Modernising the core banking foundation with Mambu
Akbank AG, the German subsidiary of Turkey’s leading bank Akbank TAS, successfully migrated its Retail and Private Banking segments to Mambu’s cloud-native core banking platform. In partnership with Innovance, the bank replaced its legacy infrastructure with a flexible, API-first architecture to accelerate innovation and operational resilience.
- 0%
- of retail and private banking customers and accounts migrated
- 0
- months to launch an end-to-end digital corporate credit approval process
Integration partner
Paragon Bank Akbank AG
About the customer
Akbank AG is the successor institution of the German branch of Akbank T.A.Ş., one of Turkey’s leading financial institutions.
Headquartered in Eschborn, the bank has held a full German banking license since 1998, providing retail and corporate services under the supervision of the German Federal Financial Supervisory Authority (BaFin). With around 120 employees, Akbank AG is a voluntary member of the Deposit Protection Fund of the Association of German Banks.
In recent years, the bank has invested heavily in modernising its digital and core banking infrastructure to support scalable growth and long-term operational resilience.
Headquartered in Eschborn, the bank has held a full German banking license since 1998, providing retail and corporate services under the supervision of the German Federal Financial Supervisory Authority (BaFin). With around 120 employees, Akbank AG is a voluntary member of the Deposit Protection Fund of the Association of German Banks.
In recent years, the bank has invested heavily in modernising its digital and core banking infrastructure to support scalable growth and long-term operational resilience.
The challenge
Moving away from rigid legacy systems
To remain competitive in the rapidly evolving German market, Akbank AG needed to move away from rigid legacy infrastructure that limited flexibility and scalability.
The bank required a modern core banking platform that could support faster product development, integrate easily with external systems, and adapt to evolving regulatory and business requirements.
Its primary objective was to adopt a cloud-native, API-first architecture that would reduce operational complexity, improve resilience, and accelerate time to market.
The bank required a modern core banking platform that could support faster product development, integrate easily with external systems, and adapt to evolving regulatory and business requirements.
Its primary objective was to adopt a cloud-native, API-first architecture that would reduce operational complexity, improve resilience, and accelerate time to market.
"Mambu aligned perfectly with our objectives due to its composable banking architecture and API driven flexibility, integration with third-party services, and the ability to scale efficiently."
– Osman Kara, Core Banking Technologies Vice President at Akbank AG
The solutions
A future-ready, cloud-native banking platform
Akbank AG selected Mambu for its API-first design and composable banking approach, which allowed the bank to respond faster to changing customer expectations and market dynamics, build products faster and integrate easily with partners.
Mambu’s core banking platform provided the right balance of flexibility and technical alignment with the bank's long-term digital strategy.
The platform’s configurability allowed Akbank AG to define workflows, pricing structures, and business rules directly through configuration rather than code, reducing development effort and accelerating delivery.
Mambu’s core banking platform provided the right balance of flexibility and technical alignment with the bank's long-term digital strategy.
The platform’s configurability allowed Akbank AG to define workflows, pricing structures, and business rules directly through configuration rather than code, reducing development effort and accelerating delivery.
The implementation
Delivering the Retail and Private Banking migration
The transformation was delivered in close partnership with Innovance, Mambu’s strategic technology partner, who served as the primary solution integrator.
A key component of the architecture was the Core+ layer, developed by Innovance. This layer acts as the orchestration and business logic engine between Mambu and the wider ecosystem–enabling scalable product development , transaction validation and standardised integration patterns aligned with Akbank AG’s target architecture.
The entire architecture is hosted on Microsoft Azure, providing a secure, scalable, and highly available infrastructure for the bank’s core banking operations.
A key component of the architecture was the Core+ layer, developed by Innovance. This layer acts as the orchestration and business logic engine between Mambu and the wider ecosystem–enabling scalable product development , transaction validation and standardised integration patterns aligned with Akbank AG’s target architecture.
The entire architecture is hosted on Microsoft Azure, providing a secure, scalable, and highly available infrastructure for the bank’s core banking operations.
The implementation followed a structured migration strategy designed to ensure stability.
The fully integrated ecosystem now connects Mambu with various components, including accounting, payment, digital channels (web and mobile), wealth management back-office, and enterprise financial crime detection systems.
As part of the Retail and Private Banking migration, all customers and accounts were moved to Mambu in January 2026. This was achieved through multiple migration cycles, with each iteration improving data accuracy, resilience, and overall migration maturity.
The fully integrated ecosystem now connects Mambu with various components, including accounting, payment, digital channels (web and mobile), wealth management back-office, and enterprise financial crime detection systems.
As part of the Retail and Private Banking migration, all customers and accounts were moved to Mambu in January 2026. This was achieved through multiple migration cycles, with each iteration improving data accuracy, resilience, and overall migration maturity.
“The success of our implementation was largely driven by a combination of Mambu’s clear delivery framework, strong collaboration between our teams, and the platform’s configurable architecture.”
- Osman Kara, Core Banking Technologies Vice President at Akbank AG
The result
Operational efficiency and faster delivery
Following the successful Retail and Private Banking migration, Mambu has enabled Akbank AG to adjust parameters like pricing, fees, and interest settings directly through configuration.
A key milestone was the delivery of the digital corporate credit approval process in just four months, demonstrating the bank’s ability to design and launch new capabilities rapidly. By migrating to Mambu’s modern, cloud-native core, Akbank AG has established a scalable and flexible foundation that supports ongoing transformation and future growth.
A key milestone was the delivery of the digital corporate credit approval process in just four months, demonstrating the bank’s ability to design and launch new capabilities rapidly. By migrating to Mambu’s modern, cloud-native core, Akbank AG has established a scalable and flexible foundation that supports ongoing transformation and future growth.
"With the successful Retail and Private Banking migration on Mambu, and in close collaboration with Innovance, we have modernised our core banking foundation and established a scalable architecture to support our future growth."
– Osman Kara, Core Banking Technologies Vice President at Akbank AG
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