Олександр

Oleksandr Krasnonozhenko
QA Engineer
Kropyvnytskyi, Ukraine [відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація»)
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Profile Testing Techniques
QA Engineer with 7+ years of experience in testing web and mobile Equivalence Partitionin g

applications. Skilled in functional, regression, and exploratory testing, Boundary Value Analysis

with strong expertise in identifying edge cases and validating Decision Table Testing

complex business logic.
State Transition Testing

Error Guessing

Experienced in healthcare, fintech, marketplace, and real-time
Checklist-based Testing
systems. Strong focus on product quality, user experience, and cross-
platform consistency.
API Testing

Hands-on experience validating AI-driven features, including analysis R EST API testing using Postman

of LLM-based outputs, ensuring consistency, correctness, and Working with Swagger

alignment with business rules. Actively using AI tools (e.g., ChatGPT) Authentication (Bearer tokens)

in daily QA workflows for test design and exploratory testing.
Basic request chaining
Payments & Integrations
Comfortable working with APIs, backend systems, and modern web
applications. Experienced in requirement analysis, test Payment flows testing (Stripe, Clearent )

documentation, and collaboration within cross-functional teams. Handling edge cases (declined, retries, failures)

Invoice validation
Education Notifications
2024 - 2025 Volodymyr Vynnychenko Central Ukrainian State
SMS/Email delivery testin g

University
DND (Do Not Disturb) logic validation

Master’s Degree, Education/Pedagogy Async behavior validation (delays, retries, failures)
2016 - 2020 Central Ukrainian National Technical University Data & Logic Validation
Master’s Degree, Computer Engineering Cross-platform consistency ( Web vs iOS)

2012 - 2016 Kropyvnytskyi Engineering College Duplicate request handling

Race condition detection

Associate Degree, Computer Systems & Networks
Complex business logic validation
Languages Tools
Ukrainian — Native J ira/ClickUp

English — Upper-Intermediate Postman/Swagger

Charles Proxy/Proxyman

Key Skills BrowserStack/LambdaTest

Testing Skills TestRail/Cucumber Studio/BrowserStack Test Management

Chrome DevTools
Manual Testin g

Web Testing:

Technical
Cross-browser Testing (Chrome, Safari, etc.)
R EST API, HTTP, Client-server architecture

Responsive Testing
Basic SQL (data validation, debugging, query analysis)

Advanced debugging using Chrome DevTools (Network, Basic HTML/CSS/JavaScript
Console)
Soft Skills
HTTP status validation (4xx, 5xx error analysis)

Attention to Detai l

Mobile Testing:

Critical Thinking

App Lifecycle Testing (Background / Foreground)

Strong Analytical Skills

Network Interruption Testing

Clear Communication

Basic crash analysis using logs

Problem Solving

Regression Testing

Ownership & Responsibility

Exploratory Testing

Team Collaboration

Smoke and Sanity Testing

Adaptability
Functional Testing

UI/UX Testing

Release testing

Requirement analysis (Grooming participation)

Risk-based testing approach (prioritizing critical flows)
Work Experience

2023 - 2026 QA Engineer - Aesthetic Record (Healthcare Platform)
Writing and maintaining structured test cases

Testing complex appointment workflows (Create/Reschedule/Cancel/No Show)

Validating Patient Portal (auth, sessions, profile, edge cases)

Testing payments (Stripe, Clearent, invoices)

Verifying notifications (SMS/Email, DND logic)

Cross-platform testing (iOS + Web)

Deep edge-case analysis and regression testing

Validated AI-driven ChartSmart feature (LLM-based), including transcription-to-note conversion and output formatting

Verified accuracy and consistency of generated medical notes against business rules and input data

Identified edge cases in AI outputs (missing context, formatting issues, incorrect mappings)

2022 - 2022 QA Engineer - Confidential Project (Marketplace Platform)
Tested product listing, search, and filtering logic

Validated API responses and data integrity

Performed UI testing across user flows

Ensured consistency between UI and backend

2022 - 2023 QA Engineer - Good Face Project (Healthcare/Data Platform)
Tested data-driven UI and API responses

Validated search and filtering logic

Ensured data consistency across the system

2022 - 2022 QA Engineer - Confidential Project (Sports Analytics Platform)
Tested complex calculation logic

Performed exploratory testing for edge cases

2021 - 2022 QA Engineer - Bizzabo (Event Management Platform)
Worked on a SaaS platform for event management and attendee engagement, supporting large-scale virtual and hybrid events.

Tested event management flows (sessions, attendees, speakers)

Validated UI/UX and business logic across features

Created and maintained test documentation

Collaborated with developers and product team

Performed regression and release testing

2018 - 2021 QA Engineer - TeeVid (Video Streaming Platform)
Worked on a video production and virtual event platform that combined a presentation editor, built-in video streaming, and event
management tools. The platform supported real-time communication, including SIP-based calling, enabling seamless integration of
video, audio, and interactive content during live events.

Tested video/audio streaming and real-time communication flows

Validated SIP-based calling functionality (call setup, connection stability, edge cases)

Tested presentation editor (slides, layouts, dynamic content updates)

Verified integration between presentation layer and live streaming

Tested event management features (sessions, scheduling, speakers)

Investigated issues related to latency, reconnections, and media delivery

Performed regression testing for core platform functionality

2018 - 2019 QA Engineer - Raiz (Fintech)
Tested financial transactions and portfolio logic

Validated onboarding and payment flows

Worked with sensitive financial data