Chris Mertz
SVP of Data Science at Mastercard responsible for building and scaling production ML systems such as Decision Intelligence Pro, focusing on modeling, infrastructure, and organizational design.
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Feb 4, 2026 • 56min
Mastercard's 160 Billion Transactions: AI's Biggest Test
Chris Mertz, SVP of Data Science at Mastercard who builds large-scale ML systems, and Johan Gerber, EVP of Security Solutions with a law-enforcement background, pull back the curtain on running AI at massive scale. They discuss scoring 160 billion transactions under a 50ms limit, an RNN “inverse recommender,” GenAI honeypots that bait scammers, and org and cloud choices that made it all possible.
