- Era UPT PUSKOM (MS DOS, Novell Netware, Foxpro 2.6, Windows 95/97/98/XP)
- Era DSI / DSIK (Linux Redhat, Centos, VMWare, Windows Server, MySQL, PHP, Oracle, C#, C++, Delphi, PHP Ci, Laravel, cPanel Hosting, dll)
- Era DSID (Proxmox, PostgreSQL, Microservices, Mobile Apps, dll)