Foreigners wishing to live and work in Brazil are required to apply for a temporary residence visa. To obtain a temporary visa for employment purposes, the worker needs to secure a job offer from a Brazilian company or government department, or a foreign company based in Brazil, and the company is required to apply to the Immigration Division of the Ministry of Labor on the worker's behalf. The criteria for approval of an employment visa include suitable educational qualifications or work experience, a secured employment contract in Brazil, proof of adequate means of subsistence in Brazil, police confirmation that the worker has no criminal record, and a satisfactory medical examination. All official documents must be translated into Portuguese and 'legalized' by the consulate. The application processing period is normally around 2-3 months. Employment visas are issued for a specific job, and are not transferable between employers in Brazil without permission. Visas are also issued to the employment visa holder's spouse and children.

Can we conclude that do i need a work visa for brazil?
yes