Yao Jin (Jason Yao)

Yao Jin (Jason Yao) is a quality and inspection professional with 15+ years of experience in site installation, welding, production-process surveillance, and fabrication quality control. His background covers vessel newbuilding, mooring chains, pressure vessels, steel structures, exchangers, modules, mining equipment, boilers, piping, and related industrial components. He has carried out and supervised material receiving, welding and fit-up inspection, NDE, PWHT, hydrostatic and mechanical testing, coating inspection, assembly, FAT, final inspection, and documentation review. He has worked with shipyards, manufacturers, vendors, and owner teams, applying ITPs, drawings, specifications, traceability controls, NCR processes, and corrective actions. He is a certified welding and inspection professional with strong experience in technical surveillance, quality reporting, and shipyard production oversight.

Education

Qualifications and Training

Codes & Standards

Work Experience

Sep 2009 – Present FREELANCE (Various clients)

Performed quality surveillance and inspection for vessel newbuilding, mooring chains, pressure vessels, steel structures, exchangers, modules, mining equipment, boilers, piping, and related industrial equipment.
Carried out material receiving, fit-up, welding, NDE, PWHT, hydrostatic, mechanical, dimensional, coating, assembly, FAT, final, and documentation inspections.
Supervised shipyard hull, structure, welding, outfitting, erection, tank integrity, and production activities for owner, client, vendor, and shipyard assignments.
Reviewed ITPs, drawings, specifications, codes, qualifications, traceability records, NCRs, corrective actions, quality reports, and final dossiers.

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 materials receiving, visual and dimensional inspection, and 100% MT of lifting-lug welds for the tube-bundle frame, and checked HDG or painting protection against the Protection Specification.
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 manufacturing, including material certificates and production activities.
Checked bundle assembly, TTS fit-up and cleanliness, TTS mock-up testing, full-strength TTS welding, visual examination, NDE, PWHT, local PWHT, hardness testing, plugging, torque control, lubrication, hydrostatic testing, marking, cleaning, and painting.
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 control, flange-to-TEE and TEE-to-pipe welding, visual examination, NDE, hardness testing, dimensional checks, drilling-hole checks, surface preparation, and primer painting.
Inspected steam-coil frames and assemblies, including material receiving, dimensional checks, painting, fit-up, cleanliness, welding, hardness testing, hydrostatic testing, marking, and final painting.
Inspected louvers, motors, fans, and lifting beams, including material, dimensional, conformity, balancing, load, NDE, coating, type-test, routine-test, explosion-proof certificate, MRB, and IOM reviews.
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 processes.
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, weld consumables, paint, and intumescent fireproofing materials.
Checked plates 40 mm and above for lamination where mill inspection had not been performed.
Inspected identification marking, sizing, bending, and holing or 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 materials 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, shell roundness, and weld PMI and ferrite testing.
Witnessed RT 100% and PT 100% NDE and inspected internal polishing.
Inspected nozzle and flange cutting, fit-up, welding, PMI, ferrite testing, NDE, and internal polishing.
Inspected final assembly, hole marking and opening, groove, fit-up, welding, NDE, and PMI.
Checked final polishing, roughness, visual and dimensional condition before hydrostatic testing.
Witnessed hydrostatic testing and inspected surface preparation, painting, pickling, passivation, coil fabrication, and assembly.
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 headers, including PMI, material certificates, traceability, fit-up, welding, NDE, FN testing, completed-header PMI, pickling, and passivation.
Inspected pipe headers, including materials, traceability, flange-to-TEE and TEE-to-pipe welding, NDE, hardness testing, dimensional inspection, drilling holes, and primer painting.
Inspected base tubes and finned-tube manufacturing and reviewed mill test certificates.
Inspected steam-coil bundle frames and checked material, visual, dimensional, and protection conditions.
Reviewed motor type-test and routine-test reports and explosion-proof certificates, and inspected motor condition, coating, nameplates, conformity certificates, MRB, and IOM.
Inspected fans, including material, visual, dimensional, conformity, balancing, belt type, conformity certificates, MRB, and IOM.
Inspected lifting beams, including design calculations, drawings, material, visual and dimensional condition, NDE, conformity, load testing, certificates, MRB, and IOM.
Witnessed trial assembly and FAT, 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 in accordance with the ITP.
Inspected onboard erection.
Inspected vessel draft, load-line, freeboard, hull-name, in-water and boundary marks, together with principal vessel dimensions.
Inspected tank completion, 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, hose, and function tests for hull outfitting items.

