Does George Soros use charts and technical analysis as part of his process?

You bet he does.

Check out this article from Josh Brown: about that “Soros is shorting gold” rumor

This, in particular, caught my eye:

Soros also hired away one of the most talented technical analysts out there, John Roque, upon the collapse of Roque’s previous employer, broker-dealer WJB Capital. No one has heard from the formerly media-available Roque since

Not everyone uses charts and TA – but Mr. Soros does (amongst other things).