Richard Feynman oversaw the IBM computer's use and programming used in the Manhattan Project. Microsoft also has an R&D department that would probably just give him a budget and a team of assistants to see what he came up with.

I don’t know but I shudder at the thought of what state the world would have to be in for Feynman to be interviewing at Microsoft or any FAANG company for that matter.

Feynman made significant contributions to supercomputing.

https://longnow.org/essays/richard-feynman-connection-machin...

I'm guessing Feynman would've had a much better chance getting hired at old Microsoft, than through the current FAANG/wannabe interview process.