Roger Bernheim, the co-head of JP Morgan's proprietary trading group in Europe, has been hired by TT International as risk manager for its European long/short funds.

Bernheim will replace Henry Bedford, who has decided to retire from the TT partnership, which manages funds totalling $7bn (€7bn). Bernheim will co-lead TT's European funds alongside Tim Tacchi, a co-founder of the international money manager.