Demian

Demian
Kalinchuk
Automation QA
Engineer
Hi everyone, I'm a Senior Automation QA Engineer with
5+ years of experience in designing and implementing
test automation frameworks for Web, API, Mobile, and
backend services. Strong expertise in Java & JavaScript,
and modern QA tools. Proven track record of building
automation solutions from scratch (UI, API, performance,
and integration), integrating them into CI/CD pipelines, and
optimizing performance/security testing. Adept at mentoring
QA engineers while maintaining a deep technical focus.
Known for driving workflow transformations that accelerate
development speed and product quality. Possess theoretical
knowledge of end-to-end QA flows in FinTech and Gambling
domains, including payment systems, wallets, and transaction
validation.

Employment History Details
Head of QA at IT Step Computer Academy Kraków, Poland
NOVEMBER 2023 — PRESENT [відкрити контакти](див. вище в блоці «контактна інформація»)
• Defined and executed QA strategy, reducing escaped defects by 35% and [відкрити контакти](див. вище в блоці «контактна інформація»)
increasing test coverage by 50%. Nationality
• Designed and implemented a custom K6 script generator that builds
Ukrainian
performance test scripts directly from Swagger/OpenAPI specifications —
reduced setup time by 70% and enabled consistent load testing across
projects.
• Integrated K6 + Grafana dashboards into the QA workflow, providing real-time
Links
performance insights and preventing bottlenecks before production. My GitHub
• Developed frameworks for UI automation based on Cypress and Playwright, Linkedin
ran comparative analysis, and selected Playwright as the primary solution.
This accelerated automation development by 45% and introduced automated
reporting with Allure/ReportPortal. Skills
• Developed a Java + Spring Boot testing framework with GraphQL and
TestContainers for integration tests, enabling reliable backend validation and Java + Maven + TestNG/JUnit
containerized test environments. + Selenide/Selenium + Log4J
• Implemented and integrated common Java packages into the development
CI/CD (GitLab/Github +
and QA process, deployed them in CI/CD (GitLab), and enabled developers
Jenkins)
to accelerate implementation using ready-made reusable imports.
• Established CI/CD pipelines with GitLab/Jenkins, enabling nightly regression Appium + Appium Inspector
runs and cutting QA feedback loops from days to hours.
 • Optimized QA–Dev collaboration by establishing structured communication JS + Jest + Mocha + Chai +
and reporting, reducing bug reopening rate by 30%. Protractor

TL Automation Quality Assurance at IT Step Computer K6 + K6 Studio + Grafana
Academy
MARCH 2023 — NOVEMBER 2023 Playwright/Cypress + JS
(UI/API)
• Developed modern API automation framework (Java + REST Assured,
Postman collections) that accelerated test development by 50%, enabling Agile methodology expertise
faster delivery of automated coverage.
• Built Mobile Automation Frameworks using Appium (Java + Selenide) and Software testing tools
WebdriverIO (JS), reducing manual regression by 60% and accelerating proficiency
release readiness.
• Implemented the AltTester framework for Unity projects, helping the Performance testing
development team optimize workflows and accelerating feature delivery. knowledge
• Standardized reusable automation libraries across teams, cutting framework
maintenance effort by 35% and improving scalability. ReportPortal / Allure
• Introduced structured onboarding & mentoring, reducing junior QA ramp-up
time from 2 months to 3 weeks. REST Assured
• Collaborated with DevOps team to implement Selenoid UI tool for Web and
Postman
Mobile (VNC mode), enabling live debugging and reducing time to resolve
automation issues. Charles Proxy
Automation Quality Assurance Engineer at QA Madness Doker/YAML (Read & Write)
JANUARY 2022 — MARCH 2023
• Built UI, API, and Mobile automation frameworks from scratch, achieving 80% Uniti + AltTester
automation coverage in the first 6 months using Java + Selenide/Selenium.
• Automated REST API testing with REST Assured, reducing manual API testing Conflict Resolution
effort by 50%.
Strategic planning
• Conducted performance testing with JMeter, identifying bottlenecks and
reducing critical incidents in production by 40%. Team Leadership

Database management
Education SQL/NoSQL
Master's degree in systems analysis at Cherkassy State
Cucumber
Technology University
SEPTEMBER 2018 — FEBRUARY 2020 GraphQL

Bachelor degree in computer science at Cherkassy State Fintech
Technology University
SEPTEMBER 2016 — JULY 2018 Gaming / Gambling

Courses Languages
Testing and analysis of project security at ITStolytsa English
FEBRUARY 2025 — APRIL 2025
Ukrainian

Russian

Polish

Hobbies
Sports, travelling, learning
new things, games, meeting
friends, and relaxing in nature.