Mostly, Kafka developers manage Kafka-based cluster environments and massive scale multiple nodes on AWS. Kafka developers also take care of Kafka environment builds that involve capacity planning, performance tuning, cluster setup, and continuous monitoring.Kafka developers participate in the design, development and analysis of web applications using Confluent Kafka – an open-source platform used for streaming data. These developers have a combination of technical and soft skills that allow them to recommend the best approach when it comes to data.If a Bachelor's degree is not in your future, you can always sign up for online certifications and courses to improve your skills as a developer and broaden your knowledge. You can find options for these down below: Confluent Training. Apache Kafka Series – Kafka Streams for Data Processing.