私の仕事はずっと椅子に座ってパソコンに向かう仕事なの。って英語でなんて言うの？

This phrase explains that your job isn't very active, if you are sitting in front of a computer all day then you don't have much opportunity to leave the office. You can say 'I have to sit in front of a computer all day at work' to specify it is your job requirement.

Both of these sentences mean the same thing. If something is 'computer-based' then the majority of it is sat at a computer. Of course, this can also be replaced by "sit at a computer all day". You could also add onto this sentence how you feel about this, "I love working on computers" or "I find this really boring".

Sitting in front of a computer all day, describes a sedentary job that does not require you to be on your feet for very long. Sedentary describes the lifestyle of a person that spends too much time seated somewhere and being inactive. We often use 'seriously' to put emphasis on the next word in the sentence and to describe the next word as being a 'lot' of something. For example: "He is seriously annoying" "She is seriously intelligent"

"I am glued to a computer all day." Glued - stuck, not moving, in one place. So you are in one place all day and that is in front of a computer. OR you could say " My job keeps me glued to a computer screen!" "My eyes are glued to a computer screen all day!" "I work at my desk on a computer all day." At my desk - this is saying where you are working. If you are working at a sitting or standing desk you could say "I sit at my desk working on my computer all day." or "I stand at my desk/workstation and work on my computer all day." Hope this helps!

To explain that your job requires you to sit in a chair all day and use a computer, you can say: "My job requires me to sit at a computer all day."

Explanation: 1. This is a normal description of a person's working position. Sentence 2 is an informal explanation by someone who seems unhappy with sitting down all day. Example sentence: "Long hours at my computer desk make me weary by the end of the day."

If you need to do something you can also say you are 'required' in front means you are sitting with something facing you

If your job requires you to use the computer for most of the day, it is quite common, so we say that my job requires me to be at the computer all day. This implies that you are sitting down. Of course if you would like to be more specific, you can say that your job requires you to sit down in front of the computer all day. For most of the work day I have to sit at the computer. We say this quite often, so people know how it is when you say that you sit at the computer. We know that you are sitting, usually at a desk and doing a lot of typing.