Amazon seeks a Software Development Engineer for the Data Plane team on ElastiCache and MemoryDB. You will own the core in-memory engine, durability, replication, and advanced data structures, delivering sub-millisecond latency at cloud scale. You will work in C/C++ at the engine level, focusing on memory management, I/O optimization, replication protocols, and distributed data systems, collaborating across teams to ship resilient, high-performance deployments.