Senior technicians are professional qualifications, and technicians are technical positions set up among senior technicians in various industries. Senior technician is a professional qualification certificate, not a professional title.
Technicians are not titles, but technicians are titles. The qualification certificate obtained by a worker technician belongs to the title of technician.
The mechanic is a superior mechanic. National technical occupations (jobs) and vocational qualification certificates are divided into five levels: primary skills, intermediate skills, advanced skills, technicians and senior technicians. Elementary, intermediate and advanced skills belong to mechanics.
Extended data:
There are two versions of vocational qualification certificates issued by Ministry of Human Resources and Social Security, namely, vocational qualification certificate (Grade I) and vocational qualification certificate (Grade II/Senior Technician).
With professional and technical (vocational) qualifications or senior technician qualifications recognized by the national human resources and social security departments, employed senior technicians can enjoy the same treatment as deputy senior technicians (senior engineers, senior accountants, associate professors and deputy chief physicians), and senior technicians in many provinces and regions can enjoy senior technician subsidies when they retire.
References:
Baidu Encyclopedia-Technician Certificate
Baidu encyclopedia-senior technician