agile management , Cassandra, Kafka, Nosql, RDBMS, Solr, Oracle, Hadoop, Scrum, Redis, Rup, lambda architecture, Airflow, OO Modeling, Data lakes and related ecosystems, flink data streaming, Big Data solutions using Spark, Presto technology, rule engines, performance benchmarking testing for Big data technologies, Xp, scripting and automation, caching components or services, ML models engineering, elastic