I will build website with HTML CSS react express node mongodb

I'm unable to list every project I've worked on because I value the privacy of my clients. However, I have the client's consent to share this undertaking. 

https://cubenationshop.com/

I created this project. I've used Azure DevOps, React, Next, Express, Node, MongoDB, RabbitMQ, and Node. It's a PWA. (progressive web app). 

I'd like to draw attention to one difficulty I ran into: the server had to deliver a ton of mail to the users based on various activities. The server was operating more slowly as a result of the message processing service's lengthy processing times. To address this issue, I developed an alternative mail server and a RabbitMQ message queue that can accommodate numerous mail requests. Every time the server needs to deliver a message, it adds one to the message queue. The mail server periodically retrieves messages from the queue. The mail server is in charge of further message processing. This greatly enhanced the efficiency.