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How to prepare to interview software engineers

A practical preparation guide for software interviewers: define evidence, use consistent questions, take useful notes, and reduce trivia.

Short answer

Prepare to interview software engineers by defining the job-related evidence you need before choosing questions. Use the same core prompts and scoring criteria for candidates in the same process, prepare follow-up probes, take behavior-based notes, and score against the rubric before discussing the candidate with other interviewers.

What to remember

  • Start from job evidence, not favorite puzzles.
  • Standardize the core questions and scoring anchors.
  • Use follow-ups to understand reasoning without coaching the answer.
  • Record observed behavior separately from your interpretation.

Decide what evidence the interview must produce

A technical interview is an assessment, not a tour of everything an engineer might know. Choose a small number of job-related competencies, define what good evidence looks like at the target level, and remove questions that do not help distinguish those levels.

The U.S. Office of Personnel Management describes structured interviews as using predetermined questions and rating standards. That consistency gives every interviewer a shared reference and makes feedback easier to compare.

Prepare the prompt, probes, and rubric together

  1. Write the core prompt

    Make the task understandable without hidden trivia. State what the candidate may ask, assume, or look up.

  2. List neutral follow-ups

    Prepare prompts such as “What tradeoff are you making?” or “How would this change at ten times the traffic?” Avoid follow-ups that reveal the expected solution.

  3. Define scoring anchors

    Describe observable evidence for below, at, and above the target level. Keep polish, familiarity, and confidence separate from the competency being scored.

  4. Dry-run the interview

    Have another interviewer take the prompt. Confirm timing, ambiguity, and whether the rubric can score more than one valid approach.

Take notes that another reviewer can use

  • Capture decisions, questions, code or diagrams, and changes after feedback.
  • Quote sparingly and accurately when exact wording matters.
  • Separate observation from judgment: write what happened before what it may mean.
  • Score independently before the debrief when your process allows it.
  • Follow your company’s retention, privacy, and candidate-accommodation policies.

Study the domain you are evaluating

Interviewers need enough command of the topic to recognize multiple sound approaches and ask useful follow-ups. Review the prompt’s prerequisite concepts, solve it more than one way, and identify which tradeoffs are essential versus optional.

A custom Stokera map can organize that refresher around the actual interview domain—for example, API design, debugging, or distributed systems—then use quizzes and scheduled review to keep the rubric’s core concepts available across an interview cycle.

Common questions

Should every software candidate get the same questions?

Use the same core questions and scoring criteria for candidates in the same process when possible. Neutral follow-ups can adapt to a candidate’s approach without changing the competency being assessed.

What makes a technical interview question fair?

It should be job-related, understandable, scorable against predetermined evidence, and able to accommodate more than one valid approach. Follow the legal and accommodation guidance for your organization and location.

How should interviewers avoid trivia questions?

Ask for reasoning, decisions, and tradeoffs that resemble the work. If success depends on recalling an obscure fact that would normally be documented, the prompt may be measuring memory instead of the intended skill.

Sources and method

We prefer primary research and first-party documentation. Product details are checked against the company that owns them. Keyword targets are editorial hypotheses, not claims of search volume. Read our editorial policy.

  1. U.S. OPM: Structured InterviewsFirst-party government guidance on predetermined questions, rating scales, and interviewer consistency.
  2. U.S. OPM: Structured Interview GuideFirst-party development guide covering trial runs, rating scales, probes, and interviewer documentation.