Rajiv Tiwari is a hands-on freelance big data architect with over 15 years of experience across big data, data analytics, data governance, data architecture, data cleansing / data integration, data warehousing, and business intelligence for banks and other financial organizations.He is an electronics engineering graduate from IIT, Varanasi, and has been working in England for the past 10 years, mostly in the financial city of London, UK. He has been using Hadoop since 2010, when Hadoop was in its infancy with regards to the banking sector.He is currently helping a tier 1 investment bank implement a large risk analytics project on the Hadoop platform.Rajiv can be contacted on his website at http://www.bigdatacloud.net or on Twitter at @bigdataoncloud.