Hi I Have excellent knowledge of so many big data technologies and done also many project using that technologies . I listing here which are those technologies
1. Cassandra
2. Spark ( sql , streaming , spark sql , spark mllib)
3. Hadoop( HDFS , HIVE,Map Reduce )
4. Kafka
Languages in which in which i can do programming (back end )
1. Java
2. Scala
3. R
and have excellent knowledge of spring , rest service(apache cxf, jersy) .