A new digital bank for Poland's mobile-first customers
Raiffeisen Digital Bank, part of the Austrian-based Raiffeisen Bank International (RBI), leveraged Mambu to launch its greenfield bank in just 9 months.
- 0
- months to market
- 0
- minutes credit decison
Cloud service provider
Raiffeisen Digital Bank
About the customer
Raiffeisen Digital Bank (RDB) is the digital-first venture under the Raiffeisen Bank International (RBI) umbrella. RBI primarily operates brick-and-mortar banks with 17.2 million customers and 1699 business outlets across Eastern Europe.
RDB was established in 2021 with the goal of providing modern financial services to digitally-savvy customers in Poland.
Aiming to offer a seamless, secure, and user-friendly experience, RDB turned to Mambu to power their cloud-native digital bank solution.
The challenge
Overcoming legacy to embrace digital banking
RDB, part of RBI—a brand with a rich history of 135 years—needed to pivot from traditional, brick-and-mortar banking to a fully digital, cloud-native model.
The challenge was clear: digitise the banking experience without sacrificing security or customer-centricity. RDB recognised the rapid shift to digital banking and sought a platform that could enable swift market expansion, with the agility to scale and evolve quickly.
“We knew that only an advanced cloud-native technology would give us the competitive edge and the ability to reach new markets rapidly. With Mambu onboard, we can continue to steer towards bringing simplicity and convenience to our customers.”
- Jakub Malach, Head of Lending, Raiffeisen Digital Bank
The solution
Leveraging Mambu for rapid transformation
RDB chose Mambu's cloud-native lending engine, underpinned by Amazon Web Services (AWS) to power their greenfield digital bank. By leverging Mambu's composable architecture, RDB was able to focus on developing innovative, modern, and convenient financial solutions for a new generation of customers.
RDB’s in-house team collaborated closely with Mambu’s implementation and advisory teams to successfully implement the platform in just 6 months.
The result
Rapid launch and modern banking experience
Mambu’s fast, cost-effective implementation enabled RDB to launch quickly and expand into new markets in Eastern Europe. Since launching in 2021, RDB has explored Mambu’s daily banking features and integrated the Marqeta connector to streamline payment card authorisations.
- Time-to-market: 9 months
- Loan Value: Up to €32,000 in 15 minutes with just an ID card
- Live with daily banking since April 2023
Download the full case study
Learn how Raiffeisen Digital Bank transformed its banking operations with Mambu’s cloud-native platform.
Loading Form
Explore more customer stories
© Mambu 2026