The composable core playbook

Playbook

Transform your core with confidence

A practical guide to successful modernisation and implementation.

Moving to a modern core doesn't have to be overwhelming. This playbook provides the proven strategies and clear steps you need to avoid common pitfalls, minimise disruption, and build a resilient foundation ready for whatever comes next.

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Modernise your core, your way.

Every bank has a unique journey. Discover five proven implementation models designed to match your business strategy and appetite for change.

From greenfield neo-banks to phased migrations, each approach offers a practical path to modernisation.

Learn from this playbook:

Three proven migration strategies to keep risk low while maintaining business continuity.

A 7-step acceleration roadmap built on insights from hundreds of successful financial transformations.

Real-world case studies from global leaders like Cake and GoTyme Bank who achieved rapid deployment and massive cost savings.

The "big bang" replacement is history.
Learn how to create an agile core for the future.

Successful transformation is about evolving, not bypassing. Learn how to use a composable, API-first architecture to launch products faster, lower operational costs, and scale efficiently in a highly regulated environment.

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Core transformation

Hear from our customers

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“We needed a solution native to that environment which shared the lean and agile attributes of our business. Mambu offers us scalability, flexibility and speed to market at a fraction of the cost of traditional core systems.”

Co-Founder & CTO, New10

“We’ve seen a lot of changes in the industry, so this end-of-life warning was simply the latest. Replacing the core banking system gave us the chance to modernise to meet current needs and set ourselves and our customers up for the future.”

Chad Griffin, CEO, League Data

When the bank decided to modernise its core banking system, they selected Mambu's cloud-native banking platform because it offered infinite scalability and quick time to market.

“We needed a solution native to that environment which shared the lean and agile attributes of our business. Mambu offers us scalability, flexibility and speed to market at a fraction of the cost of traditional core systems.”

Co-Founder & CTO, New10

“We’ve seen a lot of changes in the industry, so this end-of-life warning was simply the latest. Replacing the core banking system gave us the chance to modernise to meet current needs and set ourselves and our customers up for the future.”

Chad Griffin, CEO, League Data

When the bank decided to modernise its core banking system, they selected Mambu's cloud-native banking platform because it offered infinite scalability and quick time to market.

“We needed a solution native to that environment which shared the lean and agile attributes of our business. Mambu offers us scalability, flexibility and speed to market at a fraction of the cost of traditional core systems.”

Co-Founder & CTO, New10

“We’ve seen a lot of changes in the industry, so this end-of-life warning was simply the latest. Replacing the core banking system gave us the chance to modernise to meet current needs and set ourselves and our customers up for the future.”

Chad Griffin, CEO, League Data

When the bank decided to modernise its core banking system, they selected Mambu's cloud-native banking platform because it offered infinite scalability and quick time to market.

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Let’s compose the future of banking together.

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