Far from heavyweight, I was building innovative solutions for a small consultancy that became more successful and more practised at the same old solutions. Cue same boring problems. I took two years part-time to retrain with an education degree and now teach bright young minds 9-3 each day for 40 weeks a year. Pay cut worth it. All I was asking for at the end, was interesting problems to solve, but now I know that young people are more interesting and more worthwhile than any neural net or optimization problem. My 2c.