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Yaroslav Barai
QA ENGINEER
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Poltava,Ukraine @Dondich LinkedIn

SUMMARY
QA Engineer with hands-on commercial experience testing Mobile apps (iOS/Android) and Playable Ads
(HTML5/WebGL). Skilled in REST API testing (Postman), SQL queries, test design, and bug tracking, with a
strong focus on requirements analysis and clear test documentation. Brings a disciplined, detail-oriented
approach to QA, developed over 4 years at PrivatBank with a rapid promotion track to 2nd-line technical
support under strict KPI metrics.

SKILLS
Testing Types & Approaches: Manual, Functional, Regression, Smoke, Sanity, Exploratory, Mobile
(iOS/Android), Web & API Testing
Test Design: Equivalence Partitioning, Boundary Value Analysis, Pairwise, State Transition, Decision Tables,
Checklists & Test Cases
Tools & Environment: Jira, TestRail, Postman, Chrome DevTools, Git/GitHub, Android Studio (Logcat), Docker
(Basic)
Web & Databases: REST API, Client-Server Architecture, HTTP Status Codes & Payloads, SQL (Queries, Data
Filtering)
Process & Methodologies: SDLC, STLC, Bug Life Cycle, Agile (Scrum, Kanban), Requirements Analysis

PROFESSIONAL EXPERIENCE
QA Engineer | 24play 07/2026 – Present
Testing interactive Playable Ads (HTML5/WebGL mini-games) for mobile
• Poltava, Remote
marketing campaigns across iOS and Android.
Verifying ad network configurations and SDK integrations (Unity, AppLovin,
•

Mintegral).
Executing functional, UI/UX, and regression testing on real iOS and Android mobile
•

devices.
Validating gameplay mechanics, CTA redirects, audio/visual elements, and screen
•

orientation responsiveness (Portrait/Landscape).
Designing test documentation (test cases, checklists) and logging clear bug reports
•

with reproduction steps via Slack and internal team platforms.
QA Engineer | Freelance 05/2026 – 07/2026
Reviewed requirements and performed task decomposition for Web & Mobile e-
• Poltava, Ukraine
commerce platforms
Developed high-quality test documentation: structured checklists, detailed test
•

cases, and priority-based bug reports with a foundational understanding of Test
Planning workflows
Executed test cases in TestRail and efficiently tracked/reported bugs using Jira
•

Applied core test design techniques: Equivalence Partitioning, Boundary Value
•

Analysis, Pairwise, State Transition, and Decision Tables to verify complex business
logic
Inspected client-server communication, validated HTTP network requests, status
•

codes, and JSON payloads utilizing Chrome DevTools and Postman
Executed SQL queries for data filtering, database verification, and back-end testing
•

Managed repositories via Git/GitHub for seamless project tracking
•

Gained a basic understanding of Docker container environment
•

Customer Service Specialist | PrivatBank - A-Bank 02/2021 – 12/2024
System Operations: Consulted clients, presented banking products, and managed
• Poltava, Ukraine
account operations using internal CRM systems.
Performance Excellence: Consistently met and over-executed monthly branch
•

performance targets for credit card issuance, deposit setups, and key banking KPIs
in a high-volume environment.
VIP & Escalation Handling: Managed Gold-tier VIP clients and handled complex
•

remote customer inquiries, ensuring high first-contact resolution rates.
Career Growth: Promoted from 1st-line operator to 2nd-line technical/customer
•

support due to strong analytical thinking, efficiency, and advanced problem-solving
skills.
Quality Assurance: Maintained strict adherence to workflow quality standards,
•

banking protocols, and data privacy regulations.

EDUCATION
Technician for Oil and Gas Preparation and Transportation 09/2013 – 05/2016
Poltava Petroleum Geological Prospecting College of Yuri Kondratyuk, Poltava Poltava, Ukraine
National Technical University

ADDITIONAL EDUCATION
Mate Academy 01/2026 – 05/2026
QA Course (Manual and Automation QA) Poltava, Ukraine

LANGUAGES
English — B1 Intermediate

CERTIFICATES
Link to Certificates

INTERESTS
— Developed strong personal discipline and focus through 6 years of regular, high-intensity boxing training
alongside football, cycling, and winter skiing.