Thanks B for the introduction!
Macau's a very small city, population 0.5 million, and much more laid back than Hong Kong. Everything goes a bit slower there. I used to do day trips to Macau on Saturdays to get away from the crowd in HK. Cost of living in Macau is much lower than in Hong Kong but the pay is also significantly lower. For example, a factory worker in HK gets paid HKD7000 but only about HKD5000 in Macau. I think that's one of the reasons lots of HKers take the ferry to Macau for a weekend's entertainment (i.e. casinos and greyhound racing) and very reasonably priced Macanese, Chinese or Portugese meals. It's also a gateway to Zhuhai, an industrial mainland Chinese city.
If you haven't been to Macau before and don't speak Cantonese, you'll find it a bit difficult to settle in. The expat community is very small as most expats are either stationed in HK or across the border in Zhuhai. Personally I don't know of any expats living in Macau, but there are many who live in HK and travel frequently for work/gaming between Macau, Zhuhai and HK.
I have never considered living in Macau mostly because of lack of jobs, but that depends on what you do too. If you are in tourism/hospitality, there would be plenty of jobs, but not for IT and other professions.
An interesting fact if you haven't heard before - I've know it since I was a little girl - Macau has the highest population density
in the world, with over 17,000 people per sq km, closely followed by Monaco, and nearly 3 times the population density of Hong Kong.
Sorry I'm not not helpful on living and working in Macau. Hopefully someone living there can tell you more. If you want to know where to visit and what to do, I have many recommendations.