Danny Lee

Danny Lee is an Agent Engineer at Sierra. Prior to Sierra, he was a software engineer at Google & Meta, working on products like YouTube in the Living Room & Quest VR. Danny holds a degree in Computer Science from UC Irvine.

Posts by Danny Lee

Gradient mixed colors, voice latency icons

Engineering low-latency voice agents

Latency shapes whether a voice agent feels human or robotic. Here’s how Sierra reduces it across every stage of the speech-to-speech pipeline.

9 October 2025

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