In addition to the typical CV/résumé for an IT interview, it might be helpful to the prospective employer to see a concise page displaying the candidate's skills. Because many of us who have been in the IT field for several years have very long lists of programming languages, frameworks, tools, IDEs, APIs, etc, that we have worked with, it might be helpful to break out the skills into separate categories. Better yet, instead of just listing them on a page, why not make a diagram? Here is a simple example:
Such a diagram can be saved to a PDF, then emailed to prospective employers or distributed at interviews.