(Arguably) the most direct way to evaluate a software developer's skill is to read code he or she has written. Since most programmers can't share code they've w

(Arguably) the most direct way to evaluate a software developer's skill is to read code he or she has written. Since most programmers can't share code they've written for their employers, open source code is the quickest and easiest way to get a sense of someone's abilities without administering a coding test (which many engineers consider insulting or a waste of their time).