What series do assistant engineers belong to?

Assistant engineer is a junior technical title.

Technical titles are divided into junior: assistant engineer

Intermediate: Engineer

Senior: senior engineer

Senior: professor engineer

Different levels need certain conditions, including academic qualifications, qualifications and contributions. Engineers and above need to pass the national unified foreign language title examination and computer application examination, and also need to publish a certain number of papers or technical monographs in journals of specified types/levels.