Migration Discovery & Planning
Assessed the existing GCP environment, identified workload dependencies, and defined a phased migration strategy with validation and cutover plans.
- Geography:
- India
- Industry:
- Financial Services
- Solution:
- Cloud
- Services:
- Cloud Migration
- Employee size:
- 50+
The client
The customer is a leading organization in the Financial Services industry, operating business-critical digital platforms that support investment operations, analytics, reporting, and internal financial workflows. These workloads demand high availability, strong security controls, data integrity, and predictable performance due to the sensitive nature of financial data and regulatory expectations. As part of its cloud optimization and modernization initiative, the customer decided to migrate its existing workloads from Google Cloud Platform (GCP) to Amazon Web Services (AWS). The primary objectives were to improve scalability, strengthen security posture, standardize operations on AWS, and leverage AWS-native migration and automation capabilities—all while ensuring minimal downtime and zero critical data loss.
Client requirements
- Time-Bound Cloud Migration Complete the migration of 15 production workloads from GCP to AWS within a strict one-week timeline while minimizing business disruption.
- Zero Data Loss & Business Continuity Ensure secure replication, controlled cutover, and uninterrupted availability for mission-critical financial applications.
- Scalable AWS Infrastructure Build a secure, highly available AWS environment aligned with AWS best practices and capable of supporting future growth.
- Operational Standardization Standardize cloud operations using AWS-native services to improve automation, governance, and long-term manageability.
- Performance & Security Optimization Strengthen infrastructure security and maintain high performance for sensitive financial workloads.
- Low-Risk Migration Execution Deliver a phased migration with comprehensive testing, validation, and rollback readiness to ensure a smooth transition.
Our approach & solution
enreap executed a phased migration strategy using AWS Application Migration Service (MGN), covering discovery, AWS environment setup, continuous replication, test migration, and controlled cutover. The approach ensured minimal risk, zero critical data loss, and seamless transition, while maintaining clear alignment with customer-managed application and database responsibilities.
AWS Foundation Setup
Established a secure AWS foundation with VPC, subnets, gateways, IAM roles, and MGN staging environment aligned with best practices.
Migration Execution & Validation
Enabled continuous replication, performed test migrations, validated OS and application readiness, and resolved issues prior to production cutover.
Controlled Production Cutover
Executed the migration within the planned maintenance window using the latest replicated data, ensuring minimal disruption.
Auto Scaling & Operational Readiness
Configured and validated Auto Scaling for eligible workloads, delivering a secure, scalable, and production-ready AWS environment.
Continuous Server Replication
Migrated 14 Ubuntu and 1 Windows server using AWS Application Migration Service (MGN) with continuous data replication.
Value delivered
- Seamless migration of 15 workloads to a stable, secure, and fully operational AWS environment
- Zero critical data loss with minimal downtime during controlled cutover
- Enhanced scalability with Auto Scaling and AWS-native architecture
- Improved security and governance aligned with AWS best practices
- Faster adoption with successful UAT, documentation, and knowledge transfer
- Increased operational independence for internal teams post-migration
Technology stack
GCP to AWS Cloud Migration for a Financial Services Organization
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GCP to AWS Cloud Migration for a Financial Services Organization