Yes. If there is work that you would like to specifically highlight, group your achievement(s) into your summary. If someone says not put a summary in your resume (beginning or end) you are making a mistake. Having an (albeit brief) identity helps you remain memorable in a sea of similarity. No need to list jobs 10 years ago, but saying you have written forum software or worked on a banking app is relevant to your career.
Yes. If there is work that you would like to specifically highlight, group your achievement(s) into your summary. If someone says not put a summary in your resume (beginning or end) you are making a mistake. Having an (albeit brief) identity helps you remain memorable in a sea of similarity. No need to list jobs 10 years ago, but saying you have written forum software or worked on a banking app is relevant to your career.