Software Engineers Are Becoming 'Agent Fleet Engineers' as AI Coding Agents Scale Up

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A software engineer describes a shift in their role from writing code directly to managing coordinated fleets of AI agents that build and ship software. The author coins the term 'fleetcoding' for this practice and the title 'agent fleet engineer' for those who do it. Currently overseeing ten agents, the goal is to eventually scale to ten thousand, which requires infrastructure for dispatch, routing, capacity limits, and automated verification of results. The author notes that most engineering effort now goes into confirming that agents actually completed tasks correctly, not just trusting their self-reported outcomes. Failures at this scale are described as transit-system problems — coordination and infrastructure breakdowns — rather than individual coding errors.

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