How can I get my shell to not tell me every time a job starts or stops?

I often run programs in parallel via the shell.

generate_some_info (){
    if [ $i -eq 4 ]; then echo "Here is some useful info." ; fi
    if [ $i -eq 7 ]; then ls --errorx; fi
}

for i in {1..10}; do
   generate_some_info&
done

Program output I'm trying to track is hard to see because the server notifies me every time a job starts or stops.

[2] 2052
[3] 2053
[2]  - done       generate_some_info
[2] 2054
[3]  - done       generate_some_info
[3] 2055
Here is some useful info.
[4] 2057
[3]  - done       generate_some_info
[3] 2058
[4]  - done       generate_some_info
ls: unrecognized option '--errorx'
[4] 2059
[3]  - done       generate_some_info
[4]  + done       generate_some_info
Try 'ls --help' for more information.
[3] 2060
[2]  - exit 2     generate_some_info
[2] 2061
[3]  - done       generate_some_info
[3] 2062
[2]  - done       generate_some_info
[3]  + done       generate_some_info

Is there a way to get a shell such as zsh or bash to not bury output in job notifications?