Presented By O'Reilly and Cloudera
Make Data Work
31 May–1 June 2016: Training
1 June–3 June 2016: Conference
London, UK
Deenar Toraskar

Deenar Toraskar
Founder, Think Reactive

Website | @ThinkReactive

Deenar Toraskar is a cofounder of Think Reactive, which provides a responsive, resilient, elastic, ready-to-go risk analytics solutions based on Spark. Think Reactive has worked with various banks to implement market and credit risk calculation platforms including the new FRTB calculations see ( The solution features an intuitive interactive notebook interface and is backed by a high definition warehouse to provide deep insight.

Previously, Deenar worked at a Tier 1 investment bank, leading a team developing risk analytics applications (with numerous passionate and satisfied users) on a Spark/Hadoop platform. Deenar is also a Apache Spark contributor, a keen cyclist, and a proud parent.


14:55–15:35 Thursday, 2/06/2016
Hadoop use cases
Location: Capital Suite 10/11 Level: Intermediate
Deenar Toraskar (Think Reactive)
Average rating: ***..
(3.00, 2 ratings)
Value at risk (VaR) is a widely used risk measure. VaR is not simply additive, which provides unique challenges to report VaR at any aggregate level, as traditional database aggregation functions don't work. Deenar Toraskar explains how the Hive complex data types and user-defined functions can be used very effectively to provide simple, fast, and flexible VaR aggregation. Read more.