Mainframe FOCUS Mainframe COBOL IBM JCL

COBOL JCL Unix Scripting REXX SQL

CICS Cobol JCL TSO MQ

COBOL CICS VSAM JCL DB2

Physical design engineer STA PNR EMIR TCL

C C++ Java SQL/MP COBOL

Active Directory TCP/IP DNS DHCP HTTP

COBOL JCL SQL SDLC Mainframe Developer

TCP/IP OSI model routing switching subnetting

TCP/IP OSI model routing switching subnetting

Python PowerShell Bash TCP/IP HTTP/HTTPS

Ethernet WAN Perl Bash TCL

JCL WebFocus Focus

VLAN VXLAN PORT-CHANNEL EVPN MLAG

Core Java J2EE JSP Servlets Java Script