Farzad.
This is what the
Operations Manual says about part-time work. Perhaps it would be a good idea to read through the whole page just to make sure your particular part-time work experience is covered.
G4.1.10 Part-time work
a. Calculation of levels of work experience must be for complete weeks based on a 30-hour week.
b. Credit is given for 30-hour weeks only, even though a principal applicant* has worked more than 30 hours in any week.
Example: Fifty-two 60-hour weeks are equal to one year's work experience.
c. Credit for part-time work experience may be given on a proportional basis.
Example: Four years' work experience for 15 hours per week is equal to 2 years' work experience for a 30-hour week, and would therefore be awarded one point.
Skilled employment can be anywhere as long as it is in a comparable labour market, but NZ experience is highly regarded.
NZ is very big on tourism and I'm sure your Eco Tour Guide licence would be appreciated, but I doubt you could claim extra points for it if you are claiming for your computer engineering etc.