StarzHD set out to replace a mission-critical authentication and user management backend that had been delivered by an external vendor and lacked proper documentation. The goal was not a simple migration, but a gradual, low-risk replacement that would improve reliability, performance, and long-term scalability — without disrupting active users. CyberHULL partnered with StarzHD to reverse-engineer the existing system and re-architect it into a cloud-native, multi-region, highly resilient platform capable of handling authentication, authorization, geolocation validation, and sensitive user data at scale.
The key obstacles we needed to overcome to transform the digital experience.
Handling high-volume authentication & authorization requests with real-time geolocation and access checks.
Securely storing and processing sensitive user and content data across multiple AWS accounts with private service communication.
Supporting multi-region failover with near-zero downtime while migrating from on-premise infrastructure to cloud.
Replacing undocumented vendor logic without functional regressions while remaining operational during third-party service outages.
Meeting GDPR compliance requirements without interrupting live traffic.
