Ірина

IRYNA BESSARAB
QA Engineer

[open contact info](look above in the "contact info" section) Ukraine
[open contact info](look above in the "contact info" section) LinkedIn: [open contact info](look above in the "contact info" section)

ABOUT ME
QA Engineer with 5+ years of experience delivering high-quality web and native mobile applications
across e-commerce, FinTech, and EdTech products.
Experienced in owning end-to-end quality throughout the Software Development Life Cycle, from
requirements analysis and risk assessment to release validation and production verification.
Strong background in API, database, web, and mobile testing with a product-oriented mindset,
combining analytical thinking, technical investigation, and close collaboration with cross-functional
teams to deliver reliable, user-focused software.

PROFESSIONAL EXPERIENCE
OKwine | Jan 2026 – Jul 2026 Quality Assurance Engineer
Ensure end-to-end quality of a large-scale e-commerce platform across web and native mobile
applications throughout the Software Development Life Cycle.
Define testing scope for new features by identifying quality risks and selecting appropriate
testing approaches based on release priorities.
Perform functional, regression, exploratory, integration, API, usability, and release testing for
customer-facing functionality.
Participate in backlog refinement, sprint planning, and requirements reviews, identifying edge
cases, improving acceptance criteria, and providing QA feedback before development begins.
Design and maintain test plans, test cases, release checklists, and exploratory testing scenarios
aligned with business requirements and release goals.
Validate REST APIs using Postman by verifying business logic, request-response flows,
backend integrations, HTTP status codes, and error handling.
Execute SQL queries to verify database integrity, business rules, and backend data consistency.
Perform native mobile testing on iOS and Android using Xcode, Android Studio, Charles Proxy,
and Chrome DevTools to validate application behavior, network traffic, and platform-specific
functionality.
Conduct release readiness validation, production verification, bug triage, and root cause analysis
to support stable software releases.
Collaborate closely with Product Managers, Developers, Designers, Business Analysts, and QA
Engineers to improve product quality, refine requirements, and enhance user experience.
Mentor a Junior QA Engineer by reviewing test cases, improving bug reports, sharing testing
best practices, and supporting onboarding.
 sBase | Mar 2020 – Jan 2026 Quality Assurance Engineer

Performed comprehensive manual testing of client-server web applications throughout the
Software Development Life Cycle.
Executed functional, regression, exploratory, usability, integration, acceptance, end-to-end, and
cross-browser testing while ensuring compliance with business requirements and acceptance
criteria.
Validated REST APIs using Postman and SQL (MySQL), verifying business logic, request-
response flows, backend integrations, and database consistency.
Created and maintained test plans, test cases, checklists, and defect reports supporting efficient
release cycles and predictable software delivery.
Participated in backlog refinement, sprint planning, sprint reviews, and retrospectives while
collaborating closely with developers, QA Engineers, Product Owners, and Business Analysts.
Identified quality risks during requirements analysis, improving feature quality before
implementation and reducing defects discovered during later testing stages.
Performed release validation and production verification before software deployments.
Maintained and expanded a Selenium regression suite, reducing regression execution time from
approximately 8 hours to 2 hours while increasing automated test coverage and improving
release efficiency.
AltexSoft | Jul 2018 – Sep 2018 Trainee Mobile Software Developer
Developed a mobile application using C#, .NET, Xamarin, and Objective-C as part of an early-
career development internship.

CORE QUALIFICATIONS
Testing
End-to-End Testing • Web Testing • Native Mobile Testing (iOS & Android) • Functional Testing •
Regression Testing • Integration Testing • Exploratory Testing • Cross-browser Testing • Cross-
device Testing • Usability Testing • Acceptance Testing • Release Testing • UX/UI Validation •
Localization Testing • Risk-based Testing
API & Backend
REST API Testing • Client-Server Architecture • HTTP/HTTPS • Request-Response Validation •
Postman • Swagger • SQL (MySQL, PostgreSQL) • JSON • XML
QA Process
Requirements Analysis • Requirements Review • Test Strategy • Test Planning • Test Design • Test
Documentation • Risk Assessment • Release Validation • Production Verification • Root Cause
Analysis • Bug Triage • Defect Reporting • SDLC • STLC • Agile (Scrum)
Automation
Playwright • Selenium WebDriver • JavaScript • TypeScript
Tools
Charles Proxy • Chrome DevTools • Android Studio • Xcode • JIRA • Confluence • TestRail • Jenkins
• Git • GitHub • GitLab • Navicat • DBeaver
EDUCATION
Mykhailo Ostrohradskyi National University | 2018 – 2019
Master's Degree — Applied Mathematics and Informatics
Mykhailo Ostrohradskyi National University | 2014 – 2018
Bachelor's Degree — Computer Science

COURSES & CERTIFICATIONS
Client-Server Architecture & API Testing | 2024
QA Engineer Course — AltexSoft | 2019
.NET Technology Course — AltexSoft | 2018