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Updated weekly · Last refresh Oct 17

data consultancy Software Engineer Interview Questions

The questions to prepare for a data consultancy Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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System DesignStart here. 10 questions · ~82 min

Design a Fault-Tolerant Web ML StackMedium

Design an ML-backed web application that stays available through dependency failures, model issues, and traffic spikes.

InfrastructureModel ServingQualityddata consultancy

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Coding20 questions · ~163 min

TypeScript vs JavaScript TypingMedium

Assesses understanding of typing benefits and design trade-offs.

javascripttypescriptddata consultancy

Ice Block Creative BrainstormEasy

Assesses creativity and structured thinking in an open-ended prompt.

Problem Solvingddata consultancy

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SQL & Data Manipulation5 questions + 3 drills · ~71 min

Basic Database Design and Many-to-ManyMedium

Evaluates relational modeling skills and ability to translate schema into queries.

database designddata consultancy

SQL and Data Differences Plus QueryHard

Evaluates SQL fundamentals and understanding of SQL vs NoSQL trade-offs.

system designsql queriesddata consultancy

SQL Query OptimizationMedium

Practice

Practice drill

Optimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.

Performance Tuningdatabase optimizationindexesDDroisys

Capgemini

Nomura

Detect Duplicate Records in SQLMedium

Practice

Practice drill

Identify duplicate active Finacle transactions using a CTE, grouped business keys, and a customer lookup.

sql querydata integrity

Finacleddata consultancyDDXC

SQL Joins and Use CasesEasy

Practice

Practice drill

Identify common SQL join types and explain when each is appropriate.

Joinsdatabase queryingjoin types

Ntt Data Europe & Latamddata consultancy

NTT DATA

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Security & Infrastructure4 questions · ~33 min

HTTPS S and MechanismEasy

Evaluates understanding of HTTPS security and TLS basics.

Securityddata consultancy

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Pipelines3 questions · ~24 min

Kubernetes and Microservices OrchestrationMedium

Assesses practical experience with container orchestration and microservices operations.

kubernetesmicroservicesddata consultancy

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Execution3 questions · ~24 min

Debugging Production Performance IssuesHard

Tests your troubleshooting strategy for latency, throughput, and resource bottlenecks in production.

Debuggingproductionddata consultancy

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