Крістіна

KRISTINA ZHAK
Middle Manual QA Engineer
Ternopil, Ukraine (Remote) [відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація»)

PROFESSIONAL SUMMARY TECHNICAL SKILLS
Middle Manual QA Engineer with 5+ years of commercial experience in testing web-based Testing
SaaS products. Strong background in manual testing, test documentation, requirements
Manual Testing
analysis, defect investigation and release support. Experience working with Playwright Web Application Testing
and TypeScript, alongside AI-assisted tools for test creation and QA workflows. Functional Testing
Regression Testing
Exploratory Testing
End-to-End Testing
PROFESSIONAL EXPIRIENCE UI/UX Testing
Cross-browser Testing
SHELF - Middle Manual QA Engineer Dec 2022 – Jul 2026
API & Backend
Shelf is a SaaS platform for managing and organizing enterprise content and workflows. REST API
The platform supports multiple content types, role-based access control, permissions, GraphQL
document workflows, analytics and integrations with additional applications. Postman
Performed manual testing of complex web-based SaaS applications. Webhooks
HTTP
Tested functional, regression, integration, exploratory and acceptance scenarios.
Client-Server Architecture
Analyzed product requirements and UI/UX designs before and during development.
Created and maintained test cases, checklists and other QA documentation in
Databases & Search
TestRail, Testomat.io and Confluence.
PostgreSQL
Performed REST API testing using Postman and occasionally tested GraphQL
SQL
queries and mutations. Elasticsearch
Validated backend data and business logic using PostgreSQL and SQL queries.
Analyzed application logs and investigated issues using Datadog. Monitoring & Analytics
Tested search functionality and data indexing using Elasticsearch.
Datadog (Log Analysis)
Tested integrations and asynchronous workflows involving webhooks.
Mixpanel
Verified product analytics and user activity events using Mixpanel.
Investigated failed automated tests and updated test code when necessary using
Git. Automation
Reviewed requirements and designs, identifying inconsistencies and potential edge Playwright - basic experience
cases before implementation. TypeScript - basic experience
Used AI-assisted tools, including Codex, to optimize testing workflows, investigate
issues and speed up repetitive QA tasks. Test management & Documentation
Collaborated closely with developers, product managers, designers and other QA
Jira
engineers throughout the development lifecycle. Confluence
TestRail
Testomat.io
TRUJAY - Junior Manual QA Engineer Sep 2020 – Nov 2022 Zipline
Test Cases & Checklists
Trujay is a software company focused on CRM magration and data integration solutions. Bug Reporting & Management
The product helps businesses automate data transfer between vatious CRM platforms.
Created and maintained test documentation, including test cases and checklists. Version Control
Performed manual testing of web applications. Git
Reported, tracked and investigated bugs throughout the testing process. CI/CD
Performed quality checks and validation of migrated data.
Conducted REST API testing using Postman. AI -assisted QA
Performed performance testing.
OpenAI Codex
Collaborated with the development team to investigate and resolve product issues.
Craft Agent

EDUCATION LANGUAGES
Lviv College of Light Industry of Kyiv National University of Technologies Ukrainian - Native
and Design English - Intermediate (B1/B2)
Technician-Technologist, Garment Production 2013 – 2017