Describe the most complex technical tasks you have had to solve in your practice

In my practice as a QA Automation engineer, one of the most challenging tasks was creating a reliable framework for automating tests of a complex web application with dynamic content and asynchronous calls.

Main challenges:

• Handling dynamically changing interface elements that are not always immediately available.
• Synchronizing tests with asynchronous processes to avoid false positives.
• Integrating with CI/CD pipeline for automatic test execution with each deployment.

To solve this, I used explicit waits, Page Object patterns, and also configured reports and logging for quick analysis of results. This helped improve the stability and speed of testing.

Another example is testing an API with unstable behavior, where it was necessary to implement retries and error handling to increase test reliability.