In your resume, in your work experience, do you indicate a list of labor or everything in a row? Can there be problems? Were there?

Question

Career in IT

In your resume, in your work experience, do you indicate a list of labor or everything in a row? Can there be problems? Were there?

Answer 1

A resume for each position and each employer is written separately.
Indicate the experience that may be useful in this particular position.
If you worked as a waiter, but you are going to a web developer, you do not need to specify a waiter)

Answer 2

List all experience in the IT field. For a system administrator, any skills are useful (and I had to correct the layout in due time, cho).
What is not in the labor, write in a separate column simply. In my resume there was an item "server admin of small companies:" and a list of a couple of dozen such companies. Worse, such an item definitely did not.
It probably makes no sense to write a work not from IT. However, it is also useful to indicate how many years you have been working, for example - "From 1990 to 1995 I worked not in the IT field" - it is also useful for the employer to know that you got out of parental care and went to work not 3 years ago.