David Rodriguez David is tech lead on engineering and data science initiatives for Cisco Umbrella research focusing on large-scale cybersecurity threat detection. He has authored multiple patents with Cisco identifying malicious network traffic using deep learning and behavioural analytics. He is known for his open-source work on projects such as Rainier, a probabilistic programming framework, and speaking about machine learning and big data technologies in cybersecurity at conferences like Black Hat, O'Reilly Strata, Flink Forward, Flocon, Virus Bulletin, and HitBSEC.