List your most recent experience first. The only exception may be if you have more directly relevant experience in a previous position, but in general, list your work history from most recent to most distant.
Do not clump information together in big paragraphs. Instead, use bullet points. This allows recruiters to most easily identify the applicable information, including work experience, in your resume.
For competitive positions in the marketplace, more than 90% of resumes do not make it past the initial screen and are forever lost in the 'black hole' of the application process. During the initial screen, Recruiters often spend less than ten seconds looking at your resume. Putting the most relevant information as the top points for any previous employment increases the likelihood this information will not be glossed over.
Whether your resume is being screened by a real person or a machine, using keywords throughout your work history can go a long way in your job search. To determine what the relevant keywords are, doing a simple Google search on keywords in any profession or industry should provide a lot of useful information. Incorporating keywords from the job posting can be beneficial as well.
An organization wants to hire the person they believe can bring the most value to their company. What is often the best indicator of future success? Past success. Quantifying past success is often the most powerful way to show your future value, and one of the best ways to bring your resume to the top of the list.