Too much coding = Backpain, ouch!

Do you have a chair with lumbar support?

i got a stand-up desk last week, i can say that it lessen the back pain i have from sitting too much, but my knees are aching when i stand too much. Maybe get a sit-stand desk if you can, it might help you.

@Dwigg something like this might help with standing desk https://google.nl/search/...

Unconventional hint: buy a black roll/fitness-roll/fasciae-roll and get to a physiotherapist near you - your weight doesn't matter and one session could be enough ($)! ask him/her to show you some exercises with this roll for your back. It really helped me a lot.