I was thinking about moving to Canada for a while under the IEC (working holiday) visa.
I'm a software engineer by trade and would look for work in that industry.
If I fall in love with the work / the employer wants me to stay - can I change my status / visa to an employer sponsored visa so I can stay longer than the IEC visa?
This is not possible. Can I apply for a work permit from inside Canada? is very clear in this: getting a work permit from inside Canada is very rarely allowed. You could check the Extend or change your work permit – International Experience Canada page as well but from the very brief description you gave us I would think the answer is no here as well.
