- Lender
Ibercaja Banco
Ibercaja Banco, one of Spain’s most established financial institutions launches a new personal lending spin-off, targeting 200,000 new customers within five years, powered by Mambu’s cloud-native platform.
Becoming Germany’s first fully cloud-based bank
Europe’s leading BaaS provider, partnered with Mambu to unlock unlimited scalability, accelerate product launches, and support international expansion—resulting in 2+ million of customer accounts and award-winning cloud banking innovation.
- 1
- month implementation
- ~14%
- annual product and customer growth
- 0+
- million accounts
SOLARIS
About the customer
Solaris is Europe’s most well-established Banking-as-a-Service (BaaS) provider. Founded in 2016 and headquartered in Berlin, Germany, Solaris operates across multiple European markets, including Spain, France, Italy, and Lithuania.
With a full banking license and an API-first platform, Solaris enables more than 90+ fintechs, corporations, and digital brands to integrate financial services directly into their products.
Some of Solaris’ key partners include American Express, Samsung Pay, Vivid Money, Penta, and Bitwala, all of whom leverage its modular banking infrastructure to offer seamless financial services to millions of customers.
The challenge
Overcoming lending scalability limits
Solaris was built from the ground up to be different. In order to run their modular core banking system more efficiently, Solaris needed to find a solution to help serve as the customer account subledger system for their lending business.
Scalability was limited as only one loan could be created at a single point in time, and the total amount of loans that could be generated per day was restricted. Also their legacy provider didn’t support horizontal scaling, meaning it was impossible to add more instances to the system and distribute the load between them.
“During multiple meetings and workshops, Mambu was able to show us unique flexibility on the product configuration side. Their solution-driven mindset, communication efficiency and speed of integration is unmatched. ”
- Dr. Jörg Howein, CPO, Solaris
The solution
Cloud-native transformation with Mambu
To support its vision of banking in the cloud, Solaris selected Mambu’s API-enabled, cloud-native core banking platform, deployed on Amazon Web Services (AWS). This seamless integration allowed Solaris to build a scalable, flexible, and modular banking infrastructure tailored to its international expansion plans.
Unlike traditional core banking providers that offer rigid, highly integrated solutions, Mambu provided a loan subledger system with unmatched configurability and scalability. Through multiple workshops, Solaris saw firsthand Mambu’s solution-driven approach, communication efficiency, and speed of integration, making it the ideal partner for their long-term growth.
The result
Achieving cloud-first banking at scale
Following a quick and smooth four month implementation, Solaris is able to create more compelling products for their customers, that in turn improve the banking experience for consumers across Europe. With over two million customer accounts, Solaris relies on Mambu’s technology to run the lending load of some of their largest partners like Samsung Pay.
By fully migrating to the cloud, Solaris has built a scalable, API-driven banking ecosystem, earning industry recognition. In 2022, CELENT awarded Solaris the Model Bank Award for Core in the Cloud, highlighting its leadership in cloud-native banking transformation.
“A multitude of lending specific use cases are covered extremely well by Mambu, both on conceptual as well as on operational level. This helped us to integrate Mambu into our larger infrastructure within only a couple of months, and it’s already running the lending load of some of our large partners.”
- Dr. Jörg Howein, CPO, Solaris
Download the full case study
See why CELENT, a leading research and advisory firm recognised Solaris as a model bank of 2022 for core banking in the cloud with Mambu.
