At Vanguard Tech Labs, I kept client z/OS production environments dependable by standardizing IPL procedures, recovery runbooks, and operational change controls, reducing unplanned recovery time by 31%. I also maintained z/OS and licensed ISV products with SMP/E across Parallel Sysplex environments.
I tuned JES2 initiators, WLM service definitions, and batch scheduling to shorten overnight batch completion by 18%. I built Git-managed Ansible automation for system checks, configuration changes, and evidence collection.
Earlier, at Apex Circuit Solutions, I supported high-volume z/OS environments with 99.9% availability, and at NXP Semiconductors I supported manufacturing, materials, and financial batch services. I started in mainframe operations at Texas Instruments (TI), supporting JCL, JES2, scheduled workloads, and production recovery.
