Cleaning up the OP's file was very easy.
If you shoot RAW you have to take the time to learn to process it, if you don't, can't or won't you are better off shooting a custom Picture Style jpeg.
Just curious, what did you do to it? I have my own ways of getting some noise out, but I bet there are better methods.
Very quick global adjustments on the jpeg, so nothing fancy.
I opened it in ACR via Bridge, even though it is a jpeg, this gives you the RAW style noise reduction options that are in Lightroom, I really like ACR/Lightroom noise reduction and can't imagine why people buy NR plugins. I adjusted the luminance noise slider until I was happy (there is no colour noise so I didn't use that adjustment), this is normally much more than most people, I find I can reapply the detail, but you have to get rid of the noise first. I then did a little sharpening in ACR with a heavy mask, this is just with the slider but it allows you to target the detail, his hair and eyes, whilst not touching the noise prone smooth areas. I then opened it in PS and applied global Smart Sharpen and a curves adjustment to the bottom third of the histogram, this kept the highlight detail where it was but gave better general exposure.
It sounds like a lot but there are no selections or layers involved, everything is global, and it took under two minutes. If I had the RAW I could easily get rid of all the noise and retain 99% of the detail using a very similar workflow in a similar time. Indeed for this kind of shot, say an event shoot, if you had 1,000 images all with similar exposure (but not using auto ISO!!!!) you could batch process all the RAW files to output jpegs (or anything else) after recording a simple action.
I find Smart Sharpen in PS way way better than the sharpening options in Lightroom for files with any kind of issues.
Hope this helps.