Summary
Jean-bernard Francois is an Expert MySQL DBA with over a decade of experience designing, tuning and operating high-availability MySQL/MariaDB platforms for banking, telecom and payments companies. He currently manages multi-terabyte, multi-million-transaction production clusters at Verifone and dbSQWare, driving migrations (e.g., MariaDB 10.1→10.6 and TokuDB→RocksDB), capacity planning and PCI-DSS aligned security. His hands-on background spans Oracle, PostgreSQL, MongoDB and related Linux/VMware infrastructure, with a strong focus on replication, Galera clustering and backup/recovery strategies. Known for pragmatic architectural recommendations and automation (shell tooling and operational procedures), he regularly partners with dev teams to optimize SQL and ensure 24/7 availability. Based in Greater Paris, he combines deep production experience with ongoing technology watch to prepare systems for billion-transaction scale. An understated strength is his history of working across sectors—defense, media, banking and telecom—bringing cross-domain resilience practices to merchant payment systems.
10 years of coding experience