Moving from legacy SQL systems to the cloud is no longer optional. It’s inevitable. But for financial institutions, this journey is filled with risks: incomplete data, regulatory gaps, and lost business continuity.

A global financial services firm operating in the post-trade regulatory space under MiFID II began migrating its entire transaction reporting database, which contained more than 12 billion records, from legacy SQL infrastructure to a modern cloud environment. The scale of the data, combined with regulatory scrutiny and operational risk, made this a complex challenge. The goal was to preserve data integrity across the full historical dataset while enabling the launch of a new product built on advanced analytics.

Calimere Point was brought in to lead the data assurance framework. Leveraging advanced analytics and automation via Data360 Analyze, we built a solution that:

  • Validated completeness at both volume and record-attribute level
  • Pinpointed variances between source and target data to drive remediation
  • Enabled “what-if” scenario testing prior to cutover to reduce live risk
  • Accelerated migration timeline by reducing the internal QA burden, saving months of resource time
Regulatory Compliance & Transformation Use Case

Lessons from a Landmark Data Migration

Three things we learned migrating 12B+ records for a regulated financial firm:

  1. Assurance isn’t a phase. It’s an architecture.
  1. Tooling matters. Legacy ETL won’t catch subtle, root-level variances.
  2. Granularity beats assumptions. Every attribute must tell the same story in the cloud.

Need to validate your own migration? Download our anonymised case study or contact us for a custom assurance consultation.

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