Summary
Yao Jin (Jason Yao) is a quality supervisor and inspector with 15+ years of experience in installation, welding, production-process control, and site quality surveillance. His experience covers vessel newbuilding, mooring chains, pressure vessels, steel structures, heat exchangers, modules, mining equipment, and related industrial systems. He has performed inspection and supervision across shipyards, fabrication yards, and equipment manufacturing facilities, managing activities in accordance with ITPs, drawings, specifications, acceptance criteria, and applicable codes and standards. His technical scope includes material receiving, welding and fit-up, NDE, PWHT, hydrostatic and load testing, dimensional inspection, coating, documentation review, and final release. He has also followed up corrective actions, technical queries, NCRs, inspection reporting, and quality documentation through project completion.
Education
- Bachelor, Major: Welding Technology, Bohai Shipping Professional College (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 shipbuilding, pressure equipment, steel structures, heat exchangers, modules, mooring chains, and industrial equipment.
- Managed material, welding, fit-up, NDE, testing, dimensional, coating, documentation, and final-release activities across fabrication and construction projects.
- Reviewed ITPs, drawings, procedures, qualifications, certificates, inspection records, and final quality documentation.
- Followed up technical queries, NCRs, corrective actions, inspection findings, and project close-out 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 receiving, visual, dimensional, magnetic particle, coating, and protection inspections on tube-bundle frames and lifting-lug welds.
- Inspected carbon-steel plug-type headers, including material certificates, traceability, cutting, NDE before and after PWHT, PWHT, hardness testing, surface preparation, and coating.
- Inspected base-tube and finned-tube materials and manufacturing.
- Checked bundle assembly, tube-to-tubesheet fit-up, cleanliness, mock-up testing, welding, visual examination, NDE, PWHT, hardness testing, plugging, torque control, hydrostatic testing, marking, cleaning, and painting.
- Inspected stainless-steel plug-type headers, including PMI, material traceability, nozzle-to-flange 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, NDE, hardness testing, dimensional checks, drilling-hole checks, and primer painting.
- Inspected steam-coil frames and assemblies, including fit-up, cleanliness, welding, hardness testing, dimensional checks, hydrostatic testing, marking, touch-up, and final painting.
- Inspected louvers, motors, fans, lifting beams, conformity certificates, MRB and IOM documentation, design calculations, load testing, trial assembly, factory acceptance testing, final inspection, shipment preparation, and 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 processes.
- 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 plates, sections, angles, channels, pipes, bolts, nuts, washers, welding consumables, paint, and intumescent fire-proofing materials.
- Performed lamination checks on plates 40 mm and above.
- Inspected identification marking, sizing, bending, and drilling.
- 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 review.
- Inspected cutting, marking transfer, dimensions, fit-up, longitudinal and circumferential seam welding, roundness, and shell fabrication.
- Performed PMI and ferrite testing of welds and witnessed 100% RT and PT.
- Inspected nozzles and flanges, including cutting, marking, fit-up, welding, PMI, ferrite testing, NDE, and internal polishing.
- Inspected final assembly, hole marking, hole opening, grooves, fit-up, welding, NDE, PMI, polishing, and roughness.
- Witnessed hydrostatic testing and performed final visual and dimensional inspection.
- 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 PMI, material certificates, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
- Inspected pipe headers, including material review, traceability, welding, NDE, hardness testing, dimensional checks, drilling-hole checks, and primer painting.
- Inspected base-tube and finned-tube materials and manufacturing.
- Inspected steam-coil bundle frames, motors, fans, and lifting beams, including visual, dimensional, coating, conformity, 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 in accordance with the ITP.
- Inspected vessel erection onboard.
- Inspected draft marks, load-line marks, freeboard marks, hull-name marks, 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
- Performed inspection throughout the fabrication and construction progress in accordance with ITP steps, specifications, and acceptance criteria.
- Explained project specifications, codes, and standards to yard QC and construction personnel.
- Witnessed welding PQR, welder qualification, material, and welding-specimen mechanical tests and verified results.
- Surveilled fabrication and construction, followed up corrective actions, reduced NCR risk, and reviewed technical queries and site instruction implementation.
- Verified structural integrity against AFC drawings and witnessed material receiving and traceability checks.
- Performed fit-up inspections, welding-parameter audits, WPS application checks, weld visual inspection, bolt-torque checks, dimensional measurements, and total-station surveys.
- Monitored welding-consumable storage, baking, and issue controls.
- Reviewed NDE rejection and fabrication rework rates and provided quality-improvement guidance.
- Reported inspection results through Easy Plant and reviewed structure QCFs.
- Monitored NDE operators, equipment calibration, consumables, radiograph interpretation, and NDE QCFs.
APR 2023 – JUL 2023
Client: CCPMT
KINGFISHER OIL FIELD FACILITIES PROJECT
Product: LPG SYSTEM
Position: Inspector
- Inspected plates, forgings, flanges, fittings, pipes, stainless-steel components, welding materials, and material storage.
- Reviewed welder, welding-operator, and NDT-operator qualifications and reviewed PQR and WPS documentation.
- Inspected cutting, forming, marking, traceability, heads, fit-up, alignment, nozzle locations, openings, and welding activities.
- 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, nameplates, tagging, marking, flange protection, and thread plugging.
- Reviewed documentation, packing, 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 and technical-disclosure meetings.
- Supervised and managed onsite new-shipbuilding activities on behalf of the ship owner.
- Coordinated with the shipyard, reviewed drawings, monitored production, and reported work information to the company.
