IPA: /ˈprəʊɡræmə/
KK: /ˈprɒɡræmər/
A person who writes computer programs or software.
The programer created a new application for mobile devices.
Programmer → The word is formed from "program" (from Greek "programma", meaning a written public notice or a plan) and "-er" (meaning a person who). A programmer is a person who creates or writes programs, particularly in the context of computer software.
Think of a 'program' as a plan or set of instructions, and remember that a 'programmer' is someone who creates those plans.