Both will take up their roles in August reporting directly into Metro Bank chief executive Craig Donaldson.
Joining from RBS, Walters brings with him a wealth of experience, having previously held the roles of managing director of business banking and managing director of specialised relationship management within the bank’s business and commercial banking area.
He will oversee Metro Bank’s growing business and commercial customer base, which represents 44% of the bank’s total lending and continues to be a core focus.
Kirkpatrick will be responsible for overseeing all activity across Metro Bank’s growing number of London and South East-based stores, and will be instrumental in future expansion plans.
Metro Bank recently celebrated the opening of its 36th store with another four planned before the end of the year.
Joining from the UK Private Bank division at Lloyds Banking Group, Kirkpatrick has many years of experience in the banking sector. Prior to his most recent role he held a number of positions including retail and mortgage director for Lloyds TSB Scotland and the running of retail branch networks for Lloyds and Halifax in London and the South East.
Walters said: “Small and medium-sized enterprises play a crucial role in the economy. At Metro Bank we deliver local relationship banking focused squarely on the needs of the customer.
“I am confident we are well placed to support an increasing number of businesses thereby making an important contribution to local communities.”
Kirkpatrick said: “The culture throughout the business is one I have admired for some time, so I’m looking forward to becoming part of the banking revolution."
Metro Bank chief people officer Danielle Harmer said: “Both Ian and Iain bring a wealth of experience to their respective roles and we look forward to working closely with them, especially at such an exciting time for the business and the Metro Bank story.”
Reporting financials for the second quarter of the year, Metro Bank announced it recently surpassed £2bn in lending.