FDE Role to Become Purely Sales? Ex-LlamaIndex Core Member Weighs In

HanchungLee · x · 2026-08-09

Regarding the future trajectory of Field Deployment Engineers (FDEs) in the AI era, Jerry Liu (formerly of LlamaIndex) believes their focus will tightly revolve around evals, post-training, and RL environments. The core responsibilities will evolve into defining business problems, translating them into eval rubrics/environments, and outputting agentic workflows to solve them.

However, Hanchung Lee, currently an FDE at Anthropic, offers a starkly different prediction. He pessimistically points out that constrained by commercial realities, almost all FDE roles will ultimately devolve into sales/implementation engineers or solution architects, which essentially boils down to sales.

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