Crocker was head of protection propositions & strategic partnerships and before that head of protection, general insurance and insurance at Sesame Bankhall Group.
Before that he was business change & propositions manager at AXA.
Mark Lofthouse, chief executive of Mortgage Brain, said: “I am pleased to welcome Roger into his new role. The continued growth and development of our market leading technology solutions places us in a very strong position within the market and it is important that we have the right people in place to assist us in achieving our growth plans.
“With over 30 years’ experience in the financial services industry Roger has a wealth of knowledge and experience and is extremely well placed to help us to continue our success and drive the business forward.”
Crocker added: “I am delighted to be joining Mortgage Brain; these are exciting times and I am pleased to have the opportunity to play an important role in the continued development and growth of the businesses.”