• Design and implement core components of Temporal’s OSS replication stack • Build and evolve replication protocols that power: • High Availability namespaces • Cross-cluster and cross-region replication • Migration between Temporal clusters • Develop scalability and reliability features such as: • Multi-cell namespaces • Protocols enabling a single namespace to span multiple clusters • Dynamic split and merge of namespaces based on usage and capacity • Reason deeply about consistency models, ordering guarantees, and failure recovery in replicated systems • Own complex changes end-to-end, from design through implementation, testing, and rollout in OSS and cloud environments • Write clear design documents and code comments that explain protocol behavior, invariants, and tradeoffs • Collaborate closely with Cloud Enablement and other CGS teams to ensure OSS foundations support current and future cloud products • Participate in on-call and incident response related to replication and core system behavior