Legacy Application Modernization for Telecom BPO

Issues:

• Cosmote e-Value was operating 150+ legacy applications built on outdated technologies.
• These systems were costly to maintain, difficult to upgrade, and delivered an inconsistent user experience.
• Adding new features or modifying processes took months due to rigid, code-heavy environments.
• There was a risk of disrupting critical operations during modernization efforts.

Goals:

• Modernize the entire legacy application portfolio swiftly and securely.
• Reduce maintenance costs and consolidate operations onto a unified platform.
• Deliver a consistent, modern user interface across all applications.
• Enable faster development cycles and allow business users to contribute directly to process updates.
• Ensure scalability, cloud-readiness, and minimal downtime during transition.
• Future-proof the system to support emerging technologies like chatbots and advanced analytics.

Problem

Cosmote e-Value was burdened by over 150 outdated legacy applications, leading to high maintenance costs, slow feature delivery, and an inconsistent user experience. These systems were difficult to modify and posed a risk of disruption if replaced all at once—creating a major challenge for modernization at scale

Solution

Jaggle low-code platform was used to rapidly rebuild and replace legacy apps through a centralized, modular approach. With visual development, reusable components, and real-time integration with legacy systems, the team modernized over 150 apps in just 12 months—reducing costs by 40%, improving performance, and enabling agile feature updates with minimal downtime.

• 150+ legacy applications modernized in just 12 months (vs. years with traditional methods)
• Up to 10× faster development cycles using low-code, visual tools, and reusable templates
• 40% reduction in total cost of ownership (TCO) through system consolidation
• Modern, consistent user interface (UI) improved usability and reduced training time
• Incremental rollout ensured smooth transition with minimal downtime or risk
• Business analysts empowered to make logic updates without developer input
• Improved app performance and system stability on a modern architecture
• Cloud-ready and future-proof, enabling easy integration of chatbots, analytics, and other technologies
• Multiple teams collaborated in parallel, accelerating delivery through Jaggle Studio
• Legacy logic made transparent and adjustable, simplifying ongoing maintenance