Well I am the one who has seen the rise of technology in front of my eyes and have worked on each and every layer. I have total 12 years of experience with companies varying from startups like Tavant Technologies to big companies like Oracle Corp. I have also worked with Royal Bank of Scotland, Guavus Networks and Xebia. I have worked on varied technologies like SOAP, REST, J2EE, Node Js, Hadoop, Spark, Big Data, ANTLR for NLP, Python and Ruby as scripting stuff, Oozie as workflow. I have designed auto time table generation for my college depending on various health factors like (Teacher can't take 4 lectures in single day, availability of rooms, have atleast one practical per day and many other factors.). Also in oracle, we were working on creating chart for employees that how many employees would be required in various segment according to their skill. As it was for Retail market, So we also used to take historical data to identify the requirement.