I applied through a recruiter. The process took 2 months. I interviewed at Lotte Data Communication (Seoul) in May 2017
Interview
Document -> Primary Interview -> Secondary Interview -> a physical examination-> Salary negotiations and final offers
It's a normal process like any other company.
There are more questions about whether you can adapt to the company than about the skills.
Interview questions [1]
Question 1
Why did you quit your previous job?
What do you think about your job as an engineer?
Simple technical questions