Brian Dunn joined Flagstar in 2012 and has held positions in Financial Planning & Analysis, Enterprise Risk Management, and Internal Audit. In 2016 he became chief audit officer and in 2019 was named chief of staff to the CEO.

He has over 20 years of finance, technology, audit, and risk management experience across a large cross-section of industries. Immediately before joining Flagstar, he served as the director of management reporting for global automotive services at Ally Financial. Prior to that, he held positions at GMAC Commercial Finance, General Motors, Accenture, and The Walt Disney Company.