Josh Shapiro

I'm Head of Applied Research at Tonal, a company that builds an AI-powered home gym.

I lead research and development across Tonal's machine learning projects: multimodal LLMs, generative personalized programming, predictive strength modeling, and real-time weight calibration algorithms.

Previously, I worked at Kensho as a Machine Learning Engineer developing multimodal document understanding models. Before Kensho, I spent five years at SiteSpect leading data engineering.

Essays

Other Writing

Links