Сергій Леськів

I am a Manual QA Engineer with hands-on experience in testing web, mobile, and TV applications, with a strong focus on functionality, data validation, and business logic.

In my daily work, I:

• perform functional, regression, smoke, and exploratory testing
• analyze business requirements and identify edge cases
• test REST APIs using Postman and validate responses
• use SQL to verify data consistency in databases
• work with DevTools (Network, Console) to debug issues
• create and maintain test documentation (test cases, checklists, bug reports)

I have practical experience testing:

• e-commerce platforms (catalog, checkout, payments)
• SaaS and data-driven applications
• mobile apps (iOS, Android)
• TV apps (Apple TV, Android TV)
• content and media platforms
• admin panels and dashboards

I pay strong attention to:

• data correctness (numbers, statuses, time, consistency)
• UI/UX behavior
• edge cases and negative scenarios
• system stability

I also actively use AI tools (ChatGPT, Claude) to improve test coverage, generate edge cases, and speed up analysis.

I am a detail-oriented and responsible QA who focuses not only on finding bugs, but also on improving product quality.