Obviously everyone is different in how they review resumes, but I am Software Engineer and whenever I see a resume with a github, I'll usually visit that first before even reading the rest of their resume.
Since I work in and around Github and open source, usually someone's Github will tell me what I really want to know about them (not always, but really good candidates have a Github profile that stands out).
Since I work in and around Github and open source, usually someone's Github will tell me what I really want to know about them (not always, but really good candidates have a Github profile that stands out).