I am an Oracle Certified Professional 11g (actually, OCP on all older versions also - 7,8,8i,9i,10g,11g) and Oracle Certified Master with 20+ years of experience working as a DBA with Oracle database versions from 7 to 12. I provide Oracle DBA outsourcing services to clients in my country and abroad, both for Oracle database and Oracle E-business Suite. I have experience of working with Oracle RAC, including administering Exadata. I have experience supporting Oracle databases on many different environments; have extensive experience of supporting Oracle on Linux.