The self billing application is intended to facilitate invoicing for servicepoints, sub-contractors and cityhubs. Each of these departments has different products and pricing models. Each month we create invoice runs where big data is ingested and reduced to invoices.
It's important at financial departments to review the invoices. We offer multiple options to inspect each invoice and have breakdowns how a invoice is built up. Besides that we created a workflow where multiple people need to approve the billing run before it can be send.
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Kafka is an open-source stream-processing software platform. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds
Java is a class-based, object-oriented programming language. It is a general-purpose programming language intended to let application developers write once, run anywhere.
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Scala combines object-oriented and functional programming in one concise, high-level language.
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