Mphasis completes Flagstar Bank data centre overhaul

Mphasis has completed the first phase of a technology modernisation programme for Flagstar Bank, including the consolidation of six data centres into two.

Over roughly 12 months, the project also involved migrating hundreds of critical applications without interrupting services, according to the companies.

Flagstar, a US regional bank with USD $87.5 billion in assets at the end of 2025, has been reshaping its technology estate after acquisitions left it with multiple legacy data centres. The overhaul is part of a broader effort to simplify infrastructure and improve operational resilience.

The first phase included the design, installation, configuration and certification of two new data centres under a co-sourced operating model. Mphasis worked with Flagstar's technology team to move systems from the old estate to the new platform while keeping banking operations running.

Large banking infrastructure projects often take longer because they involve business-critical systems, regulatory requirements and integration across inherited platforms. That complexity can deepen after mergers and acquisitions, when banks must manage overlapping systems and data environments.

Chris Higgins, Executive Vice President and Chief Information and Operations Officer at Flagstar Bank, said the programme is part of a broader internal initiative known as S2.

"Our partnership with Mphasis further advances Flagstar's Simple and Sophisticated (S2) platform initiative. S2 represents a fundamental competitive advantage for Flagstar."

"With S2, we've created something truly differentiated in the market - technology architecture that's purpose-built around the customer experience and designed for the next decade of growth. What sets us apart isn't just the modernisation itself; we have reimagined every touchpoint to be seamless, intelligent and personal. S2 is the foundation that delivers experiences our competitors simply cannot match," Higgins said.

Bank overhaul

The new setup strengthens disaster recovery and improves the bank's ability to maintain services during disruption, the companies said. For lenders with broad branch networks and digital banking operations, those issues have become more pressing as customer expectations for uninterrupted service have risen.

Flagstar operates about 340 locations across 10 states, with major positions in the New York and New Jersey metropolitan area, the upper Midwest, Florida and the West Coast. Its loan book stood at USD $61.0 billion, with deposits of USD $66.0 billion and total stockholders' equity of USD $8.1 billion at the end of 2025.

Rohit Jayachandran, Head of Banking & Financial Services at Mphasis, said the work reflects a broader challenge facing regional lenders.

"Our collaboration with Flagstar Bank reflects a shared commitment to delivering meaningful outcomes through disciplined execution. Regional banks are modernising technology environments that have evolved over many years while continuing to run mission-critical operations without disruption. Working closely with Flagstar, our teams have helped establish a resilient infrastructure foundation that supports modernisation while maintaining the operational stability banks depend on," Jayachandran said.

The project highlights how banks are trying to update core infrastructure while avoiding the customer and operational risks that can accompany major system changes. Outages linked to migrations or platform replacements can damage customer trust and draw regulatory scrutiny, particularly in retail and commercial banking.

For Flagstar, the completed phase leaves the bank with a smaller, more modern physical infrastructure base. It also provides a cloud platform intended to support later changes to applications and operations.

Jason Pope, Executive Vice President and Chief Technology Officer at Flagstar Bank, said the migration was completed without interrupting banking services.

"This transformation demonstrates what is possible when deep engineering expertise is combined with disciplined execution. We have modernised our critical infrastructure while ensuring uninterrupted banking operations so as not to affect our clients.

"The new platform significantly improves our disaster-recovery capabilities, strengthens operational resilience and enables our teams to respond to evolving customer needs and market opportunities. With a modern and stable infrastructure foundation in place, the bank is better positioned to introduce new capabilities, respond to evolving customer expectations and support future growth," Pope said.