For me keeping it quick helps alot. No need to be in the gym for 1.5-2 hours, especially if you can wrap up your workout in 50 minutes. I'm just there to get my reps in, no more no less.

To that end either find a split that doesn't target as many muscle groups in 1 session. Like Push Pull Legs. Or super set as much as possible.

For finding motivation to actually do it, I tend to workout after already being productive. So clean up your room/kitchen, or code for a bit. And when that productivity train is going, keep it going. Or go immediately when coming home from work, don't first "relax". Keep the momentum high and tackle things of your todo list; like working out.