Enterprise-scale cloud transformation for a regulated organization with 15+ years of legacy on-prem infrastructure — BaFin-ready cloud platform

Challenge / Problem

The end client was operating a long-standing private data center environment tightly coupled to an existing provider. High security and compliance requirements (BaFin-ready), combined with the need for scalability, modularity, and automation, made a full migration to Azure essential.

  • Full migration from a long-standing private data center to Microsoft Azure
  • Legacy IT landscape deeply tied to legacy provider infrastructure
  • High security and compliance expectations (BaFin-ready)
  • Need for a scalable, modular, fully Azure-native platform
  • Desire for full Infrastructure as Code (IaC) and DevOps enablement

Our Approach

End-to-end architecture and transformation strategy Together with CANCOM, CloudAstro took responsibility for the end-to-end architecture, planning, and transformation. The goal was to design a future-proof, modular, and fully automated Azure platform aligned with regulatory requirements.

  • Deep service and dependency analysis of legacy systems
  • Design of a future-proof, modular Azure reference architecture
  • Alignment of security, identity, and compliance models with BaFin requirements
  • Adoption of a DevOps-first mindset with full automation and transparency

Implementation

Incremental migration and Azure-native platform build-out The migration was executed incrementally to ensure stability and operational continuity, while a fully Azure-native target platform was built and automated in parallel.

  • Incremental migration of services with re-architecture where required
  • Build-out of a fully Azure-native landscape
  • Development of a scalable permission and identity governance model
  • Definition of all infrastructure via Terraform and automated pipelines
  • Delivery of a cloud foundation serving as the company’s new digital core

Results

Operational stability, compliance, and efficiency at scale The new platform enables secure, stable, and highly automated cloud operations while significantly reducing operational overhead.

  • 100+ services assessed and migrated within a 12-month transformation timeline
  • Zero unplanned downtime during provider transition and migration
  • BaFin-ready Azure environment certified for financial-sector operations
  • 80% automation coverage via Infrastructure as Code and CI/CD pipelines
  • 40% reduction in operational overhead through Azure-native services and DevOps enablement