The candidate of programmer must be enjoy and familiar, have experience and know deep inside of: - OS/400 environment from green screen terminal - CL/400 programming language - Create Physical, Logical/View, Printer, and Display externally described files - Use the SEU/PDM editor to maintain source - Use SDA to maintain display files - Use the source-level runtime debugger (i.e., STRDBG) - Use AS/400 "green screen" menuing and commands to manage jobs, messages, printer output, printers - Define OS/400 library, file, data area, program, and member objects - Define OS/400 msgq, jobq, and outq objects - Define OS/400 user profiles and object authorization - Distinguish between the system and user portions of a library list - Recognize the current library in an OS/400 library list - Given that the RPG program cycle automatically opens files, closes files, reads files, and performs control break processing, identify the RPG cycle components - Use Subfiles to maintain data content from physical file