About

Prabhakar Kumar Ojha is a highly skilled software development engineer with a focus on big data, data science, machine learning, and analytics with Spark. With over 4 years of experience in IT, he has extensive knowledge in software development, Hadoop, and big data. He has hands-on experience in installing, configuring, and maintaining Hadoop ecosystems such as HDFS, Spark, Hbase, Kafka, Zookeeper, Sqoop, Ambari, Hive, and Pig. He is also well-versed in administering Hadoop clusters using Ambari, including activities like deploying Hadoop clusters, adding and removing nodes and services, and configuration. Prabhakar has in-depth knowledge and understanding of Hadoop daemons such as NameNode, DataNode, Secondary NameNode, ResourceManager, and NodeManager. He is proficient in Linux (RedHat, Ubuntu) and has expertise in Hadoop, Java, Nifi, Druid, Hbase, Kafka, Postgresql, SQL, C, Data Structure, Spring Boot, and Jersey, JavaFXML, Sqoop, and Hive. He is skilled in MapReduce programming model, importing/exporting data using Sqoop, Spark-Java DataSet, and RDD. He has experience in compressing data into HDFS, HBase, and file format, as well as data serialization. He is capable of processing large sets of structured, semi-structured, and unstructured data. Prabhakar has loaded data into HBase, RDBMS, and HDFS using Nifi. He has transformed data into one format to another while loading, such as CSV to Avro. He is enthusiastic about ML and data science and has made Lenses-Manager API using Spring Boot. He has also made an API to get business data from Hbase and Druid and imported Hadoop to Hbase using Spark Java API. He has hands-on experience with GeoHash and has made his own ETL tool using Spark Java to get data from CSV files, Postgres, and streaming data from Kafka and load it into HBase and Hadoop with UI using JavaFXML. He has also made an HBase table to CSV exporter using Java with UI using JavaFXML. Prabhakar has worked as a Software Development Engineer at CAIR (Center for Artificial Intelligence and Robotics) and is currently working at DRDO as an Engineer. He has also worked as a Big Data Developer at DDriven and as a Core Java and C