Technical depth
Check command of WCAG 2.2 success criteria, ARIA patterns, EN 301 549 and ISO 9241-171, plus hands-on use of NVDA, JAWS, VoiceOver, switch access and eye-gaze input.
Evidence to listen for
- Explains the physics or mechanism behind their work, not just the tooling
- Names the standards, tolerances, and constraints they designed against
- Can defend a design decision under follow-up questions
- Distinguishes what they personally engineered from what the team delivered
Five-point scoring guide
Cannot explain the fundamentals of their own stated specialism.
Knows the vocabulary but not the underlying mechanism; struggles under follow-ups.
Solid working knowledge for the role; depth thins out on edge cases.
Strong command of the domain; explains trade-offs and defends decisions well.
Cites specific success criteria and ARIA roles from memory, and describes real behaviour differences between JAWS, NVDA and VoiceOver.