These are totally different skill sets with very different tool chains. Front and backand are as dissimilar as carpentry and cabinetry, or geography and geology, or tailoring and fashion design.
On the frontend you need to deliver excellent user experience, deliver accessibility, localization, cater to different—sometimes legacy—browsers. Even if you have a graphic designer, you still need to work with your designers to deliver a good UX.
On the backend (I think) you need to deliver optimization, and speed, you need to work within confines of your infrastructure, or work with your infrastructure engineer, you have to design databases and optimize your storage and delivery. You also need to deliver a good API for your frontend devlopers, otherwise they‘ll complain. I‘m a frontend developer so I bet there are tons of stuff backend developers do which I don‘t even know about.
On the frontend you need to deliver excellent user experience, deliver accessibility, localization, cater to different—sometimes legacy—browsers. Even if you have a graphic designer, you still need to work with your designers to deliver a good UX.
On the backend (I think) you need to deliver optimization, and speed, you need to work within confines of your infrastructure, or work with your infrastructure engineer, you have to design databases and optimize your storage and delivery. You also need to deliver a good API for your frontend devlopers, otherwise they‘ll complain. I‘m a frontend developer so I bet there are tons of stuff backend developers do which I don‘t even know about.