This has to be preexisting company. Imagine if you had all the skills & qualifications needed.
I honestly can't think of a specific firm that I'd consider a "dream company". There were a few in the old days (such as Xerox PARC or General Magic in their prime), but they're long gone now.
I honestly can't think of a specific firm that I'd consider a "dream company". There were a few in the old days (such as Xerox PARC or General Magic in their prime), but they're long gone now.