McCormack has over 20 years of experience in the intermediary market, including running Bank of Ireland and Bristol & West Mortgages.
His first task will be to form a new team to support brokers with the expected recruitment of over 200 people across the UK ahead of launch.
Paul Pester, chief executive of TSB Bank, said: “I am delighted to welcome Roland to TSB. He has a great track record in transforming businesses so I have no doubt he will build a strong intermediary business for TSB. TSB was designed to bring more competition to UK banking and the launch of our intermediary arm will do just that.”
McCormack added: “TSB is already making an impact on the high street and our aim is to shake up the intermediary market too. This is an exciting milestone for TSB and I am thrilled to be launching a new brand to the broker community.”
MCCormack joined Bank of Ireland Mortgages as head of sales in 1999, becoming managing director of the brand in 2001 before taking the same position at Bristol & West Mortgages in 2005.
Since 2010 he has been a partner in The McCormack Partnership, a specialist consultancy in the lending, savings, legal and property management and disposal markets.