• Lead the design and implementation of core components of Temporal’s OSS replication stack, from initial design through rollout and long-term operational ownership. • Design and evolve replication protocols that power High Availability namespaces, Cross-cluster and cross-region replication, Migration between Temporal clusters (cloud ↔ self-hosted, cloud ↔ cloud). • Build scalability and reliability capabilities such as Multi-cell namespaces, Protocols enabling a single namespace to span multiple clusters, Dynamic split/merge strategies based on usage, hot spots, and capacity needs. • Reason deeply about correctness: consistency models, ordering guarantees, idempotency, failure recovery, and safe rollouts of protocol changes. • Drive cross-team alignment with Cloud Enablement and other CGS teams to ensure OSS foundations support current and future cloud products. • Author high-quality design docs that clarify invariants, trade-offs, failure modes, and operational playbooks for complex changes. • Raise engineering standards through reviews, mentorship, and technical leadership—improving correctness testing, fault injection, and incident readiness. • Participate in on-call/incident response related to replication and core system behavior, helping build durable fixes and prevention mechanisms.