Reference based on every position on game development.

1. Programmer

   Regardless of the position, a program- mer needs to have an excellent understanding of mathematics, 2-D and 3-D graphics, physics, particle systems, user interface, artificial intelligence, input devices, and computer networking. ( Scott Rogers, 2014 )

2. Artist

   Just as with programming, video game art has become a specialized job. ( Scott Rogers, 2014 )

   1. Concept Artist
   2. Storyboard Artist
   3. 3D Modelers
   4. Environmental Artist
   5. Texture Artist
   6. Visual Effect Artist
   7. Animators
   8. User Interface ( UI ) Artist
   9. Technical Artist

3. Game Designer

   1. Level Designer
   2. System Designer
   3. Scripters
   4. Combat Designer

4. Game Producer

5. Product Manager

6. Tester

   1. Quality Assurance ( QA )

7. Composer

8. Sound Designer

9. Writer