Legacy Mainframe Application Modernization

Legacy Mainframe Application Modernization

Bridging Legacy Stability with Modern Business Demands

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Leading with Proven Outcomes

70%

Operational Cost Savings

65%

Faster Data Access and Analytics

85%

Legacy Code Reuse

80%

Improvement in System Scalability

Future-Proof Your Enterprise Systems with Modernization Strategies

On-premises mainframe applications are core components that drive essential business operations. Yet, sticking with legacy applications in an AI-driven and cloud-native architecture can put critical processes and crucial data at risk. At Tx, we assist enterprises like yours in transforming core systems with our legacy mainframe application modernization services.

We leverage code refactoring, Micro Focus re-platforming, and intelligent API enablement to unlock performance, extensibility, and cost efficiency. Our modernization approach integrates cloud-native technologies while preserving core legacy logic to deliver agile, scalable, and future-ready systems. Our team of experts maintain the integrity of core legacy logic while modernizing your architecture to support AI, automation, and digital infrastructure.

Future-Proof Your Enterprise Systems with Modernization Strategies

Key Clients

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  • Speak directly with our Digital Engineering experts.

  • Identify AI development opportunities and build a roadmap for success.

  • Get solutions tailored to your unique development challenges.

    Our Legacy Application Modernization Approach

    Our Legacy Application Modernization Approach
    Our Legacy Application Modernization Approach

    Our Legacy Mainframe Application Modernization Solutions

    Hybrid Cloud Integration

    Hybrid Cloud Integration

    We integrate your mainframe systems with public and private cloud environments. This enables workload distribution across AWS and IBM cloud platforms using secure APIs and hybrid orchestration tools like Red Hat OpenShift.

    Mainframe Application Modernization

    Mainframe Application Modernization

    We refactor and replatform your monolithic apps into microservices architectures. Our team assists in maintaining critical COBOL logic to enable faster, CI/CD-driven release cycles.

    Data Modernization

    Data Modernization

    We migrate your legacy datasets to cloud-native warehouses like Amazon Redshift or Azure Synapse. Our experts preserve your data integrity by enforcing governance and enabling real-time access.

    AI-Driven Decision-Making

    AI-Driven Decision-Making

    We enable predictive insights by integrating structured legacy data with AI models to guide your business strategy. Our modernization strategy supports ML integration and explainable AI for regulated environments.

    DevSecOps Transformation

    DevSecOps Transformation

    We embed security into each SDLC stage using GitLab and scanning tools like Fortify and SonarQube. Our approach ensures speed, security, and auditability across your legacy and modern systems.

    Workflow Automation

    Workflow Automation

    We assist you in automating legacy applications' workflows using UiPath, or Apache Airflow (depending on process complexity). Our approach reduces latency and enables dynamic orchestration across mainframes to modern SaaS platforms.

    Technology Partners

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    Why Choose Tx?

    • IP-Led Framework

      Our proprietary framework, Tx-Insights, provides real-time visibility into modernization KPIs by integrating security, testing, and deployment metrics across your pipelines.

    • Zero-Downtime Cutover Strategy

      Our dual-run architecture ensures seamless transition with real-time data sync between mainframe and modern stack, eliminating business disruption.

    • Automated COBOL to Cloud-Native Transformation

      We convert COBOL code into modular, containerized microservices ready for deployment on AWS, Azure, or GCP without manual rewriting.

    • Security and Governance from Day-One

      We embed compliance controls early in the SDLC to ensure your architecture is audit-ready under HIPAA, SOX, or PCI DSS.

    FAQs

    What is legacy mainframe application modernization?

    Legacy mainframe application modernization involves updating or transforming core business systems originally built on mainframe environments, typically using COBOL, JCL, or PL/I. It includes re-platforming, refactoring, API-enabling, or even rewriting applications to work with cloud-native architectures, microservices, and modern development pipelines.

    Why should businesses modernize their mainframe applications?

    Modernizing mainframe applications allows businesses to overcome performance limitations, reduce operating costs, and adapt faster to market demands. It also enables integration with AI, cloud services, and modern APIs.

    What are the main strategies for mainframe modernization?

    The core strategies include rehosting, refactoring, re-architecting, and replacing. Each approach depends on the application’s complexity, business value, and integration needs.

    How do you decide on the right modernization approach?

    Choosing the right approach starts with analyzing the existing system’s architecture, dependencies, data flows, and business criticality. A detailed technical audit helps determine whether rehosting, refactoring, or a full rebuild best aligns with business goals.

    What are the risks of not modernizing legacy mainframe applications?

    Working with outdated mainframe systems can increase downtime and maintenance costs and limit integration with cloud and AI platforms. Over time, a lack of modernization can expose the business to security risks, skill shortages, and compliance gaps.

    Why should I choose Tx for legacy application modernizations?

    Tx combines deep technical expertise in COBOL, DB2, and mainframe architecture with real-world experience in cloud migration, data modernization, and AI integration. Our solutions are tailored to modernize what’s holding you back and avoid the risks of one-size-fits-all strategies.