Skills
Experience Level
Language
Korean
Fluent
English
Fluent
German
Beginner
Work Experience
Founder & Manager at The Cleaning
January 1, 2019 - January 1, 2024Managed daily operations including scheduling, client communication, and quality control. Implemented process improvements and issue-tracking workflow to maintain consistent service quality. Developed strong analytical and organizational skills directly applicable to software testing. Transitioned to QA by applying structured problem-solving, defect tracking, and process efficiency practices.
Founder & Operations Manager at The Cleaning
September 1, 2019 - April 1, 2025Defined and maintained quality standards through operational checklists and workflows, enhancing service reliability and accountability. Analyzed recurring issues using root cause analysis, driving process improvements and reducing defect resolution time by approximately 30%. Coordinated issue resolution with multiple stakeholders to improve service reliability and ensure seamless operations.
QA Engineer – Automation & Testing
March 1, 2025 - PresentAutomated end-to-end UI and API test coverage for authentication and CRUD workflows using Playwright, improving regression coverage by approximately 30%. Combined UI, API, and exploratory testing approaches to improve early defect detection by approximately 20% within an Agile workflow. Validated REST APIs through schema and response assertions across positive and negative scenarios, enhancing backend test reliability and accuracy. Designed reusable test structures and fixtures to improve test stability and reduce maintenance effort by approximately 30%, accelerating defect resolution via JIRA.
Education
High School Diploma at Chungcheongnam-do Office of Education
January 1, 2018 - January 1, 2018Qualifications
TQB Foundation Level
September 1, 2025 - December 7, 2025Playwright API Testing Mastery with TypeScript - Udemy
October 1, 2025 - December 7, 2025ISTQB Certified Tester – Foundation Level (CTFL)
September 1, 2025 - December 31, 2025Playwright API Testing Mastery with TypeScript
October 1, 2025 - December 31, 2025Full-Stack Web Development Bootcamp
September 1, 2025 - December 31, 2025Guide to Confluence | Hands On | For Everyone
October 1, 2025 - December 31, 2025ISTQB Foundation Level
September 1, 2025 - March 8, 2026Playwright API Testing Mastery with TypeScript - Udemy
October 1, 2025 - March 8, 2026TQB Foundation Level
September 1, 2025 - March 8, 2026Playwright API Testing Mastery with TypeScript - Udemy
October 1, 2025 - March 8, 2026Foundation Level - TQB
September 1, 2025 - March 8, 2026Playwright API Testing Mastery with TypeScript
October 1, 2025 - March 8, 2026Industry Experience
Software & Internet, Computers & Electronics, Professional Services, Media & Entertainment
Skills
Experience Level
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