Сергій Леськів
Запропонуйте Сергію роботу над вашим наступним проєктом або зареєструйте профіль фрилансера і починайте заробляти просто зараз.
Рейтинг
Резюме
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.
Навички та вміння
Програмування
Послуги
Робота з текстами
Портфоліо
-
5000 UAH Full QA Testing of E-commerce Platform (Web + Mobile + API)
Тестування та QAPerformed full-cycle QA testing of an e-commerce platform, including frontend, backend, and mobile validation.
Scope of testing:
… * Functional testing of core flows: registration, login, product catalog, cart, checkout
* Payment validation (price consistency between UI and API)
* API testing using Postman (REST endpoints, validation of responses, status codes)
* Database validation using SQL (data correctness, orders, user data)
* Cross-browser testing (Chrome, Safari)
* Responsive testing (desktop, tablet, mobile)
* Mobile testing (Android / iOS)
* UI/UX validation against expected behavior
Types of testing performed:
* Smoke testing
* Regression testing
* Exploratory testing
* Negative testing (edge cases, invalid inputs)
Bug reporting:
* Created structured bug reports (steps to reproduce, expected vs actual result, severity/priority)
* Identified issues in:
* payment flow
* data inconsistencies
* UI rendering
* API responses
Tools used:
* Postman (API testing)
* Chrome DevTools (network, console)
* SQL (data validation)
* Jira (bug tracking)
* TestRail (test documentation)
Result:
* Improved system stability before release
* Identified critical issues in checkout and API logic
* Increased overall product quality and reliability
Активність
| Останні ставки 5 | Бюджет | Додано | Терміни | Ставка | |
|---|---|---|---|---|---|
|
Тестування андроїд додатку
5000 UAH
|
|||||
|
Потрібен тестер для двух нових інструментів веб-ресурсі
5000 UAH
|
|||||
|
Test TV remote iOS app
2000 UAH
|
|||||
|
Повне тестування інтернет-магазину косметики (frontend + адмінка)
12 000 UAH
|
|||||
|
Тестування верстки сторінок інтернет-магазину (UI/UX, адаптивність)
6000 UAH
|