Yon-seo Kim is a Staff Software Engineer in San Francisco with 10+ years building production ML platforms and scalable backend systems at Google, Twitter, Workday, and Amazon. He blends deep mathematical training (PhD in Mathematics) and quantitative finance experience with hands-on engineering in Scala, Java, and distributed systems to productize statistical and machine-learning solutions at scale. Notable work includes building a Spark-based ML platform and open-sourcing a time-series forecasting ARIMA implementation, plus production microservices for predictive analytics. Equally comfortable in research and product settings, he has experience from academic symplectic topology to low-latency streaming and game analytics, giving him a rare ability to translate advanced math into reliable, deployable software.
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