FDE candidates often present well because communication is part of the job. The interview system must distinguish confident explanation from evidence of effective deployment work.
Use an incomplete case
Give the candidate enough context to begin, but not enough to jump straight to architecture. Observe the discovery questions, assumptions and decisions that change the problem. A complete take-home specification tests execution, not forward deployment.
Inspect real artefacts
Ask the candidate to select a non-confidential artefact from a deployment: a diagram, plan, incident timeline, decision record, evaluation or anonymised code fragment. The artefact grounds the conversation and makes personal contribution easier to examine.
Follow the consequence
- What did you know at the time?
- Which option did you reject and why?
- Who disagreed, and what changed?
- What failed after the decision?
- What became reusable?
These follow-ups test judgement and ownership without turning the interview into a memory contest for ideal answers.
Separate evidence from synthesis
Interviewers should submit evidence and anchored scores independently. The final discussion should identify contradictions, unresolved risks and what would need to be true for the candidate to succeed.
If every interviewer says “strong overall” but cannot name a decision, artefact or result, the process has produced sentiment rather than evidence.
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