What is the title of Shenzhen Senior Auto Sheet Metal Worker?

Vocational skill level, senior workers are vocational skill level 3.

Vocational skills are the skill levels of employees in related industries in China, which are divided into five levels: junior workers, intermediate workers, senior workers, technicians and senior technicians.

The level of vocational skills is determined by qualified institutions entrusted by local labor departments (examination and assessment) and issued a national unified certificate. It is not a title, but can only be used as the basis and qualification for workers to take up their posts.