003 - Scala at Duolingo with Andre Kenji Horie

Andre Kenji Horie is senior engineer at Doulingo.  He wrote about the process of rewriting the session generator, as well as moving from python to scala.  and changing architecture all at the same time. In this episode Andre talks about the reasons for the rewrite, what drove them to move to scala and the experience of moving from one technology stack to another.