This is called telecommuting.

Telecommuting, also called telework, teleworking, working from home, mobile work, remote work, and flexible workplace,[1][2] is a work arrangement in which employees do not commute or travel (e.g. by bus or car) to a central place of work, such as an office building, warehouse, or store.
Wikipedia


Another way of saying "telecommuting" is to work remote, meaning to work from a remote location. You can also say that Jane is a remote employee. See What’s Your Company’s Definition of Remote Work?