Roman Grebennikov

Voronezh Region, Russian Federation Russian Federation

Big Data Developer

Technology / Software / Internet

Building medium-scale web-spiders (C++, Scala+akka, ~1.5 billion requests per month per server) Creating automated data extraction system based on Hadoop/HBase. Solving partial duplicate detection tasks in large databases. Creating advanced client credit scoring models for banking and finance (Weka, R, Rapidminer). Building fault-tolerant high-performance client API (Scala+spray, Cassandra, Elasticsearch) Keywords: Hadoop, HBase, Cassandra, ElasticSearch, Solr, Puppet, Zookeeper, Giraph, Java, Scala, Jenkins, Maven, Zabbix, RapidMiner.