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Founding Systems Engineer for AI Agents (Equity
Job in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-08-22
Listing for:
Jack & Jill
Full Time
position Listed on 2026-08-22
Job specializations:
-
Software Development
AI Engineer (Applied/Software)
Job Description & How to Apply Below
General Catalyst-backed startup is seeking a Founding Engineer to design the core primitives that enable AI agents to communicate and operate as independent entities. You’ll build high-throughput email infrastructure and APIs, owning projects end-to-end for a rapidly growing user base in San Francisco.
This is a systems-heavy role at a YC S25 company defining a new infrastructure category. You’ll bridge modern AI capabilities with traditional messaging protocols to create a scalable agent
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