The HR team representatives hire people differently based on experience level. For associates it's a regular campus promotion in Korea. After you send in your documents (application form, CV, transcripts) there are interviews for shortlisted candidates. The interview consists of two parts: one with the HR team and one with your immediate team of choice (if you can choose, because sometimes you can't). After the positive decision is made, you have to pass a basic medical examination and receive your job offer with the final contract.