[t_fatus]

Make it three-dimensionalby adding a fourth circle with C-level skills and you've got the CTO diagram ! Seriously this is by far the smartest thing I've read associated with "senior developer", and can be of great use when hiring decisions need to be made.

[foxbarrington]

What are some C-level skills?

[t_fatus]

Probably not the best word ... More like : * be able to stand in front of investors and explain where you want to see the company in 5Y, and why * create a great culture everybody share * speak a language sales people, HR people, tech people, devops people, legal people can understand, and be curious about their different jobs