How to achieve 99.999% platform uptime

Achieving 99.999% uptime in financial platforms, as discussed by Arunkumar Ganesan at the LEAP 2026 conference, involves creating highly resilient and standardized systems. CapitalOne addressed its previous challenges of fragmented tools and duplicate solutions by building foundational platforms with common capabilities, which promote reuse and innovation. The architecture is crucial, emphasizing the elimination of single points of failure through multi-region deployments and microservices that are independent yet cohesive within business domains. Mandatory resiliency standards such as regional autonomy, automated failover, and strict recovery objectives are set to ensure high availability. Non-architectural factors like poison pill requests, observability standardization, and continuous resilience testing in the CI/CD pipeline are also vital to maintaining service reliability. By implementing these strategies, CapitalOne not only ensures customer trust and competitive advantage but also compliance and a strong company reputation.