They won't be hiring. These are investments to be made in new American start-ups. Americans will own their own businesses and hire whoever they want, as capitalists SoftBank will be providing the capital the new business needs either through loans, as shareholders or partners, the lenders/investors wouldn't be involved in operations only making a return on their investment and/or having their loans paid-off.

Apparently this $50 billion is from a fund of $100 billion that is set-up with Softbank and Saudi Arabia. In industrial development, we call this "reverse investment", it's when foreign countries invest in manufacturing enterprises in the United States.

Wait until Congress gets Trump's tax plan through and all our US money now off-shored comes rolling home where it belongs. Trump says "they say it's $2 to $3 trillion" but most of US think it's a lot more than that, I've read where it could be as much as $13 trillion.