Hi Sabir,
In my personal experience, I have few guys in current company there were working as system administrator and network administrator then they have landed in SAP Basis and Security administrators.
The ideal would be SAP Netweaver Basis Administrator suits for you because you are going to do same job in Oracle database, MaxDB, OS - Unix or Linux or Windows platform etc (if you have already worked on) and then in SAP specific (SAP activities) like administering, installation, maintenance support etc.
The technical support experience is a biggest and added advantage when you become SAP Netweaver Basis Administrator.
There are courses available as suggested by Colleen. Also, you can go to Training and Certification Shop SAP website and enroll for e-learning and acquire certification because it gives more advantage to you to start a career in SAP Netweaver Basis Administrator. Also, look for SAP Hana certification to acquire the skill because SAP invested and most of the companies planning to implement in next 5 years and it is very hot / more demand in current market.
Best of luck.
Regards
RC Gopi
