Wall Street's bonus culture gets reshaped by machines and robots

. Coders have been handed licenses to trade equities at JPMorgan Chase & Co. while they're the focus of the biggest hiring spree in years for Goldman Sachs Group Inc.'s trading division

Chris Purves has been at the cutting edge of markets for more than a decade – from algorithmic trading to machine learning.

Now the head of UBS Group AG’s Strategic Development Lab is turning his focus to the human survivors of the tech invasion, persuading them to understand things will never be the same. They’re going to have to -- in the jargon of Silicon Valley’s missionaries — “unlearn” how they’ve always operated.

It’s not just that their software may know their next move before they do. The extinction of an entire way of life is looming, as Purves sees it: the