Alena Hall is a Senior Cloud Developer Advocate at Microsoft Azure focusing on High Scale, Big Data, Distributed Systems and adjacent topics, like Machine Learning and Data Science. Previously, Alena worked as a Senior Software Engineer at Microsoft Research and in roles ranging from a Software Engineer to Solutions Architect. She has more than 10 years of professional experience and has been doing engineering within numerous technological streams, programming in Java/Scala, .NET C#/F#, Python, Bash + lots of frameworks for each stack. Alena designed and implemented large-scale, performant, distributed cloud-native architecture (e.g. with Hadoop, Spark, Kubernetes, etc.), functional programming and machine learning, delivering low latencies, high throughput and efficient data processing. Alena is an international conference speaker, conference organizer, F# Software Foundation Board of Trustees member, book reviewer and active community member. Follow her @lenadroid on Twitter, and on YouTube.