Performed quality surveillance and inspection for vessel newbuilding, mooring chain, pressure vessels, steel structures, exchangers, modules, and related equipment.
- Supervised installation, welding, fabrication, production processes, hull, outfitting, and structure activities against ITPs, drawings, specifications, standards, and acceptance criteria.
- Performed material, welding, dimensional, visual, NDE, testing, coating, documentation, and final-release inspections for shipyards, vendors, and industrial projects.
- Managed inspection reporting, quality records, NCR corrective actions, technical coordination, and client or owner requirements.
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 for 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.
- Checked traceability index-code transfer and cutting of raw materials, NDE before and after PWHT, PWHT, hardness testing, surface preparation, and coating of header boxes.
- Inspected base tube and finned tube raw materials and reviewed base tube 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, local 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 receipt, MTC review, traceability, flange-to-TEE and TEE-to-pipe welding, NDE, hardness testing, dimensional inspection, surface preparation, and primer painting.
- Inspected steam coil bundle frames and assemblies, including material receipt, fit-up, welding, hardness testing, dimensional checks, hydrostatic testing, marking, cleaning, touch-up, and final painting.
- Inspected louvers, motors, fans, and lifting beams, including material, visual, dimensional, conformity, balancing, load, coating, certificate, MRB, and IOM checks.
- Reviewed motor type-test reports and explosion-proof certificates and checked fan HTD belt conformity.
- Reviewed lifting-beam design calculations and drawings and witnessed the load test.
- 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 testing.
- 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 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 materials including plates, sections, angles, channels, and pipes.
- Inspected incoming bolts, nuts, washers, weld consumables, paint, and intumescent fireproofing.
- Checked plates 40 mm and above for lamination where mill inspection had not been performed by the steel manufacturer.
- Inspected identification marking, sizing, bending, and holing or drilling during production.
- Performed fit-up inspection, weld visual inspection, ultrasonic testing, and MPI testing.
- Performed final dimensional and visual inspection and painting inspection.
- 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 and dimensional checks, PMI, and material certificate review.
- Inspected cutting, marking transfer, appearance, dimensions, fit-up, longitudinal and circumferential seam welding, shell roundness, and weld PMI and ferrite testing.
- Witnessed RT 100% and PT 100% NDE and inspected internal polishing.
- Inspected nozzle and flange cutting, marking, fit-up, welding, PMI, ferrite testing, NDE, and internal polishing.
- Inspected final assembly, hole marking, hole opening, groove, fit-up, welding, NDE, and PMI.
- Checked final polishing and roughness before hydrostatic testing.
- Performed final visual and dimensional inspection, hydrostatic testing, surface preparation, painting, pickling, passivation, coil fabrication, and assembly inspection.
- Performed 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 materials, PMI, MTCs, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
- Inspected pipe header material receipt, MTCs, traceability, flange-to-TEE and TEE-to-pipe welding, NDE, hardness testing, dimensions, surface preparation, and primer painting.
- Inspected base tube and finned tube materials, mill test certificates, and finned tube manufacturing.
- Inspected the steam coil bundle frame and checked materials, visual and dimensional condition, and protection.
- Reviewed motor type-test and explosion-proof certificates and performed motor visual, dimensional, coating, nameplate, conformity, MRB, and IOM checks.
- Inspected fans, including material, visual, dimensional, conformity, balancing, belt, certificate, MRB, and IOM checks.
- Reviewed lifting-beam calculations and drawings and inspected the lifting beam through material, visual, dimensional, NDE, conformity, and load testing.
- 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 onboard erection.
- Inspected vessel draft, load line, freeboard, hull name, in-water boundary marks, and principal 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 ladder installation.
- 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
- Surveilled the complete fabrication and construction progress of ALNG2 at BOMESC yard and ensured inspection activities followed ITP steps and applicable specifications and 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 results.
- Surveilled fabrication and construction, controlled NCR risk, issued responses to corrective-action requests, and followed up corrective actions.
- Verified structure integrity against AFC drawings and requested TQ 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 completion checks.
- Performed weld visual inspection, witnessed bolt torque-wrench calibration and tightening, and witnessed dimensional measurement and total-station surveys.
- Surveilled welding consumable storage, baking, and issuing against procedure.
- Reviewed welding NDT rejection and fabrication rework rates and provided quality-improvement guidance to the yard subcontractor.
- 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 receipt of plates, forgings, flanges, fittings, pipes, welding materials, and stainless-steel components, including PMI.
- Reviewed welder and NDT operator qualifications, PQRs, WPSs, material storage, and welding-consumable storage.
- Inspected cutting, forming, marking, traceability, head dimensions, fit-up, alignment, mark transfer, nozzle locations, openings, and welding.
