How could you start a programmer job?

Basic stuff:
1. Be familiar the hello world of the language for the project (which you cannot know all the programming lanauge/framework before your work)

2. Be familiar the compilation procedure and setting for the project (e.g. version of SDK/Framework)

Understand the business logic:
1. Study the user manual

2. Study for the requirement spec

3. Study for the functional spec

4. Study for the integration spec (if the project provide service for others)

Understand the program architecture:
1. Study for ER diagram (if have)

2. Study for the architecture/micro-architecture diagram of the project

3. Ask which framework did the project used

4. Ask which library did the project use

5. Study for the class diagram

6. Draw the diagrams(Class Diagram/ER Diagram) once to familiar of the project (especially there are no diagram provides)

Remarks: There are no shortcut for success, never give up and you would become the expert