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Esko Interview Questions

The questions to prepare for Esko interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
Technical FundamentalsStart here. 5 questions · ~40 min
Python and SQL ProficiencyMedium

Evaluates programming and data querying skills relevant to DevOps tasks.

technical skillssqlpythonEEsko
SQL and Query SkillsMedium

Assesses SQL proficiency and practical usage.

technical skillssqlEEsko
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2
Execution3 questions · ~24 min
Pills Logic Problem RevisitedMedium

Tests approach to classic logical deduction under uncertainty.

Problem SolvingDevOpsEEsko
Resource-Constrained Logic ProblemMedium

Evaluates logical reasoning and approach to constrained scenarios.

Problem SolvingDevOpsEEsko
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3
System Design5 questions · ~40 min
High-Volume Data Processing SystemHard

Evaluates system design for performance, scale, and cost efficiency.

system designlatencycost constraintsEEsko
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4
Behavioral & Leadership11 questions · ~88 min
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5
More topics3 questions · ~24 min
Optimizing Slow Queries at ScaleHard

Explain how to diagnose and optimize a slow PostgreSQL query on large Apidel Technologies datasets.

SubqueriesJoinsData WranglingEEsko
Design Real-Time Feature PipelineHard

Design a real-time feature pipeline processing 120K events/sec into low-latency feature tables and warehouse models with replay and quality controls.

InfrastructureStream ProcessingOrchestrationEEsko
Project Planning With Tight DeadlinesMedium

Assesses your planning, prioritization, and delivery approach under schedule and resource constraints.

resource managementProject ManagementEEsko

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Problem SolvingMedium
Practice
Practice drill

Write SQL from scratch to summarize qualifying customer orders and classify spending levels.

JoinsData ManipulationProblem SolvingMicro1
SQL And Data ManipulationMedium
Practice
Practice drill

Summarize BigQuery project usage with success rates and average query duration.

project experienceanalytics toolsData ManipulationRemitly
SQL and Programming Interview MixMedium
Practice
Practice drill

Approach a mixed interview round while summarizing completed activity with a CTE, aggregation, and left join.

JoinsCTEssqlWise
The finish line: interview-readyComplete all 27 questions plus 3 hands-on drills to finish this plan.