Your result
Spain — Digital Nomad
Not eligible
This particular route is closed to you, but only because you need a different and generally better one.
The international teleworking authorisation is defined by who you work for: it is for people working remotely for companies based outside Spain. An employee may only work for non-Spanish employers. If your employer is a company established in Spain, you are not a teleworker in this sense — you are simply an employee in Spain, and that is covered by the ordinary work and residence routes.
Those routes are not a consolation prize. If your role is qualified, the highly qualified professional authorisation is faster than the general system, is handled by the same specialist unit, and gives three years renewable for two, with permanent residence at five. If your occupation appears on Spain's official shortage list, your employer does not need to prove the job could not be filled locally. If you are being moved by a company you already work for elsewhere in the group, the intra-company transfer route exists for exactly that.
Whichever applies, your employer does most of the paperwork rather than you, which is the practical difference from the teleworking route.
One case worth separating out: if you work remotely from Spain for a foreign company that also happens to have a Spanish subsidiary, whether you fall inside or outside this route depends on which entity actually employs you and pays you. That is worth checking rather than assuming, because the answer changes the route.