During August 2025, this developer contributed to the ydb-platform/ydb repository by implementing Arrow Schema Conversion to NYT::NTableClient::TTableSchemaPtr, enabling seamless interoperability between Apache Arrow schemas and YDB’s internal table schema format. The work involved developing helper mappings to translate simple, list, struct, and map Arrow types into corresponding YDB logical types, ensuring accurate schema representation. Comprehensive unit tests were added to validate conversion correctness and handle edge cases, supporting robust data ingestion and schema evolution. The project was executed using C++ and leveraged both Apache Arrow and the YDB SDK, focusing on reliability and maintainability in schema conversion workflows.