Hi!
I'm currently using Cassandra in my own security startup where our Cluster has been up and running since the start of the year. During this time I've had to ensure that it can handle high load from both Android clients as well as customers using our analytics web platform. In order to ensure this I've conducted stress testing via python scripts that use the python datastax driver, bash scripts that use cqlsh and I also developed an Android client purely for testing our infrastructure when handling high writes. This testing resulted in our infrastructure being able to handle a high load of both reads and writes and it directly influenced our decision to implement RabbitMQ and celery workers to manage Cassandra database interactions.
I think my background and experience would be of value to you on this task.
Best,
SkysEdge