Sudha Viswanathan is a Big Data Architect pioneering in the area of building scalable and reliable data platforms in on premise environments and in cloud environments. She has a solid background in the full lifecycle of data and systems to enable informed, data driven decision making. Currently, she is a Senior IC  in Storefront Data Engineering platform at Wayfair which is used broadly across the company for revenue attribution, ad bidding and A/B test analysis. Previously, she worked at Walmart and built the Customer Identity Graph platform, which used Spark as the processing engine and handled 20+ billion nodes enabling Walmart to identify its customers irrespective of the channel which brought them to Walmart.  She is a passionate speaker who takes keen interest in explaining the most complex technical details in simple layman terms to make even the last person in the room understand the details.