Robb has joined its executive team as chief risk officer, Keyden as head of capital markets, and Pione as colleague development and culture business partner.
Robb has joined Bluestone from Hampshire Community Bank, where she was chief risk officer overseeing new risks and opportunities for the mortgage market.
Keyden was previously at Pepper Money, where he was head of debt capital markets structuring, managing the multiple debt raising facilities across the first and second charge business.
And Pione has joined from Camelot, where he was the contact centre trainer.
Steve Seal, chief executive of Bluestone Mortgages, said: “I’m delighted to welcome Victoria, Chris, and Dave to the team, all of whom bring with them valuable knowledge and expertise to help us deliver on our ambitious growth plans.
“Their appointments demonstrate Bluestone’s commitment to the specialist lending market and will be vital in helping us to continue supporting our staff and customers both now and into the future.”