Heathrow
Yes, as in the airport.
Oh it is a lovely place to look at. But as romantic as the "live in a country cottage and be free" mentality is real life does not allow it unless you are super rich. Where are you going to work on a tiny island in the West of Scotland? It's hard enough getting a job on the mainland in towns!
The Isle of Skye is very nice place to visit, but you are correct not such a good place to make a living.
Tourism & Hotels for six months of the year, then out of work for the winter months.
A few government & local government positions, like Forrestry Commisssion, Postal service and road mending.
Some local artisans making touristy tat for visitors, like pottery and whatnot.
Working with sheeps, there are more sheeps than peeps on the island.
The one thing that can be done from there is an Internet "niche business", so if you aspire to do something like that, it could be a great place to do it.
Everything else looks a bit crap, good luck though.