Is Luanda safe for a foreigner?

Hello everybody,

I have a job opportunity in Luanda. I'm a thin, young, white guy and I'm a bit worried about living in Luanda, as i've heard it can be quite a dangerous city.

I was wondering if I could be safe walking mostly in wealthy suburvs mainly traveling by Uber (or the equivalent) and only step foot outside at night in town in order to take a Uber from various locations (restaurants, clubs, etc...)

Thanks in advance