Dag BrattliDag Brattli is a senior software engineer at the FAST team within Outlook and Office 365 in the Applications and Services Group in Microsoft. He has been using Python since version 1.5, and is the author of the Reactive Extension for Python ( https:/github.com/ReactiveX/RxPY). In his current role, he works with the design and implementation of reactive systems and services in the cloud. At work, he uses C# but likes to play with Python at weekends. He holds a Master's degree from the Department of Computer Science at the Arctic University of Norway and in his spare time, he loves cycling in the arctic landscape around his hometown of Tromso. Read More Read Less