Costa Core
@costacore
I test high-load banking, payment, and mobile systems across APIs, workflows, databases, and automation.
UkraineWhat I'm looking for
I'm testing 3D-Secure 2.x payment authentication at PrAT UPC, validating complex security flows, challenge forms, asynchronous token passing, and processing-center transaction states.
Previously at Raiffeisen Bank, I supported government bonds, insurance, and customs-declaration products. I created QA documentation from scratch, tested mobile and backend integrations, and validated long-running BPMN workflows in Camunda Cockpit.
My work spans REST APIs, Kafka messages, PostgreSQL integrity checks, and backend log analysis in Grafana and Kibana. I use Postman, DevTools, Jira, Confluence, Git, and Zephyr throughout the testing lifecycle.
I've also built and maintained mobile E2E automation with Java and Selenide, and I contribute to a Python Playwright framework for 3D-Secure testing. With over seven years in banking and payment processing, I focus on reliable business logic and integrations.
Experience
Work history, roles, and key accomplishments
QA Engineer / QA Analyst
PrAT UPC
May 2026 - Present (3 months)
Analyzed and tested complex architectural requirements for 3D-Secure 2.x card security protocols. Performed functional testing for authentication flows and participated in building an automated testing framework using Python (Playwright).
Education
Degrees, certifications, and relevant coursework
Vadym Hetman Kyiv National Economic University
Master's Degree, Financial Management
Master's degree in Financial Management from Vadym Hetman Kyiv National Economic University.
National Aviation University
Bachelor's Degree, Electromechanical Engineering
Degree in Electromechanical Engineering from National Aviation University.
Tech stack
Software and tools used professionally
Availability
Location
UkraineAuthorized to work in
Job categories
Skills
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