How long does it take for the newly recruited pipeline installation assistant engineer of CLP No.4 Company to become a full-time employee?

Engineers have no regular holidays. Because as long as the professional and technical management personnel who meet the qualification requirements for reporting engineers can participate in the declaration, the professional title qualification evaluation and examination organized by the national and local Ministry of Human Resources and Social Security or the professional title qualification evaluation department of our bureau can only obtain the professional title qualification certificate of engineers through unified evaluation and examination, that is to say, they have the professional title qualification of engineers, but whether they can be employed by the unit depends on the number of positions employed by engineers in each unit.