System engineer focused on z/OS, with experience in the following subjects:.

- VTAM and TCP/IP for z/OS configuration and operation.

- IBM z/OS administration, JCL, JES2, HMC.

- CICS Transaction Server for z/OS configuration.

- IBM system z, Parallel Sysplex and zEnterprise architecture.

- Network security managed by RACF, intrusion detection, certificates management, SSL, TLS, AT-TLS, IPSEC.

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Courses taught by Fran Rubi