Janos Rozsnyai

Led IMS modernization efforts and database performance tuning to ensure optimal response times for enterprise-level workloads. • Managed and optimized IMS queues, significantly increasing system stability and availability for global clients. • Provided high-level technical support and debugging for developers using IMS log and trace data analysis. • Executed complex system changes and maintained 24/7 system integrity through proactive monitoring and on-call support.

Infrastructure Strategy: Configured and managed IMS in Parallel Sysplex environments, ensuring high availability and seamless data sharing. • Lifecycle Management: Successfully executed migrations of IMS versions and integrated third-party tools (BMC, CA). • Risk Mitigation: Directed annual Disaster Recovery (DR) tests, consistently meeting RTO/RPO targets for multiple accounts. • Operations Excellence: Maintained and updated critical system documentation and operator manuals to improve team efficiency.

Ensured continuous 24/7 server availability for global customers through proactive monitoring and IPL procedures. • Administered z/VM environments, including networking and storage capacity provisioning.