Seamless Legacy Migration for Insurance Provider

Client Profile

• Industry: Healthcare & Life Sciences

• Company Size: 34,000+ employees

• Location: London, UK

• Challenge: Migrating from costly on-premise Teradata to Snowflake while ensuring zero business disruption

The Challenge

A major healthcare insurance provider was operating on aging Teradata infrastructure that required $8M in annual maintenance, lacked scalability for growing data volumes, and created data silos across the organization. The technical debt was mounting, and the company needed to modernize without disrupting critical member services, claims processing, or regulatory reporting.

Key Pain Points:

• $8M annual on-premise infrastructure costs

• 6-month backlog for new analytics requests

• Data silos preventing enterprise-wide insights

• Complex stored procedures requiring conversion

• Regulatory compliance requirements during migration

• Limited Snowflake expertise in-house

The Solution

Alive Technolabs executed a comprehensive migration strategy:

Phase 1: Discovery & Planning (Weeks 1-4)

• Conducted comprehensive assessment of 15TB Teradata environment

• Mapped 2,400+ stored procedures and 850 ETL jobs

• Designed Snowflake architecture aligned to business domains

• Established parallel processing strategy for zero-downtime migration

• Created detailed data governance framework

Phase 2: Automated Migration (Weeks 5-12)

• Deployed Alive Technolabs' proprietary migration accelerators

• Converted SQL stored procedures to Snowflake-native syntax

• Implemented parallel data sync between Teradata and Snowflake

• Established automated regression testing framework

• Migrated historical data with full audit trails

Phase 3: Optimization & Cutover (Weeks 13-16)

• Right-sized warehouses for production workloads

• Implemented role-based access controls (RBAC)

• Trained data team on Snowflake best practices

• Executed phased cutover by business domain

• Decommissioned legacy Teradata environment

The Results

• 100% successful migration of all data and processes

• Zero business disruption during 16-week migration

• $6.4M annual cost savings (80% reduction in infrastructure costs)

• 5X faster query performance on critical actuarial models

• 3-week reduction in new analytics request turnaround time

• Full regulatory compliance maintained throughout migration

• 85% credit utilization efficiency achieved post-migration

Migration Statistics

• 15TB of historical data migrated

• 2,400 stored procedures converted

• 850 ETL jobs modernized

• 450 business intelligence reports transitioned

• 200+ users trained on new platform

Client Testimonial

"Alive Technolabs made what seemed impossible look routine. Their migration methodology eliminated risk while delivering benefits ahead of schedule. We're now positioned for the next decade of growth." — CIO, Healthcare Insurance Provider