- Witnessed RT, MT, and PT and performed dimensional checks before hydrostatic testing.
- Inspected surface preparation, blasting, painting, final visual and dimensional condition, cleanliness, gasket seating surfaces, nameplates, tagging, marking, flange protection, and thread openings.
- Reviewed documentation before release, packing and preservation, release notes, and the final book.
Client: An Feng Shipping
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 the new shipbuilding project on behalf of the ship owner.
- Coordinated with the shipyard, reviewed drawings, monitored production, and reported work information to the company.
- Arranged the work of project team members and checked problems arising during production.
- 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 testing.
- 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 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 preparation, groove angle, root face, joint opening, misalignment, preheat, inter-pass temperature, welding parameters, and heat straightening.
- Performed visual and dimensional checks of columns, frames, girders, beams, and assembled steel modules, including orientation and levelling 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, close-out punch items, FAT, and FOB release.
- Performed final inspection, checked completeness, and reviewed final documents.
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 colour coding.
- Witnessed trial fitting according to the FAT procedure.
- Performed final inspection, packing checks, and final document review.
JUL 2020 – JUN 2021
Client: CDBL
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 inspection from fit-up through block final inspection, including full-penetration joints, back gouging, and CM points.
- Monitored block construction quality and issued field comments with photographs for nonconformities and 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, rescue boats, and other equipment.
- Participated in sea trials and witnessed anchor-windlass function, sound and vibration, lifeboat and rescue-boat function, 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 and welding procedure qualification.
- Witnessed mock-up testing for tube-to-tubesheet joint welding.
- Performed fit-up inspection, welding witnessing, NDE witnessing and review, PMI, ferrite testing, and laboratory testing.
- Witnessed FAT, hydrostatic testing, leak testing, and fugitive emission testing.
- Inspected sandblasting, painting, packing, and reviewed the MDB.
- Issued IRNs.
MAY 2018 – FEB 2020
Client: COSCO Shipping
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, outfitting-integrity, hydraulic 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, OD, wall thickness, marking, and MTR review.
- Inspected material identification transfer marking.
- Inspected fit-up of butt welds, tube splicing joints, pipes, nozzles to heaters, and panels to headers.
- Checked welding processes, welder qualifications, preheating, welding consumables, and parameters.
- Performed weld visual inspection and witnessed RT, MT, and PT.
- Inspected tube bending, ovality, wall thickness, ball passage, coil layout dimensions, module assembly, and welding.
- Witnessed PMI of alloy materials and 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
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 and PWHT procedures, NDT procedures, drawings, client specifications, standards, and ITPs.
- Monitored welder examinations and reviewed welder qualifications.
- Checked welding consumables and equipment against requirements.
- Performed material receiving, dimensional, orientation, physical, material-control, identification, welding-process, and stage inspections.
- Performed fit-up inspection, final-weld visual examination, NDT monitoring, X-ray film review, and trial-assembly inspection.
- Issued NCRs, followed corrective actions, and communicated quality issues with suppliers and relevant departments.
- Prepared final documents, controlled documents, organized quality records, and handed over the MDR to the final customer.
MAY 2013 – APR 2016
Client: COSCO Shipping
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, outfitting-integrity, hydraulic 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
Product: Ship Newbuilding
Position: Hull /Welding/Outfitting Inspector
Location: Jiangsu Rong sheng Heavy Industry
- Maintained related drawings for inspection use.
- Performed daily structure inspection including material receiving, fit-up, dimensional, and visual inspection according to ABS rules.
- Performed workshop patrol inspections, reported problems, and checked contractor quality procedures against specifications, standards, and codes.
- Performed block completion, sectional fabrication, final assembly, erection-seam fit-up, visual, field-supervision, and dimensional inspections.
- Accompanied the shipowner representative and ABS surveyor during block and erection inspections and translated comments into Chinese.
- Recorded shipowner and surveyor comments, coordinated reinspection, and monitored comment close-out.
- 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
- Pressure Vessel Inspection
- Heat Exchanger Inspection
- Mooring Chain Inspection
- NDT
- Material Inspection
- QA/QC Inspection
- ITP Compliance
- Vendor Surveillance
- Coating / Painting Inspection
- Documentation Review
- Shipbuilding Inspection
Commodities
- Vessels
- Mooring Chain
- Pressure Vessels
- Steel Structures
- Air Cooled Heat Exchangers
- Heat Exchangers
- Chemical Modules
- LPG Systems
- Cyclones
- Boilers
- Piping
- Tubes
- Finned Tubes
- Headers
- Valves
- Flanges
- Fittings
- Forgings
- Shipbuilding Equipment
- Mining Equipment
- Structural Steel
- Bolts, Nuts and Washers
- Welding Consumables
- Paint and Intumescent Materials
- Cables and Tubing