Case Study

Telco Unlocks Real-Time Analytics on Snowflake

15+ legacy data warehouses consolidated onto Snowflake

SnowflakedbtApache Kafka
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Executive Summary

A tier-1 telco migrated 15+ legacy data warehouses to Snowflake, enabling real-time network performance analytics and reducing reporting latency from hours to seconds.

  • Industry: Telecommunications
  • Geography: India
  • Capability: Data Practice Modernisation
  • Technologies: Snowflake, dbt, Apache Kafka, Databricks
  • Key Outcome: 15 legacy data warehouses consolidated into one platform

The Challenge

The operator's data landscape was fragmented and unmanageable. Key pain points included:

  • Fragmented analytics estate spanning 15+ legacy on-premises data warehouses
  • Reporting latency of 4–12 hours preventing real-time network management decisions
  • Significant data quality issues arising from disconnected siloed systems across teams

Delivery

Saints & Masters designed a unified data platform to replace the fragmented legacy estate:

  • Designed a unified Snowflake Data Cloud architecture to consolidate all 15 legacy source systems
  • Migrated and transformed all data sources using dbt with comprehensive data quality validation
  • Implemented real-time Apache Kafka ingestion pipelines for live network telemetry and event streams
  • Delivered a governed semantic layer in Snowflake accessible to 300+ analysts across the organisation

Results

The transformation delivered measurable excellence across the enterprise:

  • 15 legacy data warehouses consolidated into one platform
  • Reporting latency reduced from hours to under 30 seconds
  • 300+ analysts now working from a single governed data source
  • Real-time network fault detection enabled for the first time
  • 40% reduction in data infrastructure operational costs

Deep Dive into the Outcomes

Get the detailed PDF report covering the complete problem-solution-impact lifecycle and measurable ROI metrics for this project.