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Heavy legacy cores hold back digital disruption. Praxys specializes in the transformation of mission-critical banking and telco systems. From migrating Sunline cores to cloud-native platforms to upgrading legacy billing systems, we ensure compliance, security, and high performance.
Why tier-1 institutions struggle to adapt
Legacy cores (e.g., Mainframes, old Sunline versions) cannot support modern API economies or open banking.
Launching new digital products takes months due to complex legacy integrations.
Maintaining compliance on unsupported or outdated infrastructure is increasingly difficult and costly.
A huge portion of the IT budget is spent simply 'keeping the lights on' for legacy systems.
We provide end-to-end transformation for financial and telecommunications institutions. We implement API wrappers, hollow-the-core strategies, and complete migrations to modern, cloud-native platforms, enabling open architectures and real-time processing.
Tailored for the demands of Banking and Telco
Migrate legacy mainframes or on-premise transactional cores to modern, cloud-supported architectures.
Keep the legacy core stable while moving business logic to an agile, API-driven middle tier.
Modernize telecommunications billing and operational support systems for 5G and IoT services.
Zero-risk transformation for critical systems
Deep dive into the legacy core to map dependencies, data flows, and regulatory requirements (MAS guidelines).
Designing the new cloud-native architecture or middleware layer to decouple the front-end from the legacy core.
Building the new systems while integrating and synchronizing data continuously with the legacy core.
Extensive performance, security, and functional testing to ensure equivalence and resilience.
A careful, phased migration, often using a 'canary' release or parallel-run strategy to ensure zero disruption.
Technologies proven in Tier-1 environments
Engage our core modernization experts to roadmap your transition from legacy to cloud-native.