How to Conduct Effective Live Coding Interviews: Best Practices & Scorecard

A comprehensive guide for engineering managers and interviewers on designing, scoring, and conducting practical live coding interviews that candidates love.

Pairlet TeamPublished: 2026-09-10

Great technical interviews simulate authentic day-to-day engineering—collaboration, problem decomposition, code clarity, and debugging under guidance—rather than testing niche syntax memorization.

4 Principles of High-Predictive Live Coding

1. Eliminate Setup Friction: Do not make candidates install local dependencies or register accounts before the session starts. 2. Focus on Real-World Tasks: Replace obscure dynamic programming puzzles with practical data transformations or async utilities. 3. Encourage Pair Programming: Treat the candidate as a colleague solving a ticket together. 4. Use Explicit Scorecard Rubrics: Standardize evaluation criteria across all team interviewers.

  • Problem Solving (25%): Clarifying edge cases, breaking requirements into modular steps.
  • Code Quality & Architecture (25%): Descriptive naming, clean function signatures, immutability.
  • Language Mechanics (25%): Proper usage of ES6+ features, async control flow, and type safety.
  • Communication & Collaboration (25%): Explaining thoughts aloud, reacting constructively to feedback.

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