Writes, maintains and updates programs which control the overall functioning of computers.

Tasks Include:

• develops specifications for enhancements in the operation of computer and telecommunications system software
  
  
• determines program design, and writes system programs in computer languages or machine code
  
  
• tests the validity and logic of system programs

• modifies, amends and updates software programs and database structures
  
  
• prepares documentation on the use of system software by other information technology personnel
  
  
• may contribute to the development of new software in a mainframe, personal computer or local area network environment