I have to disagree with most of the others.

Remove this guy Immediately.

There is ALWAYS a "holiday, sickness, death, marriage, typoon or some other excuse.

Your team is everything, your production and quality will all come down to your weakest link.

Also i assure if you can already see that this engineer takes 5 times longer, then you are paying him 5 times more then you need to. This guy is bleeding you dry.

This in not the 80's or 90's - people move on and change jobs every few months. Most jobs are contract based anyway. Dont get suckered in. I might sound cold, but this is experience, i have given so many people the benefit of the doubt but the trut ish some people have a bad work attitude, and those people have no passion to work towards your goals.