Way 1 · best default
You did a great job
Clear praise for something someone has done. Works for work, school or helping you.
Examples
You did a great job on the wedding photos.
Thanks for organising the party. You did a great job.
In a conversation
A: So, how was my speech? Be honest.
B: You did a great job. Everyone was laughing at the right moments.
Common mistake
Not: You did a good work.
Say: You did a great job.
"Work" is uncountable, so no "a". Say "good work" or "a great job".