Thomas Callaghan is a principal in the technology group at Crowe. He specializes in data science, consulting, and advisory services. Thomas has more than 10 years of experience and expertise in mathematics, specifically stochastic processes, modeling, time-series analysis and forecasting via modern machine learning methods, signal processing, numerical optimization, and numerical analysis. He has applied this expertise to solving problems related to anomaly detection in financial time-series, high-frequency trading strategies, and portfolio optimization.