Meet the man tasked with fixing Citi's tech — and securing its future

Daniel Terna for BI Tim Ryan thrives in chaos. Few signs suggest Ryan's appetite for the messiest problems. An often-smiling, mild-mannered Bostonian, he traded nearly a decade as PwC's senior partner for one of Wall Street's toughest turnaround jobs at Citigroup. "I knew that I really needed to be in a place where I get my hands dirty," he said in late May about his decision to join the bank. Citi promised to be just that when Ryan started as the head of technology in June 2024. The bank wa...