Worked on expanding RDMA capabilities in the amzn/rdma-core repository by integrating BNXT-R WR API support and improving PSN/MSN handling. Developed WR API-enabled queue pair creation and implemented WR send operations, including RDMA write, read, and atomic actions, using C and low-level network programming techniques. Enhanced the correctness and organization of PSN/MSN data structures in post_send, addressing various queue types and packet lengths to improve reliability in high-throughput environments. Refactored bnxt_re/lib components to streamline future WR API development, focusing on maintainability and code quality. The work broadened feature parity and production readiness for BNXT-R within the RDMA stack.