The document announces a three-day Big Data Developer Conference to take place from March 23-25 at the Hilton in Santa Clara. The conference will feature extensive sessions on big data tools and technologies like Hadoop, HDFS, MapReduce, NOSQL, Cassandra, HBase, Spark, and analytics. It is aimed at engineers, developers, managers, and others working with big data. The agenda outlines the daily tracks and sessions covering topics such as introductions to big data systems, workshops, use cases, security, and trends. Registration details are provided.