I specialize in testing web systems and APIs, while also having practical experience developing integrations between CRM platforms. Working with APIs has been the core of my work: I tested, debugged, and implemented CRM-to-CRM integrations for the Forex vertical, ensuring accurate transmission of leads, client data, and conversions.

Within QA, I perform:

manual testing of backend features and API endpoints;

creation and execution of test cases;

boundary-value testing, negative scenarios, and error-handling checks;

log analysis, in-depth request inspection, bug investigation, and reproduction;

basic security checks (intercepting requests, analyzing vulnerabilities, validating access controls and data integrity).

My integration experience includes:

designing and testing data-exchange logic via REST API;

validating synchronization accuracy between different CRM platforms;

optimizing data-processing pipelines and traffic routing;

working with API technical documentation and managing integrations end-to-end.

I also have hands-on experience in traffic arbitrage (gambling vertical, Facebook Ads), which gave me a strong understanding of lead flows, attribution, and conversion tracking - skills that directly enhance QA activities related to marketing and CRM systems.I quickly learn new documentation, approach tasks systematically, and prioritize data accuracy, system stability, and predictable application behavior.