- Amanda Mahoney
- January 27, 2026
Case Study: Breaking Through with Traceable Mainframe Modernization
For state governments, modernizing legacy mainframes is often a high-stakes necessity driven by the need for better security and lower maintenance costs. That’s why state agencies seek out reputable modernization partners with experience working in highly regulated environments.
Karsun Solutions, the enterprise modernization experts behind ReDuX, recently worked with one such partner, demonstrating how Agentic AI can revive complex migration projects and deliver tangible value to the public sector. Karsun shared this ReDuX success story as a mainframe modernization case study on its blog.
The Modernization Challenge
A state agency launched a critical initiative to convert its legacy COBOL system to a modern, cloud-based platform. However, as requirements evolved one of the systems integrators working on a legacy subsystem faced a new challenge. The original tooling used to automate code translation could not meet the state’s new requirement for C# code. In addition to offering only COBOL to Java translation, that tool did not provide traceability. Thus the integrator’s agency customer could not validate how the old code mapped to the new system.
The AI-Powered Solution
The project was rescued using the ReDuX platform. This AI-driven approach analyzed the legacy ecosystem using its blueprint agents. Next it transformed COBOL to C#, JCL to cloud-native workflows, and DB2 to MS SQL Server. Moreover, it produced the one-to-one traceability requested by the customer.
Top Benefits for State Government Customers
In addition to meeting the code and traceability requirements set forth by the customer, ReDuX’s capabilities offer systems integrators benefits that go beyond translation. These include:
- 100% Traceability and Auditability: ReDuX produces verifiable, one-to-one mapping of every legacy asset to the new modern code. This ensures the new system is fully transparent, auditable, and easier to validate than “black box” automated solutions. Moreover, the initial legacy analysis provides insights into potential pitfalls like dead code reducing the likelihood of security issues later in the modernization process.
- Tailored Flexibility: Rather than being forced into a vendor’s preferred coding language, technology contractors can ensure their public sector customers receive a solution that is adapted to their requirements. In this case study, the team was ultimately generated not only modern C# code but Angular front-ends that mimicked the legacy workflows, minimizing disruption for state employees.
- Cloud-Native Security & Efficiency: Using tools like ReDuX, modernization teams can accelerate migration to the cloud up to four times faster! By successfully migrating to AWS, the agency secured the benefits of a cloud-native environment. These include enhanced security, data redundancy, and reduced long-term maintenance costs.
The ReDuX platform’s AI-powered modernization combined with work from trusted partners is a winning combination for state agencies. To get started with your journey, learn more about Teaming with ReDuX.
Book a Demo to learn how 15+ years of public sector experience led to the design of a platform capable of handling the most complex government modernization initiatives.
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