JUL 2023 – MAR 2024

Client: NIPI GAS

ALNG2 Project

Vendor: Tianjin BOMESC Yard

Position: Welding and Structure Inspector

Covered the fabrication and construction progress of ALNG2 at BOMESC yard and ensured inspection activities followed ITP steps and applicable 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, reduced NCR risk, issued responses to corrective-action requests, and followed up corrective actions.
Verified structural integrity against AFC drawings and raised TQs for drawing or specification non-compliances; verified TQ and SIS implementation.
Witnessed material receiving and checked 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.
Monitored welding-consumable storage, baking, and issue activities.
Reviewed welding NDE 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 and 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, and piping materials and performed PMI on stainless-steel components.
Inspected welding materials and reviewed welder and NDT operator qualifications, PQRs, and WPSs.
Checked material and welding-consumable storage, cutting, forming, marking, and traceability.
Inspected heads, fit-up, alignment, mark transfer, nozzle locations, openings, shell and nozzle welding, and welding preparation.
Performed RT, MT, and PT and checked dimensions before hydrostatic testing.
Witnessed hydrostatic testing and inspected surface preparation, blasting, painting, cleanliness, gasket seating surfaces, nameplates, tagging, marking, flange protection, and thread protection.
Reviewed documentation before release, including the final book, release note, packing, and preservation.
Performed final visual and dimensional inspection.

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 activities on behalf of the shipowner.
Coordinated with the shipyard, reviewed drawings, monitored production, and reported work information to the company.
Arranged the work of project-team members and supported decision-making on production 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 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 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 inspection documentation.
Inspected steel plates, shapes, angle steel, channel steel, and SDSS pipe.
Checked fit-up and welding preparation, including groove angle, root face, joint opening, 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, and PT and reviewed RT films 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, checked completeness, reviewed documents, and completed 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, and heat treatment.
Witnessed surface-hardness testing, proof-load testing, dimensional control, and breaking-load testing.
Witnessed final NDT, visual and mechanical testing, chain marking and identification, painting, and colour coding.
Witnessed trial-fitting tests in accordance with 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 requirements.
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 during construction and issued field comments with photographs for non-conformities 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, and rescue boats.
Participated in sea trials and witnessed anchor-windlass function, sound and vibration, lifeboat and rescue-boat, 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 qualifications and tube-to-tubesheet mock-up testing.
Performed fit-up and welding inspection and witnessed and reviewed NDE.
Performed PMI, ferrite testing, and laboratory-test review.
Witnessed FAT, hydrostatic, leak, and fugitive-emission testing.
Inspected sandblasting, painting, packing, and final documentation.
Reviewed the MDB 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 piping welding inspection and reviewed NDE reports.
Performed pipe and tank tightness, vacuum, tank-integrity, and outfitting-integrity inspections.
Witnessed hydraulic testing of piping and system leakage testing.
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 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

Verified materials through surface, OD, wall-thickness, marking, and MTR checks and inspected material-identification transfer.
Inspected butt-weld, tube-splicing, pipe-to-pipe, nozzle-to-header, and panel-to-header fit-up.
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-pass testing, coil layout dimensions, and coil-module assembly and welding.
Performed PMI on alloy materials and inspected PWHT and post-PWHT appearance.
Inspected dimensions, hydrostatic testing, painting, marking, packing, and final documentation.

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 and PWHT procedures, NDT procedures, drawings, client specifications, standards, and ITPs.
Monitored welder examinations and reviewed welder qualifications.
Checked welding consumables and equipment and performed material receiving, dimensional, orientation, physical, welding-process, and stage inspections.
Performed fit-up inspection and final-weld visual examination and monitored NDT operations and X-ray-film review.
Performed trial-assembly inspection.
Resolved NCRs by coordinating corrective actions with suppliers and relevant departments.
Prepared final documents, controlled documents, collected and organized quality records, 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 owner’s inspector for hull, outfitting, and piping welding inspection and reviewed NDE reports.
Performed pipe and tank tightness, vacuum, tank-integrity, and outfitting-integrity inspections.
Witnessed hydraulic testing of piping and system leakage testing.
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 for the Site Manager.

SEP 2009 – MAR 2013

Ship Newbuilding

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 material receiving, fit-up, dimensional, and visual inspections in accordance with ABS rules.
Performed workshop patrol inspections, reported 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 a Romania shipowner representative and ABS surveyor during block and erection inspections according to the ITP and translated comments for the product department.
Recorded shipowner and surveyor comments, coordinated reinspection, and followed comments through final close-out.
Issued NCRs, monitored corrective actions, and completed NCR close-out.
Prepared weekly reports covering schedule attainment, production yield, and outstanding issues.

Summary

Education

Qualifications and Training

Codes & Standards

Work Experience

Projects

Skills

Commodities