Is it possible to pursue a PhD while working full time and living in another country? I work full time as a Chief Operating Officer for a company and would like to pursue a PhD and study the population I am working with (women workers in fisheries). 

I have been researching different programs in Gender Studies centers, mostly in English speaking countries. 

I want to know if it is possible to pursue a PhD while working full time and living in another country? And if there are universities that are more flexible than others?
In regard to living in another country, at least in the US, most universities have a residency requirement (for example, Cornell's) that means you have to live there for some amount of time.

As far as working full-time, sure, it can be done. It will be extremely difficult and it may be a challenge to convince an advisor to work with you. A PhD is hard enough doing it full-time. Part timers seem to take 7-9 years in my field and finish with fewer publications.

Something that a potential advisor will ask you is why do you want a PhD if you already have a job and are going to continue working in that position? A PhD trains you to do research but you aren't really doing research as a CTO are you? If you just want knowledge in the field, then take some classes or study on your own.