SoftwareDevelopmentEngineer,ElastiCache

This is an opportunity to join one of AWS's most foundational and high-impact engineering teams — the Data Plane team within Amazon ElastiCache and MemoryDB. We own the core in-memory engine that powers millions of customer workloads: the data path, durability layer, replication protocol, snapshot system, and advanced data structures. Our work sits at the intersection of systems programming, database internals, and performance engineering — every microsecond matters when you're serving the world's most latency-sensitive applications. If you've ever found yourself deep in a conversation about write-ahead logs, copy-on-write fork semantics, lock-free data structures, or memory allocator design — and you want to apply those ideas to a system handling millions of operations per second at cloud scale — this team is where you belong. We build the engine behind Amazon MemoryDB, the only Valkey-compatible database that delivers in-memory speed with Multi-AZ durability. We're not just running an open-source cache; we're extending Valkey with novel capabilities — durable replication, active-active conflict resolution, full-text and vector search — while maintaining the sub-millisecond latencies our customers depend on. Our customers include Disney+, Snap, Zoom, Lyft, Airbnb, and hundreds of thousands of other AWS customers who trust us with their most performance-critical workloads. You'll work in C/C++ at the lowest levels of the stack, solving problems in memory management, I/O optimization, replication protocols, and distributed data systems — all in production at massive scale. Key job responsibilities As a Software Development Engineer on the Data Plane team, you will take on broad ownership of the core engine that sits at the heart of ElastiCache and MemoryDB. Your core responsibilities will include: - Designing and building the next-generation in-memory database engine, delivering sub-millisecond latencies and millions of operations per second to the world's most deman