We have extensive experience in Data Extraction, Transformation and Loading (ETL) data from a wide variety of sources including legacy applications, ERP systems, CRM and other web content, Standard relational databases, HDFS, unstructured data including social media, blogs, machine data, NoSQL Databases, MongoDB, Cassandra, Hbase, on-premise cloud-based applications, Files (e.g. XML, Excel, CSV, flat files) and web service APIs.