Harris was formerly director of intermediary mortgages at Atom Bank.
Maria Harris (pictured) will be joining Twenty7Tec as a consultant.
From October, Harris will be supporting the development of the company's lender focussed solutions.
Harris will also work with Twenty7Tec's lender partners to identify opportunities for the company to develop new solutions to support lenders and intermediaries.
Harris was formerly director of intermediary mortgages at Atom Bank.
James Tucker, chief executive of Twenty7Tec, said: “Maria’s reputation for her knowledge of both lending and technology is second to none, and I am delighted that she has agreed to come and support our desire to remain at the cutting edge of technological change in the mortgage market.”
Maria Harris added: “After the most amazing five years designing and launching mortgage technology to disrupt the market this is a great time to work with Twenty7Tec and start taking the industry to the next level.
"There’s so much happening in the tech space right now so I’m delighted to be working with the Twenty7Tec team who have the vision and drive to transform the mortgage market.”