Case Studies
Real results from engineering teams using QuickCloud to migrate legacy apps, cut cloud costs, and modernize architecture — without rewrites.
Disclaimer: These case studies represent real customer outcomes. Implementation complexity and results vary based on your specific environment, source systems, and team size.
Mainframe Modernization
App Modernization
IAM Migration
Database Migration
Security & Cost
QA Automation
Performance Testing
Global Bank Migrates 40-Year-Old COBOL Systems to AWS
How a leading financial institution migrated critical payment processing systems to AWS with zero downtime and a fraction of the originally estimated timeline.
Challenge:
Legacy COBOL systems handling $2B daily transactions needed modernization without any service interruption.
Results:
- Up to 60% cost reduction
- Zero downtime migration
- 18-month timeline vs 5-year manual estimate
SaaS Platform Decomposes Java EE Monolith Into Microservices in 10 Weeks
AI-powered service boundary detection mapped 800,000 lines of Java EE code into 14 bounded microservices — with pre-flight previews and parallel-run validation at every step.
Challenge:
A B2B SaaS company had outgrown its Java EE monolith — deployment risk was high, teams were blocked, and no consulting firm could quote under 18 months. They needed a deterministic path to microservices without a full rewrite.
Results:
- 14 microservices extracted from a single monolith
- Pre-flight preview caught 23 hidden dependencies
- Full rollback available throughout — zero forced cutovers
Federal Agency Migrates RACF to Azure Active Directory in 90 Days
A US federal agency migrated 18,000 RACF user accounts and 4,200 resource profiles to Azure AD with full privilege mapping validation and zero unauthorized access events.
Challenge:
18,000 active RACF user accounts with complex SPECIAL and OPERATIONS privilege hierarchies needed to be migrated to Azure AD while maintaining existing access controls and generating a defensible audit trail.
Results:
- 18,000 users migrated in 90 days
- Zero unauthorized access events
- FedRAMP-ready audit trail generated
Regional Insurance Group Migrates 12TB DB2 Warehouse to Snowflake
AI-powered schema mapping and CDC-based zero-downtime migration moved 12TB of actuarial and claims data from DB2 to Snowflake in under six weeks.
Challenge:
12TB DB2 data warehouse supporting actuarial models and claims processing needed migration to Snowflake for real-time analytics, with no tolerance for data loss.
Results:
- 12TB migrated in 6 weeks
- Zero data loss — 100% quality score
- Up to 70% query performance improvement
Healthcare Provider Achieves SOC 2 Compliance in 4 Months
Automated security controls reduced audit prep from 6 months to 4 months while enabling continuous compliance monitoring across three cloud environments.
Challenge:
Multi-cloud environment needed SOC 2 Type II certification for new customer contracts.
Results:
- 4-month compliance timeline
- Up to 90% reduction in manual effort
- Continuous monitoring enabled
E-Commerce Company Saves $2.4M in Annual Cloud Costs
Real-time monitoring and automated optimization cut cloud spending by up to 45% across five AWS accounts without any performance impact.
Challenge:
Uncontrolled cloud spending across 5 AWS accounts with no visibility or governance framework.
Results:
- Up to $2.4M annual savings
- Up to 45% cost reduction
- Zero performance degradation
Telco Validates 6,000 Regression Tests Before Mainframe Cutover
TN3270 session recording and AI-powered field mapping generated a 6,000-test regression suite that caught 47 business logic defects before the production cutover.
Challenge:
A major telco needed to validate that migrated billing and provisioning systems matched mainframe behavior exactly, across millions of daily transactions, before the point-of-no-return cutover.
Results:
- 6,000 regression tests auto-generated
- 47 critical defects caught pre-cutover
- Load tested at 10× peak traffic capacity
More case studies coming soon as our customers go live.
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