Helena has worked exclusively with Scala in production since 2010 on large scale distributed systems in the cloud. As a Senior Cloud Engineer she was on the first Scala team at VMware building multi-tenant cloud automation systems, then in big data architecting, building and deploying streaming and batch analytics pipelines for Cyber Security for real time threat analysis. Most recently she has worked on streaming analytics and machine learning at scale with Apache Spark, Cassandra, Kafka, Akka and Scala. Helena is a committer to the Spark Cassandra Connector and a contributor to Akka, adding new features in Akka Cluster such as the initial version of the cluster metrics API and AdaptiveLoadBalancingRouter. While working at SpringSource she was a contributor to several open source projects such as Spring Integration and Spring AMQP. Helena is a speaker at international Big Data and Scala conferences such as Spark Summit, QCon, Scala Days, and Philly Emerging Technology. She is currently VP of Product Engineering at Tuplejump.