Positions do all of the above exist. Just depends on the company and where in the stack you are. There's a lot of math and domain expertise on the controls and sensors sides. Most people in any particular company aren't doing those though. There are lots of jobs available for c/c++/Matlab/Python/js.
If you don't want to change what you're doing or using, most modern robotic platforms have a web interface somewhere in them for monitoring the fleet. Any web developer would find their skills perfectly compatible.
If you don't want to change what you're doing or using, most modern robotic platforms have a web interface somewhere in them for monitoring the fleet. Any web developer would find their skills perfectly compatible.