Every job gets dull over time, and we try to look for something new that is normal and will happen everywhere. You are in a unique situation at maybe the peak o

Every job gets dull over time, and we try to look for something new that is normal and will happen everywhere. You are in a unique situation at maybe the peak of compensation software devs will get (maybe not, who knows). You could be set for life if you stay another couple of years. This is huge. You can start as many companies as you want after that. I would grind it out and be set for life after and look for challenges outside work. Run an ultramarathon or learn to play the piano or whatever.