What are the gradations and ranks of IT specialists?

Question

Career in IT

Good day everyone! Please tell me what gradations are in the IT industry and where to read about it? For example, such as: technical support specialist, analyst, software tester, system administrator, database architect, SQL-schik (to my surprise, hh also requires such specialists) designers, devops engineers, developer programmers.
You need an understanding of the hierarchy, who does what and what knowledge is required for this. For further education and employment. I will be glad to links to courses for training. Thank you!

Answer 1

There are no uniform gradations and ranks. Each company has its own.

Answer 2

Every organization is different. They can call it cool, as you agree.
In my organization for testers:
Junior Test Engineer Test
Engineer
Senior Test Engineer
Leading Test Engineer
Maybe there is a Test Expert (not sure)
Test Manager
Senior Test Manager
Quality Director
Then Deputy and Heads of Department
Testers test. The rank depends on the result of the interview and work experience. Accordingly, the RFP.

Answer 3

This is all specific to each large company, and sometimes to a specific department within a company.
We (domain registrar and hosting provider), for example, have Technical Operations, Datacenter Operations, Dev Ops, Site Reliability Engineers departments.
In each of these departments, including sysadmins, and each department has its own understanding of what it means to be a senior middle or a junior sysadmin.
I advise you to first of all choose a specialty / direction, and then try to find the differences between junior and middle, again, this will only be true in the context of one company / department.

Answer 4

WIKI

Answer 5

You can understand who does what by looking through the vacancies. And as for the ranks - in some companies there are grades .