Campbell will be responsible for executing the firm's commercial growth strategy in this new role, and embedding operational excellence and resilience into the business as it scales. Her appointment as COO comes after Adam Moulson was announced as interim CEO, while David Jarvis takes parental leave.

"This promotion reflects Maria's immeasurable impact on our business and culture. Her exceptional leadership, people-first approach, and unwavering focus on excellence make her a natural choice as COO. I’m excited to see what she brings to the role as we set out on our next phase of growth“ said Griffin, CTO and co-founder Allen Rohner.

Before Griffin, Campbell was Head of People at GoCardless and Monzo Bank and held several senior people roles at technology firms. Earlier this year, Campbell was recognised as one of the Top 25 Women Leaders in Financial Technology in Europe by The Financial Technology Report and as one of London's 20 Most Impressive & Successful Banking VPs by Best Startups.

"I'm thrilled to have the opportunity to support our wonderful team and business as we scale from startup to unicorn. I'm excited to apply what I have learned in creating commercially-minded, people-led cultures to my new role as COO. As someone who has their sleeves perpetually rolled up, I can't wait to get stuck in."

David Jarvis and Allen Rohner co-founded Griffin in 2017, with the mission of becoming a technology-first bank designed to help fintechs and innovative companies quickly launch and scale financial products. The company recently submitted its application for a UK banking license, a significant step in its journey to becoming the bank that fintechs can build on.