z os , Ispf, Omegamon, CICS, Networking Support, DB2, JCL, Rexx, Jes2, Ims, Disaster Recovery, MQ Support, Parallel Sysplex, PCOMM

Ldap, Diameter Protocol, Upgrades, Integration, Wireshark, Soap, Linux, GSM call flows, ONE-NDS SDL node, BM, Troubleshooting, Hlr, VNF, telecommunication core products, Implementation, Telco Cloud, Ss7, Acceptance Tests, Sigtran, GSM, Hss, AUSF-UDM, 5G IMS, DAP, CNF

z os , C, C++, CICS, Mvs, SSL, Ims, Sso, Racf, Machine Learning, Natural Language Processing, Artificial Intelligence, HLASM Assembler, zTPF, IMS DB2, Multi-Factor Authentication, DevOps tooling, Cloud development, PL X, zVM, Agile practices, zVSE, Mainframe security