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EURUS CASE STUDY

Cloud Infrastructure Migration: Achieving Multi-Cloud High Availability for Finzly Inc.

Client Overview

Finzly Inc. is a U.S.-based fintech company that provides domestic and international payment solutions to banks. Their platform enables seamless financial transactions across multiple channels, helping banks modernize their payment systems and improve customer experiences.

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Problem Statement

01
Service Parity
Replicate AWS infrastructure components with Azure equivalents while maintaining functional consistency.
02
Deployment Consistency
Establish identical infrastructure deployment workflows in Azure matching the existing AWS setup, utilizing Jenkins for CI/CD orchestration.
03
infrastructure as Code Standards
Maintain the existing Terragrunt-over-Terraform approach to ensure manageable, DRY (Don't Repeat Yourself) infrastructure provisioning across both clouds.
04
Serverless Migration
Successfully adapt AWS Lambda functions to Azure Functions despite fundamental architectural differences in deployment models and invocation patterns.

Solution Approach

Eurus was engaged to develop a comprehensive migration strategy that would balance automation, risk mitigation, and operational consistency.

Key solutions
delivered included:

Maintained infrastructure-as-code principles using Terraform and Terragrunt to create reusable Azure modules mirroring AWS configurations, with rigorous version control and state management across both cloud platforms.

Engineered a custom deployment pipeline with automated scripts and Terraform modules to replicate the Serverless Framework experience, providing seamless APIM integration and maintaining compatibility with existing CI/CD infrastructure.
Executed a controlled, five-phase migration approach starting with foundational infrastructure, progressing through stateless and stateful services, traffic management, and final validation, with rollback procedures at each stage.
Architected multi-region HA using Azure Front Door for global load balancing, health monitoring, automatic failover, database geo-replication, and cross-region storage synchronization.
Duplicated existing Jenkins deployment workflows for Azure with parallel jobs, environment promotion workflows, and automated testing stages to ensure deployment consistency.
Maintained transparent collaboration through frequent virtual meetings and progress tracking, ensuring all deliverables were met on time.

Results & Business Impact

Implemented Terraform/Terragrunt IaC to build reusable Azure modules aligned with AWS standards with strict version and state management.

Built a custom serverless deployment pipeline using automated scripts and Terraform to emulate Serverless Framework functionality with seamless APIM integration.

Designed multi-region high availability using Azure Front Door, geo-replication, and cross-region synchronization for resilient global services.

Delivered a structured five-phase cloud migration with controlled rollbacks at each stage for safe progression from core infra to full traffic cutover.

Replicated Jenkins deployment workflows in Azure with parallel jobs, promotion stages, and automated testing for consistent CI/CD operations.

Ensured clear communication and on-track delivery through regular virtual meetings and transparent progress reporting.

Achievements & Impact

  • Accelerated Deployments: The replicated infrastructure automation framework reduced environment setup time from hours to minutes while improving deployment consistency and enabling developer self-service capabilities.
  • Operational Efficiency: The custom Azure Functions deployment solution maintained familiar workflows for developers and reduced build-to-production time by approximately 40% through automated integration and standardized patterns.
  • Successful Multi-Cloud Architecture: The migration established true multi-cloud high availability with optimized infrastructure costs through strategic workload placement.
  • Reliable Delivery: Project execution met all commitments within the agreed timeline with no major incidents, maintaining full transparency through regular reporting and comprehensive documentation.

Tools & Technologies Used

AWS Services Migrated

  • Amazon VPC (networking and security groups)
  • Amazon S3 (object storage)
  • AWS CloudFront (CDN)
  • Amazon API Gateway (API management)
  • Application Load Balancer (Layer 7 load balancing)
  • Amazon EKS (Kubernetes)
  • AWS Systems Manager Parameter Store (secrets)
  • AWS KMS (encryption key management)
  • AWS Lambda (serverless compute)
  • Amazon RDS for PostgreSQL (managed database)

Azure Services Implemented

  • Azure Virtual Network with NSGs and Route Tables
  • Azure Storage Accounts (Blob Storage)
  • Azure Front Door (global CDN and load balancing)
  • Azure API Management (API gateway)
  • Azure Application Gateway (Layer 7 load balancing)
  • Azure Kubernetes Service (AKS)
  • Azure Key Vault (secrets and key management)
  • Azure Functions (serverless compute)
  • Azure Database for PostgreSQL Flexible Server

Automation & DevOps Tools

  • Terraform (infrastructure as code)
  • Terragrunt (Terraform wrapper for DRY configurations)
  • Jenkins (CI/CD orchestration)
  • Serverless Framework (AWS Lambda deployments)
  • Custom deployment scripts (Bash, Python, JQ for Azure Functions)

Client Testimonial

“They are good at what they do. Eurus has automated our AWS cloud infrastructure and delivered the lambda functions as requested. Their team responds to questions and provides timely deliverables. Their talented staff, communication skills, and attitude toward problem-solving are remarkable.

Success Metrics

  • 5.0 / 5.0 rating on Clutch across Quality, Schedule, Cost, and Willingness to Refer
  • 100% milestone completion rate with no delays
  • High client satisfaction for responsiveness and technical depth
  • Ongoing partnership supporting future product enhancements

Conclusion

The collaboration between Finzly Inc. and Eurus Technologies demonstrates how expert cloud automation and strategic migration support can directly enhance operational efficiency and business reliability. By implementing Infrastructure as Code, developing tailored Azure functions deployment solution, and executing a phased AWS-to-Azure migration, Eurus ensured that Finzly’s cloud environment became more scalable, resilient, and aligned with long-term growth objectives.