Samsung

It's a great place to contribute to unique innovation, with high potential of your work being literally in the hands of millions. Very interesting projects, with a pretty fast development pace and a lot to learn.

The Israeli subsidiary is a "foreign" body to the Korean headquarters, hence the main drawbacks. It's very difficult to get support or get responses from engineers or managers at HQ. You are often kept in the dark regarding your project status; it may be closed without any notice, or you may learn about requirement changes just before (or the day after) the deadline.

Generally, there is pressure to treat employees in the "Korean" way, meaning everybody should be willing to work as much as necessary and put in long hours to show their devotion to the company, travel abroad and stay there as long as necessary, etc. Local Israeli management may shield you from some of this pressure, or may not -- it depends on the group you are in.

There is quite a big flow of people leaving the company because of this work environment.

Listen to Israeli HR, and try to employ "cross-cultural" management to use the full potential of Israeli developers.