Hello,
I believe i'm the one your searching for . I'm data engineer based in Paris, with 5 years working with the JVM environment, and currently working on high distributed system using Scala, Akka, Kafka, Spark, Hadoop, ES (and other technologies)
So for your project, i didn't understand very well you requirement, i hope to receive a reply from you to discuss further this project, because i believe i can help you with my experience.
P.S: My bidding price should be changed (maybe be less maybe more) after we discuss the project :)
Thank you