Having spent 2 years working at an international school in Yangon, education is at a developing stage and democracy has a long way to go. If you want to spend all your time in bars, drinking cheap booze and ignoring the massive poverty and broken down infrastructure around you, this is the place for you.
The authorities often do not check credentials or criminal record backgrounds of teacher - a number of whom come with fake qualifications. Rents are very high and some schools stick teachers in a total dump. Power cuts are still frequent and the rainy season is long.
It is kind of the dumping ground for teachers who can't get well-paying jobs in Thailand. Beware of money grabbing school owners who are related to thugs and can get very nasty.
Thailand has far more freedom than Myanmar.