Actually, since the recession, unemployment increased by the same proportion in all sectors of the economy. That is, software engineering unemployment is about

Actually, since the recession, unemployment increased by the same proportion in all sectors of the economy. That is, software engineering unemployment is about twice what it was before; construction unemployment is about twice what it was before; etc. etc. etc. This indicates that the problem is not structural (i.e. not due to people having the wrong skills), but due to a shortfall in demand: everybody tightened their spending at the same time. Sources can be dug up if desired.