We are looking for a dynamic, collaborative, and curious Staff Engineer to design, build and operate agent-based systems where agents use composable skills to accomplish end-to-end tasks. You will define AI workflows (planning, tool-use, memory, evaluation, governance), ship production services and APIs, and mentor teams to deliver reliable AI outcomes at global marketplace scale. Responsibilities

Architect agentic systems: plan/execute loops with explicit state; design composable skills; ground with memory and citations. Build AI workflows: orchestrate task DAGs/state machines with retries, DLQ, idempotency, and SLAs. Operate event pipelines: stream on Kafka with backpressure, observability, and failure recovery. Ship services/APIs: expose REST/GraphQL endpoints for orchestration, inference, enrichment, and evaluation. Implement RAG: index, retrieve, rank, and cite with policy guardrails and prompt hardening. Evaluate/govern: offline/online evals, A/B/canary rollouts, audit t...