Contact information

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Work experience

QA engineer

from 10.2025 to now (9 months)

Technical QA Engineer with a strong focus on system architecture, database integrity, and AI-driven development workflows. Unlike traditional manual testing, I build my own products, design complex DB schemas, and leverage AI to accelerate the SDLC. My background in complex business logic (ERP systems) allows me to identify critical edge cases and bridge the gap between technical requirements and product quality.

​Current Project: YJH (Your Job's Here) — Version 2.0
​Leading the evolution of an open-source ecosystem, focusing on scalability and performance.
​Tech Stack Migration: Transitioning the platform to Python and PostgreSQL to handle complex data structures and high-load scenarios.
​AI-Driven Development: Managing the full development cycle using advanced AI prompting for code generation, debugging, and automated test-case logic.
​Architecture Redesign: Overhauling the 10-module system to ensure seamless integration between project management and QA documentation tools.
​Database Testing: Verifying complex data migrations and ensuring referential integrity within a PostgreSQL environment.
​Key Projects & Experience

​YJH (Version 1.0) — Open-source Platform
​Full-Cycle Testing: Acted as the sole Architect and Lead QA for an alternative to Jira/TestRail/Confluence.
​DB Design: Designed a database architecture consisting of 35 tables, ensuring logical consistency across all functional modules.
​API & Web Verification: Performed deep API testing using Postman (JSON) and validated front-end behavior via Chrome DevTools. Used SQL (SQLite) for back-end data verification.

​Arma Reforger Game Server
​Load & Stress Testing: Conducted stability testing under high player density to identify performance bottlenecks.
​Log Analysis: Analyzed server-side logs to troubleshoot synchronization errors and network latency issues.

​Jimi AI Assistant (Alpha)
​AI Logic & UX Testing: Validated dialogue trees and behavioral scenarios for an AI-powered assistant.
​Scenario Testing: Identified flaws in human-AI interaction and logic inconsistencies in AI responses.

​1C Specialist (5 years)
​Extensive experience with complex business logic and structured data environments. This background enables me to treat software as a system of business processes, significantly improving the quality of functional testing.

Заступник директора

from 09.2016 to 09.2021 (5 years)
АТБ-маркет, Донецьк (Роздрібна торгівля)

Заступник керуючого та ВО деректора

Education

ДонНТУ

Єкономіка та біржова діяльність, Донецьк
Higher, from 2018 to 2021 (3 years)

Knowledge and skills

• Управління персоналом
• Користувач 1С
• MS Excel
• MS Office
• 1С:Підприємство
• Адаптивність
• Ручне тестування
• Написання bug reports
• Написання тест-кейсів
• Ведення документації
• Складання чеклістів
• SQL
• Jira
• Git
• Postman
• TestRail
• CSS
• JavaScript

Language proficiencies

• Ukrainian — fluent
• English — beginner

Additional information

Проект.
https://github.com/YuJinHo-UA/YJH-Your-Jobs-Here-open-source-jira-alternative-qa-platform-github