There are four advertised IT jobs for every one unemployed job seeker. The lack of applicants is only part of the problem of IT jobs going unfilled. This leaves a gap between the jobs that need to be done and the people who, though willing and eager to do them, maybe aren’t quite qualified to do so. With tech innovation moving at a breakneck speed, this skills gap is likely to widen. Here’s what you need to know to avoid falling into that gap.