Anastasiia

Anastasiia Tkachenko
QA Engineer (Manual / API / Backend-focused)

Summary
Manual QA Engineer specializing in API and backend-focused
Personal Info testing, with a strong understanding of system behavior, data
Poland ows, and business logic. I work at the intersection of frontend,
[открыть контакты](см. выше в блоке «контактная информация») backend, and data, focusing on quality, stability, and risk
prevention.
[открыть контакты](см. выше в блоке «контактная информация»)
Core competencies:
Nationality
Manual testing of web applications with focus on real user
Ukrainian
scenarios
Date of birth
18.08.1999 REST API testing (GET, POST, PUT, DELETE) and backend logic
validation
Authentication and authorization ows (tokens, access
Links rights, expiration)
Portfolio Negative, edge case, and risk-based testing
Basic SQL for data validation and consistency checks
Clear, structured bug reporting and collaboration with
Skills development teams
API & Backend I am open to long-term cooperation and full-time opportunities,
value continuous learning, and actively seek to expand my
REST API testing knowledge and expertise while contributing to stable, reliable,
and user-focused products.
Business logic validation

SQL
Work Experience
Postman
QA Engineer (Manual), GoldWires (Contract)
DevTools August 2025 - January 2026
Tested REST APIs (GET, POST, PUT, DELETE)
Jira (or similar)
Veri ed authentication and authorization ows (login,
tokens, expiration)
Languages Tested backend business logic (password change, access
rights, restrictions)
English
Worked extensively with negative and edge cases

Russian Analyzed API behavior vs UI expectations
Validated HTTP status codes (200, 400, 401, 403, 404, 422)
Ukrainian Created and maintained test cases and checklists
Identi ed requirement gaps and raised clari cation
Polish questions instead of false defects