Canada

Both are competitive and PR is based on the points-based immigration system. Obtaining PR depends on a country's skills shortage too, you must have the necessary qualifications, work experience and must meet the demands. There are some jobs which are more in demand in Australia than Canada and vice versa. The visa application or assessment system in Canada is accepted in one state that is you must make multiple application when you move from one state to another whereas in Australia it is accepted as a whole. There are a number of differences, you must check these and decide. Check the links below and understand the differences
http://www.border.gov.au/
http://www.cic.gc.ca/ctc-vac/getting-started.asp

Hi,
You have a good academic profile, so as per your profile pursuing Master's degree in production engineering and related fields are the best options for you.
Master's degree puts you in the position to gain more skills, a Master's degree allows you to build skills that transcend those you acquired in a more basic setting.
Please note that when employers scale back on their hiring and job competitiveness increases, then having a Master's degree could give you the edge over your competition by making you more marketable as compared to PG Diploma holders.
For your reference, find below, some of the finest universities in Canada offering Master's degree in production engineering and related fields:
1. University of Alberta
2. University of British Columbia
3. University of Toronto
4. University of Manitoba
5. University of Calgary
In order to pursue Master's degree from universities in Canada, you need to have a relevant undergraduate degree from recognized university with good academic record preferably 60-70 percent marks in graduation, you need to take below-mentioned tests:
1. GRE
2. TOEFL or IELTS
To pursue Master's degree in Canada, you need to have the GRE score of 300 plus and TOEFL score of 90 plus and more than 6 bands in IELTS.
All the best.