Helena has worked on cloud platforms, big data, analytics, ML, security and infrastructure at massive scale. Academically she did research in biological systems modeling, prediction and design. She is a committer to FiloDB, contributor to Akka and previous committer to the Spark Cassandra Connector. She has been a speaker at Scale By The Bay, Kafka Summit, Spark Summit, Strata, QCon, Reactive Summit, Scala Days, Philly Emerging Tech, and is a Cassandra MVP.