KRAFTJobs
Interview prep

Practice the work behind the question.

Choose a lane and role to see its real interview questions, what each tests, and a framework for strong answers. These are practice prompts and general guidance - not memorized scripts, and not every company interviews the same way.

Onchain Data Analyst

Expect questions about SQL, blockchain event and contract literacy, and data visualization, plus a scenario where the role must investigate broken pipelines, contract migrations, suspicious activity spikes, indexer delays, or metrics invalidated by protocol changes. Interviewers are looking for evidence that the candidate knows where data definitions and querying stop and attributing identity without evidence and formal investigations by default begin.

Open the Onchain Data Analyst role guide
  1. Role fundamentals

    How do you validate a query when the dashboard result looks plausible?

    Common follow-ups

    • Can you give a concrete example?
    • What would you do differently next time?
  2. Judgment

    Why is address count a weak user metric?

    Common follow-ups

    • Can you give a concrete example?
    • What would you do differently next time?
  3. Judgment

    How would you investigate a sudden increase in active wallets?

    Common follow-ups

    • Can you give a concrete example?
    • What would you do differently next time?

Weak-answer patterns

  • • Repeating jargon without specifics.
  • • Avoiding concrete examples.
  • • Claiming team outcomes as personal work.
  • • Presenting tools or follower counts as competence.
  • • Dashboards with no definitions
  • • Wallet counts called users
  • • Charts built from copied queries the author cannot explain

Self-review after practicing

ClarityRelevanceEvidenceDecision qualityBoundariesLearning
Build proof for these answers

Prepare with evidence

Build proof-of-workAnswers land better when backed by a real artifact - each role has a matching portfolio brief.Re-read the role guideThe role guide's boundaries and proof standards are exactly what these questions test.Get Hired journeyInterview practice is stage 11 - see how it fits before and after applications.