Experience and Qualifications

Work experience is by far the most important topic of any job interview (at least in the United States and Britain). Therefore, it is important to explain what experience you have in detail. Generally, employers want to know exactly what you did and how well you accomplished your tasks. This is not the time to be modest. Be confident, and talk freely about your accomplishments in past employment.

The tenses you should use are the following:

When talking about current employment be careful to use the present perfect or present perfect continuous. This signals that you are still performing these tasks at your current job, for example:

Smith and Co. have employed me for the last 3 years as a salesperson. I have been creating customer contacts for 6months. Etc.

When talking about past employers use the past tenses to signal that you are no longer working for that company, for example:

I was employed by Jackson's from 1989 to 1992 as a clerk. I worked as a receptionist at the Ritz while I was living in New York. Etc.