- Oracle Database Administrator (DBA) 9i, 10g, 11r2, 12c, 19c, RAC, Perfomance Tuning, Backup&Restore, Cloud Control.
- UNIX Administrator (AIX, SOLARIS, HP-UX)
- LINUX Administrator (SLES, REDHAT, others)
- NOVELL Administrator (Netware, OES)
- SAN, Storage, Backup (IBM DS, DELL, HITACHI, EMC, HP EVA – 3PAR, HUAWEI, Netbackup, IBM Tivoli, HP Data Protector)
- Expert HW, OS, and SAN infrastructure knowledge (IBM, HP, DELL, HUAWEI)
- Virtualization: IBM PowerVM, Vmware, HyperV, Oracle VM