One of the most important sections of your resume is your employment history. This is also one of the most interesting areas for potential employers. It will give them an idea of a few things: how long you have been working, if the work you have been doing is similar to what they do, and what you may have achieved in each position. A well-written employment history will give potential employers an idea of how you would fit in working for their company.
Employers are looking for quick, impressive information in a resume. Each entry in your work experience should look something like this:
Job Title/Dates of Employment (years)
Company Name, City State
This is merely an example. There are many other formats out there to document your employment history, and they should all have the same basic information: dates of employment, the name of the company you worked for, where the company is located, job title, and your duties and achievements. You should include your most impressive on-the-job functions, as well as the ones that are the most like what you would be doing at the new company.
Including the right information in your employment history may be the key to landing an interview, and then, hopefully an offer.