- Arranged project-team activities, supported decision-making on production problems, 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
Standards: ASME IX&V& VIII AWS D1.1, SSPC Painting inspection
Position: Structure Inspector
- Reviewed MTRs, WPS/PQRs, NDE personnel qualifications, test-equipment calibration certificates, ITPs, and project documentation.
- Inspected steel plates, shapes, angle steel, channel steel, and SDSS pipe materials.
- Checked fit-up and welding processes, including surface preparation, groove geometry, root face, joint opening, misalignment, preheating, inter-pass temperature, welding parameters, and heat straightening.
- Performed visual and dimensional inspections of columns, frames, girders, beams, and assembled steel modules.
- Witnessed UT, MT, PT, RT film review, and hydrostatic testing of assembled pipe.
- Inspected hot-dipped galvanizing, including zinc certificates, zinc-bath analysis, coating thickness, adhesion, and appearance.
- Inspected painting fabrication, cable terminations, tubing fabrication, punch close-out, FAT, FOB release, final inspection, and documentation.
JUN 2021 – NOV 2021
Client: Killick Group
Woodside SANGOMAR
Product: Mooring chain
Position: Inspector
Location: FMAC
- Performed incoming raw-material inspection and 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, colour coding, and trial-fitting testing in accordance with 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 ITP requirements.
- Reviewed qualifications of shipyard welders and NDT operators.
- Performed daily inspections 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 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.
- Reviewed welder performance qualifications and welding procedure qualifications.
- Witnessed mock-up testing for tube-to-tubesheet joint welding, fit-up, welding, NDE, PMI, ferrite testing, and laboratory testing.
- Witnessed FAT, hydrostatic testing, leak testing, and fugitive-emission testing.
- Inspected sandblasting, painting, packing, and final documentation.
- Reviewed MDBs and issued IRNs.
MAY 2018 – FEB 2020
Client: COSCO Shipping
Product: 6x400000DWT VLOC
Position: Hull supervisor
Location: COSCO(Yangzhou) Shipyard
- Acted as the owner's inspector for hull, outfitting, and pipe welding inspection and reviewed NDE reports.
- Performed pipe and tank tightness tests, vacuum tests, tank-integrity tests, and outfitting-integrity inspections.
- Performed hydraulic tests for piping and leakage tests for systems.
- Attended FATs for steel castings, stern tubes, anchor chains, rudder blades, propellers, hatch covers, and FFL.
- 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, outside diameter, wall thickness, marking, and MTR review.
- Inspected material identification transfer marking and fit-up of butt joints, tube splicing joints, pipe-to-pipe joints, 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, PT, PMI, PWHT, and post-PWHT examination.
- Inspected tube bending, ovality, wall thickness, ball-pass testing, coil dimensions, coil assembly, and welding.
- Witnessed hydrostatic testing and performed final dimensional, painting, marking, packing, and document inspections.
MAY 2016 – MAR 2018
Client: FL Smidth
Vendor: Jiangsu Henyuan International Engineering Group
Product: Mill Base/Mill shell/Kiln/Kill shell/Ball Mill steel structure
Position: Steel structure Inspector
- 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 welding-process inspections.
- Performed fit-up inspection, final weld visual examination, NDT monitoring, X-ray film review, and trial-assembly inspection.
- Ensured processes complied with technical specifications and approved design drawings.
- Issued and followed up NCR corrective actions with suppliers and relevant departments.
- Prepared final documents and controlled, collected, summarized, and organized quality records for MDR handover.
MAY 2013 – APR 2016
Client: COSCO Shipping
Product: 7x38500DWT Bulk Carrier
Position: Hull Supervisor
Location: Shang Hai Guang Shipyard
- Acted as the owner's inspector for hull, outfitting, and pipe welding inspection and reviewed NDE reports.
- Performed pipe and tank tightness tests, vacuum tests, tank-integrity tests, and outfitting-integrity inspections.
- Performed hydraulic tests for piping and leakage tests for systems.
- Attended FATs for steel castings, stern tubes, anchor chains, rudder blades, propellers, hatch covers, and FFL.
- 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
Product: Ship Newbuilding
Standards: ABS rules
Position: Hull /Welding/Outfitting Inspector
Location: Jiangsu Rong sheng Heavy Industry
- Maintained drawings for inspection use and performed daily structure inspections covering material receiving, fit-up, dimensions, and visual inspection.
- Performed patrol inspections, reported workshop problems, and checked 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 shipowner representative and ABS surveyor during inspections and translated comments for the product department.
- Tracked shipowner and surveyor comments through reinspection and close-out.
- Issued NCRs, monitored corrective actions, and completed weekly reports covering schedule attainment, production yield, and outstanding issues.
Skills
- Quality Surveillance
- Welding Inspection
- Structure Inspection
- Hull and Outfitting Inspection
- Third-Party Inspection
- Material Inspection
- NDE Coordination and Review
- QA/QC Documentation
- ITP and Drawing Review
- Welding Procedure and Welder Qualification Review
- Pressure Vessel Inspection
- Heat Exchanger Inspection
- Mooring Chain Inspection
- Steel Structure Inspection
- Coating and Painting Inspection
- Corrective Action and NCR Follow-up
- Final Documentation Review
Commodities
- Vessels
- Mooring Chains
- Pressure Vessels
- Heat Exchangers
- Air-Cooled Heat Exchangers
- Steel Structures
- Chemical Modules
- Piping
- Boilers
- Cyclones
- Mining Equipment
- Mill Shells
- Kilns
- Ball Mills
- Valves
- Pumps
- Structural Steel
- Tubes
- Flanges
- Forgings
- Ship Outfitting
- Windlasses
- Winches
- Cranes
- Propellers