We have another school system so it may not be quite comparable, at 16 (9grade) I left school with one of the lowest degrees and started as an apprentice with three and a half years of training.

Now I am a System planner, designer, draftsman combined with other activities such as process optimization and surveillance, programming of welding robots, doing orders and some times I help out in the workshop if we have to make a dead line.

At some point next year probably also department head.

Started as some kind of plumber (has several professions united in it, heating construction, air conditioning systems, ventilation, plumbing, a bit electric as well), then worked as metalworker\pipe fitter, and welder and now this and I have to say that office work is pleasant but I don't understand what my predecessor did all day, he had half my workload and still I have time over that I usually invest in automating stuff or more quality, so even less work to do if I do that longer.