Worked on the ytsaurus/ytsaurus repository to enhance the reliability of its Go SDK by addressing a critical bug in the queue producer session creation process. The solution involved defensive programming in Go, specifically initializing nil options to prevent a nil-pointer panic when interacting with the CreateQueueProducerSession API. This change improved backend stability for queue-based messaging by ensuring safe defaults and aligning with public API expectations. The update included a detailed changelog entry for traceability and was delivered through a code review and pull request workflow, demonstrating proficiency in Go, backend development, and robust error handling within production systems.