Global Financial Services Firm

SAP HANA Cloud Migration

This multinational financial services company needed to migrate their mission-critical SAP HANA environment to AWS to improve scalability, reduce costs, and enhance disaster recovery capabilities.

40%
Infrastructure Cost Reduction
99.99%
System Uptime Post-Migration
60%
Faster Disaster Recovery

Challenge

The client was operating a complex SAP HANA environment on aging on-premises infrastructure that was expensive to maintain and difficult to scale. They faced challenges with:

  • High operational costs of legacy hardware
  • Limited scalability to handle growing transaction volumes
  • Complex disaster recovery procedures with lengthy RTO/RPO
  • Lack of environment standardization across regions

Solution

I designed and implemented a comprehensive migration strategy that included:

  • AWS Transit Gateway architecture for secure connectivity
  • Multi-AZ deployment for high availability
  • Infrastructure as Code using Terraform for standardized environments
  • Custom automated backup and recovery solutions
  • Zero-downtime migration approach using AWS Database Migration Service

Results

The migration was completed ahead of schedule with zero business disruption, resulting in:

  • 40% reduction in infrastructure costs through right-sizing and reserved instances
  • Improved system performance with 35% faster transaction processing
  • Enhanced disaster recovery with cross-region replication
  • Standardized environments across all regions, reducing operational complexity
  • Automated scaling capabilities to handle peak workloads without manual intervention
AWS SAP HANA Migration High Availability Terraform

E-Commerce Platform

DevOps Transformation & Containerization

A rapidly growing e-commerce platform needed to modernize their deployment processes and infrastructure to support their expanding business and seasonal traffic spikes.

95%
Reduction in Deployment Time
300%
Increased Release Frequency
50%
Reduced Infrastructure Costs

Challenge

The client was struggling with:

  • Manual, error-prone deployment processes taking days to complete
  • Monolithic application architecture limiting scalability
  • Inconsistent environments causing production issues
  • Inability to handle traffic spikes during promotional events
  • High infrastructure costs due to over-provisioning

Solution

I implemented a comprehensive DevOps transformation that included:

  • Containerization of applications using Docker
  • Orchestration with AWS ECS for automated scaling
  • CI/CD pipeline implementation with AWS CodePipeline
  • Infrastructure as Code using Terraform
  • Automated testing integration and blue-green deployments
  • Comprehensive monitoring and alerting with CloudWatch

Results

The DevOps transformation delivered impressive results:

  • Deployment time reduced from days to minutes
  • Release frequency increased from monthly to multiple times per day
  • 50% reduction in infrastructure costs through auto-scaling and right-sizing
  • Successful handling of Black Friday traffic (400% normal load) with zero downtime
  • Dramatic reduction in production issues due to environment parity
  • Improved developer productivity and satisfaction
DevOps Docker ECS CI/CD Terraform

Healthcare Technology Provider

Security & Compliance Optimization

A healthcare technology provider needed to strengthen their cloud security posture and ensure compliance with HIPAA and other regulatory requirements while maintaining operational efficiency.

100%
Compliance Achievement
85%
Reduction in Security Findings
30%
Faster Compliance Audits

Challenge

The client was facing critical security and compliance challenges:

  • Non-compliance with HIPAA security requirements
  • Inconsistent security controls across environments
  • Manual, time-consuming compliance reporting
  • Lack of visibility into potential security vulnerabilities
  • Inefficient access management processes

Solution

I implemented a comprehensive security and compliance framework:

  • Zero Trust security model implementation with AWS IAM
  • Multi-account AWS architecture with Control Tower
  • Automated compliance monitoring and reporting
  • Encryption of data at rest and in transit
  • Security event logging and alerting
  • Automated vulnerability scanning and remediation

Results

The security and compliance implementation delivered significant outcomes:

  • Full HIPAA compliance achieved and verified by external auditors
  • 85% reduction in security findings from automated scans
  • Streamlined audit processes reducing compliance reporting time by 30%
  • Improved security posture with automated detection and remediation
  • Enhanced data protection with comprehensive encryption
  • Security automation allowing engineers to focus on innovation
Security Compliance HIPAA Zero Trust AWS Control Tower

Client Testimonials

What my clients say about working with me

"Ranga is an exceptional cloud architect who combines deep technical knowledge with a strategic business mindset. His methodical approach to our AWS migration ensured a smooth transition with zero downtime. He not only delivered on technical requirements but also provided valuable insights that helped us optimize our cloud spend."

Tyler Eastridge

COO, AceMQ

"Working with Ranga on our DevOps transformation was a game-changer. His expertise in containerization and CI/CD pipelines enabled our team to deliver features much faster and more reliably. What impressed me most was his ability to transfer knowledge to our team, ensuring we could maintain and extend the solution long after his engagement ended."

Syed Fahad

Director of Engineering, ThinkTech

"It's a great experience working with Ranga. He's quite technical, flexible and possesses good communication skills. He understands the requirements very well and delivers a solutions in an effective way that actually solves the problem. I'm looking forward to a continuous collaboration with him in the future as well. Highly recommended!"

Andy Wilson

Director of Engineering, Idera Inc

Ready to Achieve Similar Results?

Let's discuss how I can help your organization optimize cloud infrastructure, implement DevOps practices, or enhance security and compliance.

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