10/08/2026 updated

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Data Test Engineer / Data Quality Engineer - Banking & Financial Data

Guangxi, China
Worldwide
Master of Business Administration (MBA, English-taught)
Guangxi, China
Worldwide
Master of Business Administration (MBA, English-taught)

Profile attachments

Kaihua-Huang-Resume-EN-NoPhoto.pdf

About me

I am a data testing engineer with 5 years of work experience, mainly focusing on the relationship between actual business and data, and paying attention to whether the data quality is good and whether the data architecture is reasonable

Bank ReconciliationBash ShellData MigrationData QualityDatabase TestingLinuxPython (Programming Language)SQL DatabasesOracle 10g/11g
Banking data testing & data quality
Data consistency validation | source-to-target reconciliation |
record-count and record-level difference analysis
Regulatory reporting validation: Credit Reference (Gen-2), EAST 5.0
AML investigation platform data-feedback testing
Data migration testing | post-migration validation against mapping specs
Defect management: root-cause analysis on field mapping and reporting
caliber, tracking to closure
Test strategy, test case design, three-party review, test reporting

Data engineering
ETL development (Kettle, Shell) | stored procedures | data
standardisation
Data warehouse layered modelling (base / subject / application layers)
Wide-table design | source-to-target mapping

Technical
SQL (advanced - complex queries, cross-system reconciliation)
Python (automated validation scripts)
Linux (server operations, log analysis) | MySQL | Oracle | FineReport

Banking domain
Retail & commercial banking data: credit lending, deposits, general
ledger, customer information (ECIF), mobile banking, core banking

Ways of working
Requirement review | test documentation | cross-functional
coordination | remote collaboration with CET overlap




































Experience

Professional experience0 - 5 years
Freelancer since2025

Languages

ChineseNative speakerEnglishGoodThaiGood

Project history

Data System Testing Lead / Contributor - Project A: AML Investigation Platform

Guilin Bank
Led testing of the AML Investigation Platform focusing on faster data feedback. Analysed requirement documents, designed test cases, organised three-party reviews, queried eligible card and ID numbers in core banking and data warehouse, supported Linux server operations and test environment deployment, compared record counts and record-level differences between feedback files and source systems, reported data defects and authored the Operational Manual for Simulating Requests across Investigation Platform Channels.

Data System Testing Contributor - Project B: Credit Reference (Gen-2) Reporting System

Guilin Bank
Responsible for end-to-end data consistency testing across first-time loans, bank acceptance bills, commercial acceptance bills and revolving loans. Initiated business scenarios in the credit system test environment, reconciled reported data calibers against Credit Reference interface documentation, identified caliber deviations and field-mapping issues, defined test scope and approach alongside bank business and development teams, wrote and executed test cases and tracked defects to closure.

Data System Testing Contributor - Project C: EAST 5.0 Regulatory Reporting System

Guilin Bank
Participated in EAST 5.0 regulatory reporting data testing. Defined test scope, approach and plan, wrote test cases and organised case reviews, executed tests and tracked defects to resolution, and validated the completeness, accuracy and timeliness of reported data against regulatory requirements.

Data Test Engineer

Beijing Jieke Zhicheng Technology Co., Ltd. (on-site at Guilin Bank)
Responsible for test delivery across banking data systems covering credit lending, Credit Reference reporting, regulatory reporting, AML investigation and mobile banking. Led testing of 32 data-related requirements across six banking systems, identified and tracked 606 defects, delivered the full test cycle independently including requirement review, test case design, three-party review, data preparation, test execution, defect tracking and report delivery. Extracted test data using SQL to reconcile source and target differences.

Data Migration Test Engineer - Core Banking Replacement

Tangshan Bank
Conducted data research in the early project phase and authored the data migration test plan. Wrote SQL test cases based on mapping specifications and organised case reviews. Built Python scripts to batch-execute SQL test cases and validate post-migration data consistency. Coverage spanned core banking, credit, ECIF and general ledger systems including data migration, functional, performance, dynamic and business continuity testing.

ETL Engineer (Intern)

Qingdao Haisiruike Internet Technology Co., Ltd.
Contributed to data warehouse projects, reviewing data dictionaries and aligning data calibers with source systems. Collected and standardised data from core banking and ECIF systems with Kettle and Shell, loading it into the data warehouse. Classified data by business subject, mapped source-to-target fields and wrote stored procedures to build wide tables.

ETL Engineer (Intern) - Data Warehouse Project

Shandong Weihai Commercial Bank
Joined from the design phase, reviewing data dictionaries and supporting the project manager in mapping source-system data calibers. Synchronised source data with Kettle and transferred sensitive data asynchronously via Shell scripts covering 10+ systems. Standardised data after loading into the warehouse and flowed it to the base layer via stored procedures classified by business subject. Mapped source-to-target fields, wrote stored procedures to build wide tables, aggregated subject data at the subject layer and built reports in FineReport at the application layer.

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