Hi Martijn
Hope I spelled your name right
You are a civil engineer , I am sure your field of study comes under the skill shortage list (Long Term Shortage Skills)
It is easier to get a job once you have your PR , Companies are reasonably reluctant with regard to work permits etc etc.
Check Silver fern visa too - But this is limited and unsure about eligible countries.
The best bet is apply for SMC - Skilled Migrant Category
Check your qualifications under NZQA , Your age will give additional points too , not to mention your expereince.
I am sure you will be employed if the rebuild has really started , there have been concern's regarding the pace of it all starting off.
Hope it answers your questions.
Regards
RASHVK