To Whom It May Concern:

 

　　This is to confirm that Mr. XXX has worked as a full-time system analyst in the NY University since Jun XXXX(or This letter is to verify that Mr. XXX worked as an chemist from July XXXX to Sept. XXXX). Mr. X's main duties and responsibilities are as follows:

 

　　Design, develop and install various computer hardware, software and network systems for banks.

 

　　Determine and analyze the requirements of each system project into related componets solved through the application of computer technology.

 

　　Write specifications for computer programs, and test and implement programs for network systems and control systems.