Case Study
UST delivers zero-downtime modernization, driving 30% lower maintenance and 20% higher productivity for a global Telco
OUR CLIENT
This global telecommunications organization operates large-scale wireless and connectivity networks, delivering voice, messaging, data, and high-speed connectivity services to consumers and enterprises. The company supports complex, high-volume operations and relies on mission-critical care platforms to manage daily service workflows, compliance activities, and customer support at scale.
THE CHALLENGE
The client faced a growing business risk from an aging application foundation. End-of-life frameworks limited the ability to meet evolving security standards, while lack of modern identity and access management (IAM) controls increased exposure. Meanwhile, support teams spent too much time on regressions and recurring fixes. Therefore, the client wanted a secure upgrade aligned with enterprise standards and existing systems.
The organization needed to modernize the platform without disrupting business-critical workflows, while aligning the application to enterprise security standards and long-term operational needs.
THE TRANSFORMATION
UST designed a business-first modernization approach by upgrading from legacy .NET Framework to modern .NET with short, staged releases, and compatibility testing. UST engineers implemented OpenID Connect (OIDC) implementation integrating an enterprise IdP flow.
A JWT token authentication and authorization strengthened access controls. In parallel, the team completed code refactoring and optimization to retire unused features. As a result, the solution supported improved maintainability and reduced technical debt. All of this resulted in a modern, secure application platform that supports scalable architecture for future integrations and growth.
THE IMPACT
By modernizing a mission-critical care platform, the organization reduced operational risk, improved efficiency, and strengthened security while maintaining uninterrupted business operations. Specific impact includes:
- 30% lower maintenance effort and reduced operating costs freed teams from reactive support work.
- 20% higher productivity enabled teams to deliver enhancements faster and focus on business priorities.
- 40% stronger security posture reduced enterprise risk and improved compliance with identity standards.
- Zero downtime modernization protected revenue-critical care operations and avoided customer disruption.
- 30% less technical debt improved agility and lowered long-term platform risk and cost.
If your organization is managing business risk tied to aging applications, explore how UST’s Application Modernization solutions help reduce operation drag, strengthen security, and modernize mission-critical platforms without disruption.