Staff Engineer, Durable AI Agent Systems

Ego AI, a YC-backed applied AI research lab, is hiring to own and evolve the agent harness and durable execution infrastructure in San Francisco. You will design the core agent loop, ensure durability through checkpointed sessions, and build robust compaction and memory strategies for long-horizon tasks. Join a small, fast-moving team tackling real-time conversational systems, with a focus on extensible tool registries, per-user durable agents, and clean, testable APIs. J-18808-Ljbffr