A whole day, split into 3 or 4 points. I was in a group of 5. The first part the interviewer gave lots of information about the company and Japan in general and we were encouraged to ask questions. The 2nd part was a short demo, was given flashcards and other materials and shown the basic flow of a lesson. This was really relaxed and informal. Then there was a grammar test - very basic, included things like sentence structure, parts of speech, tricky spellings. Lastly was a 1-1 interview, again very relaxed but more interview type questions such as biggest weakness etc. Then was asked about preferences for City in Japan and start date.

The interview was fine. But I feel that this job is biased towards people who are naturally extroverted. If you're in an introvert or are socially awkward, I recommend applying somewhere else. This job is for people who have a naturally bright disposition. There are people like me who can be in a good mood but won't be all sunshine and smiley, But that doesn't mean we're unenthusiastic or unhappy to be around others. I also speak conversational Japanese and have spent time in Japan when other candidates who spoke no Japanese at all and had never been to Japan probably got the job instead. Not mention I drove 8 hours from Reno, NV to Los Angeles, CA just to be told I didn't get the job. That's hundreds of dollars of gas and hotel money I'll never get back. If this company truly cared about its applicants, they'd reimburse candidates who were rejected from the job with the money they spent getting to the interview. Especially when San Francisco, CA is a much closer option for a lot of potential applicants. If my interview had been there rather than LA, I'd feel better about the rejection of the job considering how much closer the drive would've been.