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Chainarong Mundee

@chainarongmundee

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AI Tester at InsightPRO validating telecom billing data with Python scripts and AI-assisted tools.

Thailand

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What I'm looking for

I'm looking to bring my testing, data validation, and AI-assisted development experience to an AI Tester role.

At InsightPRO, I validate Call Detail Record data across two billing systems for National Telecom Public Company Limited. I developed Python scripts with Antigravity and Codex to check high-volume data across Excel, CSV, and status reports.

I use Postman to provision test data and validate APIs, and Apache JMeter to evaluate performance and system stability. I also investigate duplicate and suspense records, track defects through resolution, and document QA results.

Previously, I tested telecom, POS, web, and mobile applications at YIP IN TSOI & CO., LTD., K. Stone Corporation Co., Ltd., Gosoft (Thailand) Co., Ltd., and 1 MOBY CO., LTD. My work included designing and executing test cases, supporting SIT and UAT, and validating payment and promotional workflows.

Experience

Work history, roles, and key accomplishments

Current

Software Tester

Current

InsightPRO Co., Ltd.

Jul 2026 - Present (4 months)

Validated and compared Call Detail Record (CDR) data across two billing systems, checking bill-run statuses and causes of mismatches. Developed Python scripts with AI-assisted tools to validate high-volume data and executed load tests using Apache JMeter.

Postman JMeter Python AI assisted Development Antigravity Codex CDR Analysis Defect Tracking SQL Excel

Test Engineer

K. Stone Corporation Co., Ltd.

Dec 2025 - May 2026 (5 months)

Executed test cases to validate system functionality and reported defects in the bug tracking system. Tested 7-Eleven promotional modules and Counter Service payment workflows on POS terminals.

Test case execution Defect Tracking POS Testing Promotion Module Test documentation

Software Tester

YIP IN TSOI & CO., LTD.

Mar 2023 - Nov 2025 (2 years 8 months)

Designed and executed test cases, reported and tracked defects, and prepared UAT and ATP testing documents. Tested REST APIs using Postman and prepared test data for SIT, UAT, and production environments.

Test Case Design Defect Tracking Postman REST API Testing UAT ATP Test Data Conditioning SIT

Software Tester (Trainee)

Gosoft (Thailand) Co., Ltd.

Jun 2022 - Feb 2023 (8 months)

Designed and executed test cases, recorded and analyzed testing results, and reported defects in the bug tracking system. Assisted with automation testing at a basic level and supported team members on assigned tasks.

Test Case Design Test Execution Defect Tracking Basic Automation Testing Test documentation

Software Tester (Trainee)

1 MOBY CO., LTD.

Nov 2020 - Apr 2021 (5 months)

Designed test cases and analyzed test results, reported defects in the bug tracking system, and created UAT scripts and user manuals. Tested web applications on iOS and Android platforms and LINE Official Account Manager features.

Test Case Design Test Analysis Defect Tracking UAT Scripts User Manuals Mobile Testing Line OA