CASE STUDY
Assembler to Java Migration and Modernization on AWS Cloud
Industry | Financial Services
Technology | AWS Cloud, Java
Location | Global
A global financial services provider, handling millions of transactions daily, was dependent on legacy Assembler programs running on mainframe systems. As the business grew, the client faced high maintenance costs, limited scalability, and a shrinking talent pool of Assembler developers.
The need for modernization became critical, and the company decided to migrate these programs to Java on AWS Cloud, aiming for a scalable, cost-effective, and future-proof architecture.

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Challenges

Legacy System Complexity: The tightly coupled Assembler programs made it challenging to migrate without disrupting business operations.

High Costs: Maintaining mainframe infrastructure was expensive due to hardware, software licensing, and operational costs.

Limited Expertise: A shrinking pool of Assembler developers made maintaining and upgrading the system difficult.

Scalability Issues: The mainframe environment struggled with increasing transaction volumes and lacked cloud scalability.

Key Outcomes
50%
Cost Reduction by moving away from mainframe hardware.
30%
Improved Performance due to efficient cloud-native architectures.
Enhanced Scalability
using AWS auto-scaling capabilities allowed handling increased transaction volumes.
Solutions

Automated Refactoring: Used tools like Raincode and Micro Focus to convert Assembler code into Java, preserving business logic.

Cloud-Native Architecture: Refactored Java applications were designed using microservices, hosted on AWS services like EC2, Lambda, and RDS.

Scalable Infrastructure: Leveraged AWS services for horizontal scaling, including EC2 Auto Scaling and Amazon RDS Read Replicas.

Security and Compliance: Implemented AWS IAM for role-based access control, KMS for data encryption, and CloudTrail for audit logging.

What Customer Say about RoyalCyber
Congratulations, and a big thank you to everyone who worked on the project upgrade and successfully implemented it. The team did a great job working through all the tasks.
Craig McCroskey
Craig McCroskey
Sr. Director IT

30%

Improvement in Performance

Audience

  • Executives, CTOs, Director
  • IT Consultants
  • Business Analysts
  • Project Managers
  • IT Project Coordinators
  • Architects and Specialists
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