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Vladislav O.

Vladislav O.

QA Specialist

Verified expert

lead
Ukraine
$25/hour
English – Advanced
Ukrainian – Native
Top skills
QA Manual Testing Jira Postman Regression Testing Cross-Browser Testing Test Cases Bug Reports Mobile Testing Swagger
Vladislav O.
QA Specialist

Verified expert

native
Ukraine
$25/hour
English – Advanced
Ukrainian – Native

Meet Vladislav ✨

A Manual QA Engineer with 3.5 years of experience testing web, desktop, and mobile applications across AI, healthcare, marketing, and SaaS domains. Vladislav is skilled in functional, regression, exploratory, smoke, usability, and cross-browser testing, and brings a structured approach to test documentation including test cases, checklists, and detailed bug reports.

He has tested complex AI-powered products including a generative AI character chat platform with multimodal content and message moderation, an AI-powered medical applications ecosystem with semantic search, custom AI agents, and digital pathology tools, and an LLM-driven buying committee detection system with PDF parsing, data aggregation, and analytical dashboards. He also brings solid experience testing marketing content platforms, AI website builders, and large-scale European information web portals.

Vladislav works comfortably in Agile and Waterfall environments, collaborates closely with development teams to reproduce and resolve defects, and ensures quality throughout the full SDLC and STLC. His toolset includes Postman, Swagger, Jira, Trello, Browserling, BrowserStack, DataGrip, and Chrome DevTools.

If you need a QA engineer who can test AI-powered platforms with attention to edge cases, document defects with clarity, and keep quality high across web, mobile, and desktop environments, Vladislav brings the reliability and thoroughness your product needs 🚀

Download the CV

Hard skills

Manual Testing

Black-box Testing

Grey-box Testing

Regression Testing

Sanity Testing

Smoke Testing

Functional Testing

Usability Testing

Cross-Browser Testing

Mobile Testing

Exploratory Testing

Test Cases

Checklists

Bug Reports

SDLC

STLC

Bug Lifecycle

Agile

Scrum

Kanban

Waterfall

API Testing

UI Testing

Tools

Postman

Swagger

Jira

Trello

Browserling

BrowserStack

DataGrip

Chrome DevTools

Git

GitHub

Soft skills

Attention to detail

Analytical thinking

Communication

Team collaboration

Responsibility

Adaptability

Structured mindset

Continuous learning

AI Character Chat Platform

QA Engineer (Manual Testing)
Duration:

0.5 years

Domains:
AI Social Platform Content Generation
Project Description:

Tested a generative AI character chat platform where users create AI characters and receive multimodal responses including images, video, and audio. Developed and maintained test cases and checklists for feature validation, executed functional, UI, usability, cross-browser, mobile, smoke, and regression testing, and documented defects through detailed bug reports.

Tools & Technologies:

Postman, Jira, BrowserStack, Chrome DevTools

AI-Powered Medical Applications Ecosystem

Manual QA Engineer
Duration:

0.5 years

Domains:
Healthcare AI Digital Pathology Generative Multimodal Systems
Project Description:

Tested a suite of AI-powered medical applications including semantic search, custom AI agent configuration, a real-time chatbot, and an SVS file viewer. Conducted cross-browser testing across different environments and network conditions, executed functional and UI testing across multiple applications, and tracked all discovered issues through structured bug reports.

Tools & Technologies:

Jira, BrowserStack, Browserling, Chrome DevTools

AI-Based Buying Committee Detection System

QA Engineer (Manual Testing)
Duration:

0.5 years

Domains:
AI & ML Sales
Project Description:

Tested an LLM-driven AI platform that identifies company buying committees by combining PDF parsing, data aggregation, and automated relationship inference through prompt chaining. Executed functional, exploratory, UI, configuration, usability, and cross-browser testing sessions and logged defects with clear, structured bug reports.

Tools & Technologies:

Postman, Swagger, Jira, Chrome DevTools, DataGrip

Event & Marketing Content Platform

QA Engineer (Manual)
Duration:

0.5 years

Domains:
Digital Marketing
Project Description:

Tested a web platform for creating and managing marketing landing pages across multiple segments including event schedules, article-driven layouts, and conversion-optimized promotional pages. Verified responsive design and cross-browser behavior across devices, and collaborated with developers to resolve discovered defects.

Tools & Technologies:

Jira, Browserling, BrowserStack, Chrome DevTools

AI Website Builder

Manual QA Engineer
Duration:

1 year

Domains:
SaaS
Project Description:

Tested an AI-driven website creation platform featuring integrated e-commerce solutions, automated domain registration, and custom email services. Created test cases and checklists for key platform functionality, executed full regression and smoke testing cycles, and tracked defects through detailed bug reports.

Tools & Technologies:

Postman, Swagger, Jira, BrowserStack, Chrome DevTools

European Information Page

Manual QA Engineer
Duration:

0.5 years

Domains:
Web Development
Project Description:

Tested a large-scale European company information portal spanning 15 million pages. Executed functional, exploratory, configuration, mobile, usability, and cross-browser testing, and documented all identified issues through structured bug reports.

Tools & Technologies:

Jira, Browserling, BrowserStack, Chrome DevTools

Bachelor's Degree in Computer Science

Central National Technical University, Kropyvnytskyi

QA Course

Provider: Academic platform uTest

QA Course

Provider: Academic platform uTest

University Practice

Provider: OnixScademy

University Practice

Provider: OnixScademy
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