Dmytro

Dmytro Komisarov
Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

QA Engineer | Manual Testing | Automation Testing (UI, API) | Agile |
Casino & AdTech Industry

Summary
Results-driven QA Engineer with 7+ years of hands-on experience testing complex high-load
systems, mainly in the casino and ad-tech domains. Skilled in designing comprehensive test
strategies, identifying critical bugs, and improving product quality through manual, automation
and API testing. Strong communication, mentoring, and cross-functional collaboration skills.

Key Skills
Area Tools / Tech
Testing Types Functional, Regression, Smoke, Sanity, Integration, API,
Exploratory, UAT, A/B
Test Design Techniques Equivalence Partitioning, Boundary Value, Decision Table, State
Transition, Pairwise
API Testing Postman, ReadyAPI, Swagger, JSON, REST, SOAP
Manual Testing Cross-browser testing, Mobile Testing, UI/UX validation
Automation / Performance PyCharm, Selenium WebDriver, Playwright, Cypress, JMeter, k6
Bug Tracking Jira, Trello
Databases & Cloud Data SQL Server, MySQL, Azure SQL Database, Microsoft Azure
Tools Storage Explorer
Development Models Agile (Scrum, Kanban), Waterfall
Languages JavaScript, TypeScript, SQL, Python, Java
Web Debugging Chrome DevTools, Firefox DevTools, Fiddler, Wireshark,
Postman Console, BrowserStack DevTools
Soft Skills Mentorship, Detail Orientation, Communication

Experience

Plan A Technologies – QA Engineer
July 2020
• Created test plans, suites, and test cases based on business and system requirements
• Executed manual/automation and API tests for backend/admin/user flows
• Identified and documented critical bugs, collaborated with developers to ensure
resolution
• Participated in sprint planning, reviews, and daily stand-ups
 • Mentored junior QA engineers and improved onboarding documentation
• Verified features against User Acceptance Criteria (UAC) and demonstrated results in
sprint demos
• Tech Stack: Postman, JMeter, SOAP, Selenium WebDriver, Playwright, MSSQL, Chrome
DevTools, Jira, Scrum, Microsoft Azure Storage Explorer, Cross-browser testing, UI/UX validation

DeepCode – QA Engineer
April 2019 – July 2020
• Performed manual, regression, and exploratory testing
• Validated API responses and database integrity
• Reported bugs and tracked them through Jira workflow
• Tech Stack: MSSQL, Postman, ReadyAPI, JMeter, Jira, Scrum, Cross-browser testing,
UI/UX validation

Native Ads, Inc. – QA Engineer
May 2014 – April 2019
• Verified performance and ad integration logic
• Supported large ad tech integrations ensuring transparency for publishers
• Tech Stack: MSSQL, Postman, Fiddler, Wireshark, Jira, Scrum, Cross-browser testing,
Mobile Testing, UI/UX validation

AdManage – QA Engineer
June 2008 – April 2014
• Manual testing of UI, API, reporting, ad placements
• Suggested UI/UX improvements based on user feedback
• Tech Stack: MSSQL, Postman, Fiddler, Wireshark, Jira, Scrum

SCIENTIFIC AND PRODUCTION ASSOCIATION "RIST" LLC – CNC Senior Programmer
August 2007 – October 2009
• Developed and maintained CNC software and documentation

MOTOR SICH JSC – CNC Programmer
August 2003 – August 2007
• CNC code and machine setup documentation

Education
Zaporizhzhya National Technical University
Bachelor of Science in Computer Science Engineering
September 1998 – June 2003

Languages
• English — Intermediate (B1), improving speaking skills
• Ukrainian / Russian — Native
Key Achievements
• Reduced post-release time check by 75% by automating post-deployment end-to-end
checks, ensuring immediate detection of critical issues.
• Cut promotional campaign validation time by 60% through developing automated UI
tests for the casino marketing system.
• Automated the entire reward verification process, eliminating up to 3 hours of manual
testing per release cycle.
• Designed and executed performance testing scenarios that uncovered critical defects in
the bonus distribution mechanism, preventing potential financial losses.
• Designed load tests to ensure system stability under peak traffic conditions.
• Reduced database processing time from several hours to under 5 minutes for large
datasets by integrating performance testing insights with Azure Functions optimization.
• Trained junior QA specialists in Postman and JMeter, boosting team productivity and
reducing onboarding time by 50%.
• Authored detailed project documentation in Confluence, accelerating onboarding of
new team members and increasing QA efficiency by 30%.