Mastek Data Engineer Interview Questions

The questions to prepare for a Mastek Data Engineer interview. Questions from real interview reports rank first. Updated daily.

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SQL & Data ManipulationStart here. 8 questions + 1 drill · ~81 min

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

Top Salaries Per DepartmentMedium

Tests SQL windowing and ranking logic for grouped top-N retrieval.

aggregationsql

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Window Functions vs Group ByMedium

Tests understanding of SQL analytics patterns and when to use each construct.

Window FunctionsGroup By

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Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

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Pipelines14 questions · ~124 min

Assesses understanding of dbt features and how seeds fit into a data transformation workflow.

dbt MaterializationsMedium

Evaluates knowledge of dbt build strategies and their impact on data modeling and performance.

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Intermittent Data Source FailuresMedium

Tests resilience strategies like retries, backoff, and fallback handling in pipelines.

resilience

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Behavioral & Leadership8 questions · ~71 min

Handling Project ChallengesMedium

Evaluates how you communicate technical challenges and your problem-solving approach.

Data Analysis

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