Konstantyn

Konstantyn Hertsev - QA Engineer
Kharkiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @kostikGR

Summary
QA Engineer with extensive experience in manual and automation testing of web and mobile
applications. Proficient in test case design, API testing, requirements analysis, and cross-platform
testing. Skilled in modern testing tools, databases, performance and security testing, with a solid
understanding of Agile and Scrum. Strong communicator with a proven track record of delivering
high-quality results.

Skills
• Manual Testing, Functional & UI Testing
• API Testing: Postman, REST Assured
• Databases: PostgreSQL, CosmosDB, SQL
• Web Technologies: HTML, CSS, HTTP
• Automation Tools: Selenium, Cypress, Playwright, Appium
• Performance Testing: JMeter, k6
• Security Testing: OWASP ZAP, Burp Suite (basic)
• Version Control & Tools: Git, Jira, Azure DevOps, FileZilla
• CI/CD & DevOps: Jenkins, GitLab CI
• Mobile Testing: Android Studio (logs), iTools (iOS)
• Agile & Scrum methodologies
• Requirement Gathering & Analysis
• Defect Tracking & Reporting
• AI-driven QA Tools: Applitools, Testim, Mabl
• Soft Skills: Root Cause Analysis, Communication, Critical Thinking, Adaptability

Experience
QA Engineer – Testmatick (Oct 2018 – Jan 2019)
Project: Tsvetnoy – Web application helping people find places to relax and shop.
Customer: Ukrainian company | Team size: 7
Achievements: Wrote test cases, performed UI testing, collaborated on documentation.

QA Engineer – RyDoo (Jan 2019 – Jan 2021)
Project: RyDoo – Cross-platform web and mobile (Android/iOS) application for managing expenses
and events.
Customer: Belgian company | Team size: 18
Achievements: Designed test cases, performed API testing with Postman, documented workflows,
and ensured clear communication across teams.

QA Engineer – Fant4c (Jan 2021 – Aug 2025)
Project: Fant4c – Web application allowing customers to design and order unique products.
Customer: Israeli company | Team size: 14
Achievements: Created and executed test cases, performed API testing (Postman), worked with
CosmosDB and PostgreSQL, analyzed test results, ensured documentation accuracy, and
practiced Scrum and Agile.

Education
2019 – QA Courses, SourceIT
2024 – Automation QA Courses, RobotDreams