yes, he works, but not full-time and often flexible hours
he tries to trade about 15 hours per week, the hours on Tuesday, Wednesday and Thursday when both the London and US markets are open at the same time
it’s the best he can do, and he’s lucky to be able to do it, of course - if his only free time for trading was Mondays and Fridays he’d be in trouble!
his maximum position size is 0.5% so he’d need a really bad run to lose 10% of the account, right now i think he normally risks about $550-$600 per trade, to try to win the same (R = 1.0, give or take commission)