Vili, 32, has a job that not everyone can do: “You can’t make a mistake”

Rope technician Vili Viljakainen has been washing windows in tall buildings for over ten years. He got into the job after his brother's inspiration after leaving the army. When entrepreneur and rope technician Vili Viljakainen, 32, is asked how many windows he washes a year, he laughs. He says he doesn't know the exact answer, but estimates it's at least tens of thousands. Viljakainen mainly washes the exterior windows of commercial properties a…