Usually to authenticate Japanese language skills, proper certificate is acquired from Japanese Language authority in Japan. The exams are in July (First Sunday) and December (First Sunday). The best practice is start course 6 months before these exams to have enough margins to prepare for exams.
First we will prepare for the exam as well as for a Japanese society. The professional who wish to join Japanese companies will be helped to find jobs in Japan but there is no guarantee to exactly find job for his technical skills. We don't promise, but if using our consultancy the student get job, he needs to deposit extra fees of finding a job. If we could not find job for him in 1 year, 80% fees of job finding will be returned.