[aykutcan]

Some parts of my old project at work:

1- WebSocket Server / Service (Poorly designed, barely alive)

It was fine until it was not. It seems managing a lot of connections are harder than our team thinks it is. I still don't get it why we dedicated a couple of people to this for very long time. We should have used one of the existing services like pusher or signalr etc.

2 - Mobile Push Notifications Service only for our usage.

To be honest this was working fine but they designed it like to be one of competitors. Was not worth the effort.