Sassaf worked on the amzn/rdma-core repository, focusing on enhancing the pyverbs component by addressing a bug in RecvWR initialization. Using Cython and leveraging expertise in low-level and system programming, Sassaf removed a constraint that previously required at least one SGE, enabling RecvWR to support zero-SGE scenarios. This targeted change improved compatibility for RDMA-enabled applications that construct RecvWR with zero SGEs, reducing runtime errors and simplifying integration for user-space components. The work demonstrated careful attention to minimizing risk and maintenance overhead, delivering a focused solution that increased reliability and flexibility for RDMA-based workloads without introducing unnecessary complexity.