At iScale Solution, I improved monitoring for new Hadoop cluster versions, automated performance testing, and streamlined daily operations. I developed automated Kafka rebalancing to remove manual tasks and supported Hadoop clusters, including one with more than 1,500 servers.
At Mail.ru Group, I led a team of SREs maintaining a fault-tolerant, high-load system. By optimizing its architecture, I achieved 99.999% availability for one of Russia's largest classified ad services and managed service migration to Kubernetes.
Earlier, at Yandex, I supported a Hadoop cluster of over 800 servers and developed monitoring and automation for operational tasks. At Vokzal - Infocom, I built the company's internal infrastructure from the ground up and created a custom virtual machine deployment infrastructure.
