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. The team owns the core in-memory engine powering millions of customer workloads: the data path, durability layer, replication protocol, snapshot system, and advanced data structures. Customers include Disney+, Snap, Zoom, Lyft, Airbnb, and hundreds of thousands of other AWS customers who rely on sub-millisecond performance at scale. Key ResponsibilitiesDesign and build the next-generation in-memory database engine delivering sub-millisecond latencies and millions of operations per second. Develop large-scale distributed in-memory storage systems in C/C++, extending open-source Valkey with durability, replication, and advanced data structure capabilities. Build and optimize the durability layer — transaction logging, snapshotting, and replication protocols — enabling Multi-AZ data protection. Design and implement advanced data structures and query capabilities including vector search and full-text search. Drive performance engineering at the systems level — memory allocator tuning, I/O path optimization, and lock-free concurrency. Contribute to active-active replication and conflict resolution mechanisms for globally distributed, low-latency data access. Mentor and grow engineers through code reviews, design feedback, and pairing sessions. Participate in on-call rotations and drive improvements to engine reliability and diagnostic tooling. Manage individual project priorities, deadlines, and deliverables with a high degree of autonomy. Basic Qualifications3+ years of non-internship professional software development experience 2+ years of non-internship design or architecture (design patterns, reliability and scaling) experience 1+ years of software development engineer or related occupational experience 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications using C#, C++, Java, or Perl 1+ years of Object Oriented Design experience Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field Experience programming with at least one software programming language Preferred Qualifications3+ years of full software development life cycle experience including coding standards, code reviews, source control management, build processes, testing, and operations Bachelor's degree in computer science or equivalent 3+ years of professional software development experience; 2+ years of design or architecture experience; 1+ years developing large-scale multi-threaded or distributed applications in C#, C++, Java, or Perl; Bachelor's degree in Computer Science, Engineering, Mathematics, or related field; Object Oriented Design experience.#J-18808-Ljbffr