I have a code angular Frontend, Scala Backend The Backend is connected with MongoDB, and it deployed on Docker Swarm. So what I need is a help to optimize the code :

1- connected the Backend with Casandra DB with Bids and Timestamp columns

2- I need to join the Backend with KAFKA MQ

3- I need to deploy the code in Kubernetes instead of Docker swarm then put it in the cloud

4- I need to explain the system to me and help