Public Employment Security Offices (Hello Work)

Hello Work is a government-run institution (Ministry of Health, Labour and Welfare) with offices in various parts of Japan that offers employment consultations and referrals regardless of nationality. They can introduce job-hunters to companies according to the conditions the candidates desire, such as type of work, wages, work hours and commuting conditions. Some Hello Work offices have foreign-language interpreters.
Please note that they will check your qualifications, such as your residence card and passport (with the designated document), to make sure that employment is possible.

Shinjuku Public Employment Security Office (Hello Work Shinjuku)