Haoran Fei is an Algo Developer at Hudson River Trading with nine years of experience building data-driven systems at the intersection of quantitative modeling, trading, and machine learning. A Carnegie Mellon computer science graduate with a machine learning minor, he bridges research and production—teaching a PhD-level deep reinforcement learning course while shipping detection and ETL platforms at Google and GE. His background spans time-series and anomaly detection, unsupervised and deep learning (Autoencoders, LSTM), and cloud/big-data pipelines on Hadoop/Spark, applied to fraud detection, risk control, and trading signals. Known for turning academic ideas into operational tools, he has integrated predictive rules into open-source tooling to reduce moderation effort and designed secure data-network proofs of concept for legacy systems. Based in Jersey City, he balances rigorous technical work with quieter pursuits like gardening, reflecting an analytical yet grounded approach to problem solving.
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