I am working as z/VSE operating system developer for IBM. My main areas in z/VSE are the Supervisor, Tape I/O including parts of z/VSE Virtual Tape (VTAPE), FCP/SCSI, the z/VSE Capacity Measurement Tool (CMT), and the z/VSE Installation Disk Utility (VSEIDISK).
Disclaimer: My posts and opinions are my own and don’t necessarily represent IBM’s positions, strategies, or opinions.