Financial Services Firm Cuts Cloud Migration Cost by 87% — Delivered in 8 Weeks Instead of 9 Months
A leading financial services firm needed to migrate 40+ applications from on-premise data centers to Azure. Their incumbent SI — a Big Four firm — scoped a 9-month engagement.
The Traditional SI Proposal
- 15-person team: 1 engagement manager, 2 architects, 4 developers, 3 testers, 2 DevOps engineers, 2 analysts, 1 PM
- 9-month timeline with waterfall-style delivery
- $3.2M total engagement cost ($355K/month)
- Senior architects in the sales process — junior consultants would do the actual work
- 6-week ramp-up period before any actual migration began
The Prime Engagement
Prime assigned 1 senior cloud architect with 20+ years of financial services experience. AI agents handled:
- Automated infrastructure assessment and dependency mapping across all 40+ applications
- Code generation for Terraform/IaC templates, container configurations, and CI/CD pipelines
- Automated testing suites — integration, load, security, and regression
- Comprehensive migration runbooks and documentation
- Data migration scripts with validation and rollback procedures
The expert lead made all architectural decisions, handled edge cases, managed stakeholder communication, and ensured zero-downtime cutover.
The Result
Measured Results
- 87% cost savings ($3.2M → $420K)
- Delivered in 8 weeks vs. 9-month SI timeline
- Zero downtime during migration — all 40+ apps migrated successfully
- Same senior architect from scoping through go-live (no bait-and-switch)
- Complete documentation and runbooks generated by AI agents
Why It Worked
The traditional SI needed 15 people because most of the work — writing IaC templates, migration scripts, test suites, and documentation — is repetitive execution work. AI agents handle that at machine speed.
What you actually need is one senior architect who knows the domain, makes the right decisions, and ensures quality. That's exactly what Prime delivers.