EY is building a better working world through assurance, consulting, tax, strategy, transactions, data, AI, and advanced technology services. The Senior AI Systems Engineer will own the stateful backbone of EY’s AI-native platform, including data stores, memory tiers, event streaming, durability, consistency, recoverability, and data movement across hybrid and regulated environments. The role also builds and operates streaming and change-data-capture pipelines, supports multi-tenant portability, and provides data lineage infrastructure for governance and AI knowledge capabilities.