I am working as Software Developer in Matchinguu GmbH. My main tasks are Backend Engineering and Big Data Analysis. We are a startup and we have a mobile application that provides push notifications to users related to our customers. In result, we are getting lot of date for which we need to make a very efficient BackEnd System and do Big data analysis. I am currently using Apache Spark and Apache Kafka for Backend Engineering and want to find out other great apache options for my task. I am at very initial stage and passionate to know not only more about them but good literature about data analysis.