50+ On-Premise Kubernetes Clusters in a Private Cloud, 500+ Compute Nodes, 10+ Istio Meshes, and 2 years of joint efforts with IBM. This is Sberbank’s journey from the technology preview stage to a production-grade Istio mesh installation. Joint speech from IBM and Sberbank representatives will cover the history of their collaboration in detail: key faced problems and solutions, main architectural decisions, and plans for the future.