Legacy Modernization

Modernizing Legacy Applications with GTEN Technologies

Transforming Legacy Systems into Scalable, Modern Applications

As enterprises evolve, outdated applications built on legacy Java-based technology stacks can become bottlenecks, limiting scalability, performance, and user experience. GTEN Technologies specializes in modernizing these legacy systems by leveraging the latest frontend JavaScript frameworks, microservices-based backends, and mobile-first approaches to deliver high-performing, scalable, and future-ready applications.

Case Study: Seamless Modernization of a Decade-Old Java Application for a U.S. Fintech

A leading U.S.-based Fintech company relied on a decade-old Java monolithic application that struggled with performance issues, limited scalability, and a poor mobile experience. GTEN Technologies executed a full-scale modernization by:

Adopting a Modern Frontend Framework

Migrated the UI to React.js and Vue.js for a seamless, responsive, and engaging user experience.

Rearchitecting the Backend Using Microservices

Decomposed the monolithic backend into scalable microservices using Spring Boot, Node.js, and GraphQL APIs.

Enabling Cloud-Native Deployment

Deployed the application on AWS and Kubernetes, ensuring auto-scaling, high availability, and cost optimization.

Developing a Mobile App

Built a cross-platform mobile app using Flutter and React Native, allowing customers to access services on the go.

Enhancing Security & Compliance

Integrated OAuth 2.0, SSO authentication, and real-time monitoring to ensure regulatory compliance and data protection.

Ensuring a Smooth Transition with GTEN GAINSS Platform

Leveraged GTEN's GAINSS (Governed AI-Driven Intelligent Software System) to achieve 90%+ test automation, mitigating risks and preventing disruptions during the transition.

Providing KPI-Driven Dashboards for Management

Enabled real-time visibility for stakeholders with self-service dashboards, ensuring data-driven decision-making throughout the modernization process.

GTEN’s Expertise in Legacy Application Modernization

Our modernization approach ensures that enterprises can leverage the latest technology stacks without disrupting existing business operations. Our key expertise includes:

Microservices & API-First Development

Breaking monolithic applications into scalable, modular services for flexibility and performance.

Modern Frontend Technologies

Utilizing React.js, Angular, and Vue.js to deliver fast, intuitive, and interactive user interfaces.

Cloud-Native Architecture

Deploying applications on AWS, Azure, and Google Cloud to improve reliability and cost efficiency.

Mobile-First Development

Building cross-platform mobile applications using Flutter, React Native, and Kotlin for an enhanced customer experience.

AI-Driven Observability & Monitoring

Leveraging Prometheus, Grafana, and AI-powered APM tools to ensure seamless performance.

GTEN’s Proven Framework for Legacy Modernization

We collaborate with engineering and business teams to create a strategic roadmap for modernization. Our framework includes:

Technology & Codebase Assessment

Identifying outdated dependencies, bottlenecks, and technical debt.

Incremental Modernization Strategy

Ensuring a seamless transition from monolithic to microservices without business disruption.

Performance Optimization

Enhancing database performance, caching, and API response times for faster user experiences.

Cloud Migration Planning

Re-architecting applications for containerization, auto-scaling, and cloud-native deployment.

Security & Compliance Enhancements

Implementing zero-trust security models, IAM policies, and data encryption.

Automated Testing & Risk Mitigation

Using GTEN GAINSS for continuous testing, ensuring quality, performance, and security across all layers

Why Enterprises Choose GTEN Technologies for Application Modernization?

With deep expertise in cloud computing, microservices, and frontend modernization, GTEN Technologies helps enterprises:

01

Accelerate Digital Transformation

Moving from outdated technology to scalable, modern architectures.

02

Enhance User Experience & Engagement

Delivering responsive, mobile-friendly applications with lightning-fast performance

03

Reduce Operational Costs & Improve Efficiency

Optimizing cloud resources, reducing infrastructure costs, and automating deployments.

04

Future-Proof Technology Investments

Ensuring long-term scalability and agility with modern frameworks and best practices.

Modernize Your Legacy Systems with GTEN Technologies

At GTEN Technologies, we don’t just migrate applications—we transform them into high-performing, scalable, and future-ready solutions.

to revamp your legacy systems, accelerate innovation, and build cutting-edge applications for the digital era.