Olena is passionate about data and its applications, sustainable software development, and teamwork. With a background in computer science, she's led teams and developed mission-critical applications at Nokia, HERE Technologies, and AWS. Currently, she works at Aiven where she supports developers and customers in using open-source data technologies such as Apache Kafka, ClickHouse, and OpenSearch. She is also an AWS Community Builder, a Confluent Catalyst, a volunteer teacher at non-profit tech school and an international public speaker, who regularly present at conferences around the world.