The former chief operating officer at Lehman Brothers in Europe who joined Macquarie last March as chief executive of its European business – before leaving just weeks later – has re-emerged at a proprietary trading firm.

Benoit Savoret has joined Infinity Capital Markets, the European business of US prop trading firm First New York Securities. Infinity was set up and is run by traders, and aims to use its partnership capital to offer prop traders in Europe a "fully funded trading platform", according to its website.