Viktar worked on the wazuh/wazuh-indexer repository, focusing on backend development to enhance search performance and reliability. He enabled the concurrent_segment_search auto mode by default, which reduced latency under concurrent workloads by adjusting default slice counts and improving system configuration. Using Java and YAML, he also updated test configurations to ensure alignment between production and test environments, adding tolerance to correlation value assertions in matrix_stats aggregation tests to reduce test flakiness. Over the course of the month, Viktar’s work provided more predictable performance and streamlined testing, demonstrating depth in search optimization and system configuration within a complex backend environment.