[tacostakohashi]

You can absolutely do that to a huge extent, but good luck actually capturing the productivity gains as an employee. You won't be rewarded with shorter days or salary increases, certainly not in proportion to your productivity increases.

At best, you can use the siphoned off time for learning new things, or networking your way into management.

Employers don't value that kind of thing, possibly because although it increases your efficiency, it also leads to a complicated, brittle environment that is difficult to scale to many employees, and staff that are less interchange and harder to replace.