My field of work from July, 2011 has been in Quality and Assurance for server side of my product.
Initially I worked on
Product installation process verification / testing.
Database patch testing.
WebLogic Server patch testing.
Oracle Outside-In patch testing.
Since October, 2011, I was mainly involved in
API automation & testing : Writing JUnit tests (in Java) for the server APIs provided by the product.
Performance testing : Writing java code to simulate the client.
Apart from these, I worked on general product / new features testing in background.
I went on for higher studies in June 2012.