There is lots of sites on line that shows you how to write a resume.
In general, if you don't have much experience you focus on your academic achievement and any training you got.
If experience is plenty , then that is what you focus on, your title, what your duties were and what you brought to the company you were working for.
It’s always good to start the resume with a paragraph explaining what sort of professional you are and the strength in your professional character. Most employers don’t go beyond the first three lines if they were not impressed!!
One easy way out is search on line for resumes related to your field.
After you find a couple that you like, use them as a source for your vocabulary and line of thoughts.
Write and format the resume professionally, watch for spelling mistakes and out of format conditions.
Make it one page if possible. Don’t do that if you have long experience that you want to show.
Other than experience detail your skills, languages you know, computer skills, programs you can use, any related your profession programs or machines you can use.
Don’t report stuff like your religion, sex, nationality or age
Ensure that your contact information is posted within the resume
Don’t Lie!!! And good luck