Resume advice is one of the more popular topics on the Talent Development Centre. We provide IT contractors with many formatting tips and discuss content that you should (or shouldn't) include in your technology resume, but we rarely go into specific design topics. After all, how important can the design of your resume be if it's only going to be read by a computer anyway? Surely, computers don't care how pretty something looks.
Although the chances are big that your resume will be screened by a computer before anyone else, if you're qualified for an IT position, a recruiter will still end up looking at it... and they're human. How your resume looks will affect a recruiter's perception of you before they start to review your background and skills, even if it's on a smaller, subconscious level. Therefore, it's a good idea to put some thought into this and, the simplest way is to double-check the font you're using.
Have a look at this infographic from Monster. You will probably find that you're already using a proper font (note Comic Sans is not listed). If you'd like to stand out, you will also find some different fonts that are both appropriate and can give your resume a modern feel.