Enterprise Cloud Migration: AWS Infrastructure Transformation

Executive Summary

A major financial institution with legacy on-premises infrastructure faced rising costs, limited scalability, and increasing operational complexity. With 200+ applications spanning trading platforms, customer portals, and risk management systems, migration required meticulous planning and flawless execution.

Badugu orchestrated a 14-month cloud migration to AWS that reduced infrastructure costs by 35%, improved system uptime to 99.99%, and maintained 100% regulatory compliance throughout the transition. The company now operates with modern cloud-native infrastructure, faster deployment cycles, and robust disaster recovery capabilities.

The Challenge

Business Pressures

• Infrastructure costs consuming 35% of IT budget ($45M annually)
• Aging hardware requiring frequent replacements
• Limited scalability for business growth
• Slow deployment cycles (6-8 weeks for new services)
• Competitive disadvantage vs. cloud-native competitors

Technical Complexity

• 200+ interconnected applications
• Mix of legacy systems and newer applications
• Complex compliance requirements (PCI-DSS, SOC 2, GLBA)
• 24/7 operations (no downtime tolerance)
• Data residency and security considerations

Our Cloud Migration Strategy

6R Cloud Migration Framework

Rehost (Lift & Shift)

120 applications moved with minimal changes for quick wins

Replatform

50 applications optimized for cloud without code rewrite

Refactor/Re-architect

20 critical apps modernized for cloud-native architecture

Repurchase

5 applications replaced with SaaS solutions

Retire

5 redundant applications decommissioned

Cloud Architecture

Multi-AZ deployment across 3 availability zones for high availability and disaster recovery. VPC with public/private subnets, security groups, NACLs, and VPN for secure on-premises connectivity. Load balancers, auto-scaling groups, and CloudFront CDN for performance.

Implementation Timeline

Months 1-2

Assessment & Planning

Complete infrastructure audit, application portfolio analysis, compliance requirements review, and detailed migration roadmap development.

Months 3-5

Foundation & Pilot

AWS account setup, networking configuration, security implementation, and pilot migration of 10 non-critical applications.

Months 6-12

Main Migration Waves

Wave 1: Non-critical applications. Wave 2: Important but non-essential systems. Wave 3: Critical trading and operational systems with detailed cutover planning.

Months 13-14

Optimization & Cutover

Final optimization, performance tuning, on-premises infrastructure decommissioning, and complete AWS adoption.

Results & Business Impact

$14.7M

Annual Cost Savings

35% reduction in infrastructure costs

99.99%

System Uptime

From 97%, less than 5 min/month downtime

60%

Faster Deployments

From 6-8 weeks to 2-3 weeks

100%

Regulatory Compliance

All controls validated throughout

Key Technologies Used

Compute

EC2 instances
Auto Scaling
Load Balancers
CloudFront CDN

Storage & Database

RDS Multi-AZ
DynamoDB
S3 with encryption
EBS volumes

Security

VPC & Subnets
Security Groups
IAM policies
CloudTrail logging

Migration Tools

AWS DMS
AWS MGN
VM Import/Export
DataSync

Client Testimonial

★★★★★

"Badugu's cloud migration expertise proved invaluable. They understood the complexity of our financial systems and managed the migration with surgical precision. Zero disruption to our operations, all compliance requirements met, and we're saving millions annually. Their team's professionalism and deep AWS knowledge gave us complete confidence throughout the process."

Susan Martinez

VP Infrastructure, Financial Services