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Updated weekly · Last refresh Oct 17

Chainlink Labs Data Analyst Interview Questions

The questions to prepare for a Chainlink Labs Data Analyst interview. Questions from real interview reports rank first. Updated daily.

19questions
~3htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~46 min
7-Day Rolling Active UsersMedium
Practice

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsChainlink Labs
Optimize On-Chain Join QueriesHard

Tests performance tuning skills for large-scale joins across on-chain and off-chain datasets.

Performance TuningJoinssqlChainlink Labs
SQL for Monthly Active DevelopersMedium
Practice
Practice drill

Count distinct developers with successful smart contract interactions for each calendar month.

Date FunctionsJoinsGroup ByChainlink Labs
SQL for Top Accounts and RiskHard
Practice
Practice drill

Combine customer, usage, support, and revenue data to rank monthly accounts by operational activity and renewal risk.

Lag/LeadJoinsGroup ByChainlink Labs
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2
Metrics5 questions · ~43 min
Building Web3 Metrics DashboardMedium

Assesses your ability to design and deliver actionable Web3 metrics dashboards for smart contract and oracle stakeholders.

Chainlink Labs
Assess Economic Viability of Price FeedsHard

Tests your ability to model economics and operational costs for Chainlink Price Feeds across chains.

Chainlink Labs
Metrics for Cross-Chain Protocol HealthMedium

Tests your ability to define adoption and health metrics for decentralized cross-chain systems.

adoptionChainlink Labs
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3
Behavioral & Leadership8 questions · ~69 min
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4
More topics3 questions · ~26 min
Pricing Model for Blockchain DataHard

Tests product thinking and analytical approach to pricing decisions for data products used by Web3 teams.

Value PropositionChainlink Labs
Data Quality for JSON-RPC IngestionMedium

Tests your data engineering practices for validating and safeguarding raw node responses.

Data Qualitydata integrityChainlink Labs
Prioritize Networks for New Data FeedMedium

Tests your ability to translate on-chain signals into rollout decisions for Chainlink Web3 services.

Feature PrioritizationChainlink Labs
The finish line: interview-readyComplete all 19 questions plus 2 hands-on drills to finish this plan.