In my experience I have encountered two 10x engineers:
1) Moves fast, flexes their authority to sweep small stuff under the rug until it is out of scope and can be "fixed real quick" later. Often leverages many subject matter experts through effective and persistent communication and learns quick enough to get PRs through the door (that sometimes need "quick" fixes later). Enjoys selecting items that benefit their career the most, at the expense of others on their team. Mentors only enough to onboard and increase his team's yield, not to aid their careers. Fueled by the recognition and validation of peers through PR/project completion.
2) Gets shit done, is the SMI themself. Solo code cannon, but PRs go in clean, beautiful to look at. May not get along well with some but not necessarily abrasive to work with especially being part of their direct team. Can be a great altruistic mentor if they spare 5% of their time. Enjoys what they do, and the technologies they work with. Fueled by personal satisfaction in their achievements, and in uplifting their team.
Typically when you see the type 2 engineer, they are also an architect. It is very rare that they don't seem to have knowledge of nearly the entire system and all its interactions.
1) Moves fast, flexes their authority to sweep small stuff under the rug until it is out of scope and can be "fixed real quick" later. Often leverages many subject matter experts through effective and persistent communication and learns quick enough to get PRs through the door (that sometimes need "quick" fixes later). Enjoys selecting items that benefit their career the most, at the expense of others on their team. Mentors only enough to onboard and increase his team's yield, not to aid their careers. Fueled by the recognition and validation of peers through PR/project completion.
2) Gets shit done, is the SMI themself. Solo code cannon, but PRs go in clean, beautiful to look at. May not get along well with some but not necessarily abrasive to work with especially being part of their direct team. Can be a great altruistic mentor if they spare 5% of their time. Enjoys what they do, and the technologies they work with. Fueled by personal satisfaction in their achievements, and in uplifting their team.