During September 2025, this developer enhanced the ClickHouse/ClickHouse repository by implementing erasure coding support for HDFS pread operations. They updated the libhdfs3 submodule to a newer revision and integrated PositionStripeReader.cpp into the build system using CMake, enabling EC-aware reading paths. Working primarily in C++, they focused on improving data access reliability and throughput in HDFS clusters that utilize erasure coding. Their work addressed the challenge of resilient and efficient data reads in distributed storage environments, demonstrating a solid understanding of build systems, HDFS internals, and erasure coding techniques within a complex, production-grade codebase.