Teamlead Inżynier QA / Tester

Developed and implemented Python monitoring for key SaaS platform metrics (availability, latency, number of active calls), integrated with Zabbix - reduced incident detection time from 10 minutes to 1 minute. Automated testing of number capacities using SIPP+Python(streamlit) -s for checking registration, calls, and redirections. Reduced manual testing time from 40 hours to 5 hours per week. Created and maintained 10+s and chatbots (Python + Telegram) for automatic log collection, crash alerts, and test data generation, reducing the QA team's manual work by 60%. Improved the coverage of key scenarios from 65% to 92% by analyzing production logs and identifying recurring bugs. Implemented a test prioritization system based on bug frequency and feature criticality - reduced the number of critical bugs in releases by 42% in 8 months. Developed Python services for monitoring API endpoints, collecting response metrics, and then transferring them to Zabbix for OZON and Alfastrahovanie. Created a chatbot for automatic notification of monitoring team events in Telegram - reduced the reaction time from 5 min to 30 seconds.