I think the previous poster is wrong. In typical understanding of industry roles, a ‘sales guy’ doesn’t typically work hands-on with product development. Some variations of ‘marketing’ roles do indeed work on developing new products, so this might be less inaccurate.

But in reality, Jobs was probably unique in that he blended a combination of multiple roles - sales/marketing, product designer/manager, strategist/visionary, and had the muscle being CEO to impose his will accordingly.

The trope of “he didn’t really do anything as it was the engineers who did the real work” is one trotted out time and time again, by (presumably) grumpy engineers. And it misses the point that, yes, Apple (or Next, or SpaceX) wouldn’t have delivered their exceptional products without the hard work of the engineers, but they also wouldn’t have delivered them in the same way (or at all) without Jobs (or Musk) and what they offered, either.