I got me a PhD in biochemistry too, and 50 is on the horizon, so I'll chime in. As Alexander VI said, traveling while working is tough. There is no market that I've found for migrant bench scientists. As has been suggested, your best bet is to choose a country to live in for a while and work there. Teaching, as suggested, is a good bet, though international schools usually want teaching experience, and universities will look at your academic and publishing record. But as you say you want to do this only for a few years it may make it difficult to get back into your current line of work when you are ready to return home.
In my case I helped set up a new company in China, so I created my own job. That's a difficult path without local help. A slower but more conservative path is to look at international companies in Canada, pharma in your case I would presume, that have research operations in countries you are interested in. After a year of employment these companies will often discuss transferring you to other sites. You can apply to their international sites directly, but then you will generally be considered as a 'local' hire, at sometimes much lower wages and difficult visa hurdles.
Another option is to do as Alexander VI suggests and list all your skills and evaluate them for portability; specifically I'd suggest to look at them from the perspective of working as a consultant. Do you have experience is setting up equipment, assays, production lines, etc. that you can market to companies? You'll need to network to find contracts, but this would give you the most flexibility, and may get you close to your ambition of traveling while working.
Good luck
