How many types of engineers are there? What is it for?

Network Engineer

Cost Engineer

Software Engineer

Quality Engineer

Registered Electrical Engineer

Registered Safety Engineer

Supervision Engineer

Civil Engineer

Lighting Engineer

Registered Consulting Engineer

Chemical Engineer

Financial Database Engineer Engineer

Equipment Engineer

Environmental Engineer

Network Security Engineer

System Engineer

Architectural Engineer

Environmental Engineer

Hardware Engineer Electronic Engineer

PE Engineer

Registered Structural Engineer

Safety Engineer

Sales Engineer

Registered Engineer

Registered Supervision Engineer

Assistant Engineer

Electrical Engineer

Registered Cost Engineer

Information System Management Engineer

Registered Public Equipment Engineer

3g Engineer

Mechanical Engineer

Software Test Engineer

Structural Engineer

Weak Current Engineer

Public Equipment Engineer

Communications Engineer

Environmental Impact Assessment Engineer

Consulting Engineer

Supervision Engineer Examination

Supervision Engineer of the Ministry of Communications

Computer Engineer

Database system engineer

Mechanical and electrical engineer

Quality engineer

System integration engineer

Recruiting supervision engineer

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Test Engineer

Packaging Engineer

Pre-sales Engineer

Registered Chemical Engineer

Computer Engineer

caxa Manufacturing Engineer

CAD Manufacturing Engineer

UG Manufacturing Engineer

PROE Manufacturing Engineer

SW Manufacturing Engineer

Garden Engineer

Equipment Supervision Engineer

Wait...

There are many types, and each one is subdivided into many types.