Alexander Gray received Bachelor's degrees in Applied Mathematics and Computer Science from UC Berkeley and a PhD in Computer Science from Carnegie Mellon University, and worked in the Machine Learning Systems Group of NASA's Jet Propulsion Laboratory for 6 years. He currently directs The FASTlab (Fundamental Algorithmic and Statistical Tools Laboratory) at Georgia Tech, consisting of 25 people including 14 PhD students, which works on the problem of how to perform machine learning/data mining/statistics on massive datasets, and related problems in scientific computing and applied mathematics. Employing a multi-disciplinary array of technical ideas (from machine learning, nonparametric statistics, convex optimization, linear algebra, discrete algorithms and data structures, computational geometry, computational physics, Monte Carlo methods, distributed computing, and automated theorem proving), the lab has developed the current fastest algorithms for several fundamental statistical methods, and also develops new machine learning methods for difficult aspects of real-world data, such as in astrophysics and biology. This work has enabled high-profile scientific results which have been featured in Science and Nature, and has received an NSF CAREER award and two best paper awards. He has given tutorials for the field and invited talks on efficient algorithms for machine learning at venues including ICML, NIPS, SIAM Data Mining, as well as in applied mathematics and astronomy.