If I were moving to NZ right now Christchurch would be very low on my list. The traffic is a nightmare and property is scarce and expensive. There are certainly jobs in construction but maybe not in education. The schools are in turmoil at the moment with a large number scheduled for closure or merger. There is a big row going on and I can't see any of them recruiting new staff until the dust settles. Chch was a nice city to work and I'm sure it will be again but it may take 10-20 years at the current rate.