I have started a freelance full-stack project with some existing code-base and it was horrible. They only have API endpoints for fetching whole data. No limit, No sort, No filter. They are doing all this shit on the front end. They are even aggregating data on the front end. Seriously who the fuck does that? On top of that the guy who has coded it was a senior developer. I am wondering now, did he write that kind of code purposefully or this kind of shitty devs actually exists?