This is a self-assessed skill matrix, last updated 2026-06-01. It is anchored to evidence in my professional vault. The radar is honest, not promotional: a skill at novice stays at novice.

Scale

Level	Meaning
1	Novice
2	Competent
3	Proficient
4	Expert
5	Authority

Engineering

Skill	Level
Backend	Expert (4)
Frontend	Proficient (3)
Data / ML	Proficient (3)
Infra / DevOps	Expert (4)
Systems design	Proficient (3)

Product

Skill	Level
Product sense	Proficient (3)
User research	Competent (2)

Domain

Skill	Level
Economics	Proficient (3)
Finance	Proficient (3)
AI tooling	Expert (4)

Soft skills

Skill	Level
Writing	Expert (4)
Teaching	Proficient (3)
Leadership	Proficient (3)