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10 Technical Interview Red Flags (From Both Sides)

Red flags in candidates, and in your own process. Spot both to hire better and faster.

Elena Voss·Head of AI Delivery, Aiporate··7 min read·Share on XLinkedIn

Key takeaways

  • Red flags run both ways, candidate and process.
  • Assess judgment and ownership, not just trivia.
  • A broken process repels the best candidates.
  • Realistic work samples beat gotcha puzzles.

Interviews reveal red flags in both directions: warning signs in candidates, and flaws in your process that repel great people. Watching for both improves quality and speed.

Red flags in candidates

  • Can't explain past decisions or trade-offs.
  • Blames others for every failure.
  • No curiosity about your actual problem.
  • Impressive keywords, shallow when probed.
  • Dismissive of testing, ops or collaboration.

Red flags in your process

  • Trivia and puzzles unrelated to the job.
  • Endless rounds with no decision.
  • No realistic work sample.
  • No one senior assessing the signal.

Frequently asked questions

What's the best way to assess engineers?

A short, realistic work sample tied to your actual problem, plus a pairing session to see how they think. It beats trivia and gotcha puzzles for predicting on-the-job performance.

How many interview rounds is too many?

If you can't decide after a work sample and a couple of focused conversations, more rounds usually add noise, not signal, and repel strong candidates.

How do I assess AI skills without deep expertise?

Use a realistic sample and a senior assessor (a fractional lead or vetted network) so you're judging real work, not credentials.

Elena Voss

Head of AI Delivery, Aiporate

Elena has spent 12 years building and embedding AI and data teams inside B2B SaaS companies, from first pilot to enterprise-wide platform. At Aiporate she leads how forward-deployed talent is matched, onboarded and shipped to production.

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