Mandatory for this role * 2-3 years of hands-on experience building and deploying AI agents in production — not experimenting with agent frameworks, building demos, or wrapping a single prompt with a tool call. * Demonstrated ownership of multiple agent components: the reasoning/execution loop, the harness (tool-calling, retries, timeouts, session/state management), memory (short-term context + long-term/episodic), the skill or tool registry, planning/task-decomposition, guardrails, and evaluation. * A distinct, verifiable data science or ML background (statistics, modeling, or applied ML) prior to or alongside the agent work - this is a Staff Data Scientist role, not a pure agent/backend engineering role.