Why Technical interview Matters
Technical evidence can distinguish memorised claims from applied understanding and reveal how someone makes trade-offs. An improvised interrogation can instead reward familiarity with puzzles, one language, fast speech or insider conventions while excluding capable candidates whose real work is collaborative or reference-supported.
Terms Recruiters Commonly Compare
Coding test
A coding test is a specific work sample or assessment focused on programming. A technical interview may examine architecture, diagnosis, security, domain knowledge and communication as well as code.
Behavioural interview
A behavioural interview asks for evidence from prior situations. A technical interview may use past examples, but it primarily targets specialised knowledge and applied judgement.
Recruitment Example
A platform-engineering interview gives every candidate the same small incident report and architecture context. The panel scores risk identification, diagnostic sequence, trade-offs and communication against anchored examples. Candidates may ask clarifying questions and use ordinary documentation, reflecting the job more closely than reciting commands from memory.
What a strong score guide contains
A score guide should describe observable evidence at meaningful performance levels, including acceptable alternative approaches. A list of expected keywords is not enough to evaluate reasoning.
- Criterion being assessed
- Prompt and permitted probes
- Positive and concerning evidence
- Anchors for score levels
- Critical error, if genuinely job-related
Implementation Playbook
- Start with the technical decisions and tasks performed in the job, including tools or references normally available.
- Choose questions and exercises that sample distinct criteria without repeatedly measuring the same narrow skill.
- Provide format, duration, preparation, allowed resources, accessibility contact and evaluation themes in advance.
- Train assessors to ask consistent probes, take evidence notes and score before panel discussion.
- Review candidate burden, score reliability, subgroup outcomes and later job evidence after enough appointments.
Common Mistakes
- Letting each interviewer ask whatever topic they personally find interesting.
- Using speed on an unfamiliar puzzle as a proxy for day-to-day engineering quality.
- Rejecting a sound alternative because it differs from the interviewer’s implementation.
- Requesting a lengthy solution to a live business problem without payment or clear intellectual-property terms.
Metrics to Track
Questions Recruiters Ask
How long should a technical interview be?
Use the shortest format that gathers enough independent evidence for the defined criteria. State the duration beforehand and consider total candidate burden across every stage.
Should candidates be allowed to use documentation?
If the job normally allows it, permitting realistic resources can improve relevance. The team can still assess how the candidate finds, evaluates and applies information.
Who should conduct a technical interview?
Use trained assessors who understand the work and scoring evidence. A technical expert still needs interview preparation and should not make an unstructured decision alone.
Sources and Review
ATZ CRM Recruitment Editorial Review · Reviewed 2026-08-05
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