>>1615170Bong controller here. It's just like any job really some stressful days some less so. I used to be a flight dispatcher and found that more stressful.
>>1615183Certain aspects could theoretically be automated. Airways airspace has the potential since it is so structured, especially in Europe, but no way it could be done in Class G.
>>1616206It really depends on your country. Most of the airports as well as the enroute centres will be operated by a government organisation/company. So find out what that is then check their career page. Many smaller airports are owned and operated either by the local town or company so check with them. There are also contract companies like Serco and Midwest ATC who supply controllers to airports that don't want to go through the hassle of running their own air traffic.